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1,046 results on '"Costantini, G"'

1. Injection and capture of antiprotons in a Penning-Malmberg trap using a drift tube accelerator and degrader foil

Author

Amsler, C., Breuker, H., Bumbar, M., Chesnevskaya, S., Costantini, G., Ferragut, R., Giammarchi, M., Gligorova, A., Gosta, G., Higaki, H., Hori, M., Hunter, E. D., Killian, C., Kraxberger, V., Kuroda, N., Lanz, A., Leali, M., Maero, G., Malbrunot, C., Mascagna, V., Matsuda, Y., Maeckel, V., Migliorati, S., Murtagh, D. J., Nagata, Y., Nanda, A., Nowak, L., Rome, M., Simon, M. C., Tajima, M., Toso, V., Ulmer, S., Venturelli, L., Weiser, A., Widmann, E., and Yamazaki, Y.

Subjects
Physics - Accelerator Physics, High Energy Physics - Experiment, Nuclear Experiment
Abstract

The Antiproton Decelerator (AD) at CERN provides antiproton bunches with a kinetic energy of 5.3 MeV. The Extra-Low ENergy Antiproton ring at CERN, commissioned at the AD in 2018, now supplies a bunch of electron-cooled antiprotons at a fixed energy of 100 keV. The MUSASHI antiproton trap was upgraded by replacing the radio-frequency quadrupole decelerator with a pulsed drift tube to re-accelerate antiprotons and optimize the injection energy into the degrader foils. By increasing the beam energy to 119 keV, a cooled antiproton accumulation efficiency of (26 +- 6)% was achieved., Comment: 22 pages, 8 figures

Published
2024

2. Beam Charge Asymmetries for Deeply Virtual Compton Scattering on the Proton at CLAS12

Author

Voutier, E., Burkert, V., Niccolai, S., Paremuzyan, R., Afanasev, A., Alvarado-Galeano, J. -S., Atoui, M., Barion, L., Battaglieri, M., Bernauer, J., Bianconi, A., Bondi, M., Briscoe, W., Camsonne, A., Capobianco, R., Celentano, A., Chatagnon, P., Chetry, T., Ciullo, G., Cole, P., Contalbrigo, M., Costantini, G., Defurne, M., Deur, A., De Vita, R., Diehl, S., Dupré, R., Elouadrhiri, L., Fernando, I., Filippi, A., Forest, T., Girod, F. -X., Gosta, G., Grames, J., Gueye, P., Habet, S., Hattawy, M., Higinbotham, D., Hobart, A., Hyde, C., Joo, K., Kim, A., Klimenko, V., Kubarovsky, V., Leali, M., Lenisa, P., Marchand, D., Marsicano, L., Mascagna, V., Matamoros, D., McCaughan, M., McKinnon, B., Migliorati, S., Mitra, H. S., Movsisyan, A., Muñoz-Camacho, C., Osipenko, M., Ouillon, M., Pappalardo, L., Pasquini, B., Pasyuk, E., Pilleux, N., Poelker, M., Raue, B., Ripani, M., Santos, R., Schmidt, A., Singh, R., Sokhan, D., Spreafico, M., Stoler, P., Strakovsky, I., Taiuti, M., Venturelli, L., Wang, P. -K., Wei, X., Zhao, Z., Collaboration, the CLAS, and Group, the Jefferson Lab Positron Working

Subjects
Nuclear Experiment, High Energy Physics - Experiment
Abstract

The parameterization of the nucleon structure through Generalized Parton Distributions (GPDs) shed a new light on the nucleon internal dynamics. For its direct interpretation, Deeply Virtual Compton Scattering (DVCS) is the golden channel for GPDs investigation. The DVCS process interferes with the Bethe-Heitler (BH) mechanism to constitute the leading order amplitude of the $eN \to eN\gamma$ process. The study of the $ep\gamma$ reaction with polarized positron and electron beams gives a complete set of unique observables to unravel the different contributions to the $ep \gamma$ cross section. This separates the different reaction amplitudes, providing a direct access to their real and imaginary parts which procures crucial constraints on the model dependences and associated systematic uncertainties on GPDs extraction. The real part of the BH-DVCS interference amplitude is particularly sensitive to the $D$-term which parameterizes the Gravitational Form Factors of the nucleon. The separation of the imaginary parts of the interference and DVCS amplitudes provides insights on possible higher-twist effects. We propose to measure the unpolarized and polarized Beam Charge Asymmetries (BCAs) of the $\vec{e}^{\pm}p \to e^{\pm}p \gamma$ process on an unpolarized hydrogen target with {\tt CLAS12}, using polarized positron and electron beams at 10.6 GeV. The azimuthal and $t$-dependences of the unpolarized and polarized BCAs will be measured over a large $(x_B,Q^2)$ phase space using a 100 day run with a luminosity of 0.66$\times 10^{35}$cm$^{-2}\cdot$s$^{-1}$., Comment: Proposal to the Jefferson Lab Program Advisory Committee (PAC51)

Published
2023

3. Strong interaction physics at the luminosity frontier with 22 GeV electrons at Jefferson Lab

Author

Accardi, A., Achenbach, P., Adhikari, D., Afanasev, A., Akondi, C. S., Akopov, N., Albaladejo, M., Albataineh, H., Albrecht, M., Almeida-Zamora, B., Amaryan, M., Androić, D., Armstrong, W., Armstrong, D. S., Arratia, M., Arrington, J., Asaturyan, A., Austregesilo, A., Avakian, H., Averett, T., Gayoso, C. Ayerbe, Bacchetta, A., Balantekin, A. B., Baltzell, N., Barion, L., Barry, P. C., Bashir, A., Battaglieri, M., Bellini, V., Belov, I., Benhar, O., Benkel, B., Benmokhtar, F., Bentz, W., Bertone, V., Bhatt, H., Bianconi, A., Bibrzycki, L., Bijker, R., Binosi, D., Biswas, D., Boër, M., Boeglin, W., Bogacz, S. A., Boglione, M., Bondí, M., Boos, E. E., Bosted, P., Bozzi, G., Brash, E. J., Briceño, R. A., Brindza, P. D., Briscoe, W. J., Brodsky, S. J., Brooks, W. K., Burkert, V. D., Camsonne, A., Cao, T., Cardman, L. S., Carman, D. S., Carpinelli, M., Cates, G. D., Caylor, J., Celentano, A., Celiberto, F. G., Cerutti, M., Chang, L., Chatagnon, P., Chen, C., Chen, J.-P., Chetry, T., Christopher, A., Christy, E., Chudakov, E., Cisbani, E., Cloët, I. C., Cobos-Martinez, J. J., Cohen, E. O., Colangelo, P., Cole, P. L., Constantinou, M., Contalbrigo, M., Costantini, G., Cosyn, W., Cotton, C., Courtoy, A., Dusa, S. Covrig, Crede, V., Cui, Z.-F., D’Angelo, A., Döring, M., Dalton, M. M., Danilkin, I., Davydov, M., Day, D., De Fazio, F., De Napoli, M., De Vita, R., Dean, D. J., Defurne, M., de Paula, W., de Téramond, G. F., Deur, A., Devkota, B., Dhital, S., Di Nezza, P., Diefenthaler, M., Diehl, S., Dilks, C., Ding, M., Djalali, C., Dobbs, S., Dupré, R., Dutta, D., Edwards, R. G., Egiyan, H., Ehinger, L., Eichmann, G., Elaasar, M., Elouadrhiri, L., Alaoui, A. El, Fassi, L. El, Emmert, A., Engelhardt, M., Ent, R., Ernst, D. J., Eugenio, P., Evans, G., Fanelli, C., Fegan, S., Fernández-Ramírez, C., Fernandez, L. A., Fernando, I. P., Filippi, A., Fischer, C. S., Fogler, C., Fomin, N., Frankfurt, L., Frederico, T., Freese, A., Fu, Y., Gamberg, L., Gan, L., Gao, F., Garcia-Tecocoatzi, H., Gaskell, D., Gasparian, A., Gates, K., Gavalian, G., Ghoshal, P. K., Giachino, A., Giacosa, F., Giannuzzi, F., Gilfoyle, G.-P., Girod, F.-X., Glazier, D. I., Gleason, C., Godfrey, S., Goity, J. L., Golubenko, A. A., Gonzàlez-Solís, S., Gothe, R. W., Gotra, Y., Griffioen, K., Grocholski, O., Grube, B., Guèye, P., Guo, F.-K., Guo, Y., Guo, L., Hague, T. J., Hammoud, N., Hansen, J.-O., Hattawy, M., Hauenstein, F., Hayward, T., Heddle, D., Heinrich, N., Hen, O., Higinbotham, D. W., Higuera-Angulo, I. M., Hiller Blin, A. N., Hobart, A., Hobbs, T., Holmberg, D. E., Horn, T., Hoyer, P., Huber, G. M., Hurck, P., Hutauruk, P. T. P., Ilieva, Y., Illari, I., Ireland, D. G., Isupov, E. L., Italiano, A., Jaegle, I., Jarvis, N. S., Jenkins, D. J., Jeschonnek, S., Ji, C.-R., Jo, H. S., Jones, M., Jones, R. T., Jones, D. C., Joo, K., Junaid, M., Kageya, T., Kalantarians, N., Karki, A., Karyan, G., Katramatou, A. T., Kay, S. J. D., Kazimi, R., Keith, C. D., Keppel, C., Kerbizi, A., Khachatryan, V., Khanal, A., Khandaker, M., Kim, A., Kinney, E. R., Kohl, M., Kotzinian, A., Kriesten, B. T., Kubarovsky, V., Kubis, B., Kuhn, S. E., Kumar, V., Kutz, T., Leali, M., Lebed, R. F., Lenisa, P., Leskovec, L., Li, S., Li, X., Liao, J., Lin, H.-W., Liu, L., Liuti, S., Liyanage, N., Lu, Y., MacGregor, I. J. D., Mack, D. J., Maiani, L., Mamo, K. A., Mandaglio, G., Mariani, C., Markowitz, P., Marukyan, H., Mascagna, V., Mathieu, V., Maxwell, J., Mazouz, M., McCaughan, M., McKeown, R. D., McKinnon, B., Meekins, D., Melnitchouk, W., Metz, A., Meyer, C. A., Meziani, Z.-E., Mezrag, C., Michaels, R., Miller, G. A., Mineeva, T., Miramontes, A. S., Mirazita, M., Mizutani, K., Mkrtchyan, A., Mkrtchyan, H., Moffit, B., Mohanmurthy, P., Mokeev, V. I., Monaghan, P., Montaña, G., Montgomery, R., Moretti, A., Chàvez, J. M. Morgado, Mosel, U., Movsisyan, A., Musico, P., Nadeeshani, S. A., Nadolsky, P. M., Nakamura, S. X., Nazeer, J., Nefediev, A. V., Neupane, K., Nguyen, D., Niccolai, S., Niculescu, I., Niculescu, G., Nocera, E. R., Nycz, M., Olness, F. I., Ortega, P. G., Osipenko, M., Pace, E., Pandey, B., Pandey, P., Papandreou, Z., Papavassiliou, J., Pappalardo, L. L., Paredes-Torres, G., Paremuzyan, R., Park, S., Parsamyan, B., Paschke, K. D., Pasquini, B., Passemar, E., Pasyuk, E., Patel, T., Paudel, C., Paul, S. J., Peng, J.-C., Pentchev, L., Perrino, R., Perry, R. J., Peters, K., Petratos, G. G., Phelps, W., Piasetzky, E., Pilloni, A., Pire, B., Pitonyak, D., Pitt, M. L., Polosa, A. D., Pospelov, M., Postuma, A. C., Poudel, J., Preet, L., Prelovsek, S., Price, J. W., Prokudin, A., Puckett, A. J. R., Pybus, J. R., Qin, S.-X., Qiu, J.-W., Radici, M., Rashidi, H., Rathnayake, A. D., Raue, B. A., Reed, T., Reimer, P. E., Reinhold, J., Richard, J.-M., Rinaldi, M., Ringer, F., Ripani, M., Ritman, J., West, J. Rittenhouse, Rivero-Acosta, A., Roberts, C. D., Rodas, A., Rodini, S., Rodríguez-Quintero, J., Rogers, T. C., Rojo, J., Rossi, P., Rossi, G. C., Salmè, G., Santiesteban, S. N., Santopinto, E., Sargsian, M., Sato, N., Schadmand, S., Schmidt, A., Schmidt, S. M., Schnell, G., Schumacher, R. A., Schweitzer, P., Scimemi, I., Scott, K. C., Seay, D. A., Segovia, J., Semenov-Tian-Shansky, K., Seryi, A., Sharda, A. S., Shepherd, M. R., Shirokov, E. V., Shrestha, S., Shrestha, U., Shvedunov, V. I., Signori, A., Slifer, K. J., Smith, W. A., Somov, A., Souder, P., Sparveris, N., Spizzo, F., Spreafico, M., Stepanyan, S., Stevens, J. R., Strakovsky, I. I., Strauch, S., Strikman, M., Su, S., Sumner, B. C. L., Sun, E., Suresh, M., Sutera, C., Swanson, E. S., Szczepaniak, A. P., Sznajder, P., Szumila-Vance, H., Szymanowski, L., Tadepalli, A.-S., Tadevosyan, V., Tamang, B., Tarasov, V. V., Thiel, A., Tong, X.-B., Tyson, R., Ungaro, M., Urciuoli, G. M., Usman, A., Valcarce, A., Vallarino, S., Vaquera-Araujo, C. A., Venturelli, L., Vera, F., Vladimirov, A., Vossen, A., Wagner, J., Wei, X., Weinstein, L. B., Weiss, C., Williams, R., Winney, D., Wojtsekhowski, B., Wood, M. H., Xiao, T., Xu, S.-S., Ye, Z., Yero, C., Yuan, C.-P., Yurov, M., Zachariou, N., Zhang, Z., Zhao, Y., Zhao, Z. W., Zheng, X., Zhou, X., Ziegler, V., and Zihlmann, B.

Published
2024
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4. Beam Spin Asymmetry Measurements of Deeply Virtual $\pi^0$ Production with CLAS12

Author

Kim, A., Diehl, S., Joo, K., Kubarovsky, V., Achenbach, P., Akbar, Z., Alvarado, J. S., Armstrong, Whitney R., Atac, H., Avakian, H., Gayoso, C. Ayerbe, Barion, L., Battaglieri, M., Bedlinskiy, I., Benkel, B., Bianconi, A., Biselli, A. S., Bondi, M., Bossù, F., Boiarinov, S., Brinkmann, K. T., Briscoe, W. J., Brooks, W. K., Bueltmann, S., Burkert, V. D., Capobianco, R., Carman, D. S., Carvajal, J. C., Celentano, A., Charles, G., Chatagnon, P., Chesnokov, V., Chetry, T., Ciullo, G., Clary, B., Clash, G., Cole, P. L., Contalbrigo, M., Costantini, G., Crede, V., D'Angelo, A., Dashyan, N., DeVita, R., Defurne, M., Deur, A., Dilks, C., Djalali, C., Dupre, R., Egiyan, H., Ehrhart, M., ElAlaoui, A., ElFassi, L., Fegan, S., Filippi, A., Fogler, C., Gavalian, G., Gilfoyle, G. P., Gosta, G., Girod, F. X., Glazier, D. I., Golubenko, A. A., Gothe, R. W., Guo, L., Hafidi, K., Hakobyan, H., Hattawy, M., Hauenstein, F., Hayward, T. B., Heddle, D., Hobart, A., Holtrop, M., Hung, Yu-Chun, Ilieva, Y., Ireland, D. G., Isupov, E., Jo, H. S., Johnston, R., Joosten, S., Khachatryan, M., Khanal, A., Kim, W., Klimenko, V., Kripko, A., Kuhn, S. E., Lanza, L., Leali, M., Kabir, M. L., Lee, S., Lenisa, P., Li, X., MacGregor, I . J . D., Marchand, D., Mascagna, V., McKinnon, B., Matamoros, D., Migliorati, S., Mineeva, T., Mirazita, M., Mokeev, V., Moran, P., MunozCamacho, C., Naidoo, P., Neupane, K., Nguyen, D., Niccolai, S., Niculescu, G., Osipenko, M., Ouillon, M., Pandey, P., Paolone, M., Pappalardo, L. L., Paremuzyan, R., Pasyuk, E., Paul, S. J., Phelps, W., Pilleux, N., Pokhrel, M., Poudel, J., Price, J. W., Prok, Y., Radic, A., Ramasubramanian, N., Reed, Trevor, Richards, J., Ripani, M., Ritman, J., Rossi, P., Sabatié, F., Salgado, C., Schadmand, S., Schmidt, A., Sharabian, Y. G., Shirokov, E. V., Shrestha, U., Sokhan, D., Sparveris, N., Spreafico, M., Stepanyan, S., Strakovsky, I. I., Strauch, S., Tan, J., Trotta, N., Tyson, R., Ungaro, M., Vallarino, S., Venturelli, L., Voskanyan, H., Voutier, E., Watts, D. P., Wei, X., Wishart, R., Wood, M. H., Yurov, M., Zachariou, N., Zhang, J., Ziegler, V., and Zurek, M.

Subjects
Nuclear Experiment
Abstract

The new experimental measurements of beam spin asymmetry were performed for the deeply virtual exclusive $\pi^0$ production in a wide kinematic region with the photon virtualities $Q^2$ up to 8 GeV$^2$ and the Bjorken scaling variable $x_B$ in the valence regime. The data were collected by the CEBAF Large Acceptance Spectrometer (CLAS12) at Jefferson Lab with longitudinally polarized 10.6 GeV electrons scattered on an unpolarized liquid-hydrogen target. Sizable asymmetry values indicate a substantial contribution from transverse virtual photon amplitudes to the polarized structure functions.The interpretation of these measurements in terms of the Generalized Parton Distributions (GPDs) demonstrates their sensitivity to the chiral-odd GPD $\bar E_T$, which contains information on quark transverse spin densities in unpolarized and polarized nucleons and provides access to the proton's transverse anomalous magnetic moment. Additionally, the data were compared to a theoretical model based on a Regge formalism that was extended to the high photon virtualities., Comment: arXiv admin note: substantial text overlap with arXiv:2210.14557

Published
2023

5. Upgrade of the positron system of the ASACUSA-Cusp experiment

Author

Lanz, A., Amsler, C., Breuker, H., Bumbar, M., Chesnevskaya, S., Costantini, G., Ferragut, R., Giammarchi, M., Gligorova, A., Gosta, G., Higaki, H., Hunter, E. D., Killian, C., Kraxberger, V., Kuroda, N., Leali, M., Maero, G., Malbrunot, C., Mascagna, V., Matsuda, Y., Mäckel, V., Migliorati, S., Murtagh, D. J., Nanda, A., Nowak, L., Gustafsson, F. Parnefjord, Rheinfrank, S., Romé, M., Simon, M. C., Tajima, M., Toso, V., Uggerhøj, U., Ulmer, S., Venturelli, L., Weiser, A., Widmann, E., Yamazaki, Y., and Zmeskal, J.

Subjects
Physics - Atomic Physics, Physics - Plasma Physics
Abstract

The ASACUSA-Cusp collaboration has recently upgraded the positron system to improve the production of antihydrogen. Previously, the experiment suffered from contamination of the vacuum in the antihydrogen production trap due to the transfer of positrons from the high pressure region of a buffer gas trap. This contamination reduced the lifetime of antiprotons. By adding a new positron accumulator and therefore decreasing the number of transfer cycles, the contamination of the vacuum has been reduced. Further to this, a new rare gas moderator and buffer gas trap, previously used at the Aarhus University, were installed. Measurements from Aarhus suggested that the number of positrons could be increased by a factor of four in comparison to the old system used at CERN. This would mean a reduction of the time needed for accumulating a sufficient number of positrons (of the order of a few million) for an antihydrogen production cycle. Initial tests have shown that the new system yields a comparable number of positrons to the old system., Comment: 10 pages, 5 figures, under consideration for the Special Collection "Non-Neutral Plasmas: Achievements and Perspectives" in JPP

Published
2023

6. Slow positron production and storage for the ASACUSA-Cusp experiment

Author

Murtagh, D. J., Amsler, C., Breuker, H., Bumbar, M., Chesnevskaya, S., Costantini, G., Ferragut, R., Giammarchi, M., Gligorova, A., Gosta, G., Higaki, H., Hunter, E. D., Killian, C., Kraxberger, V., Kuroda, N., Lanz, A., Leali, M., Maero, G., Mal\-bru\-not, C., Mascagna, V., Matsuda, Y., Mäckel, V., Migliorati, S., Nanda, A., Nowak, L., Gustafsson, F. Parnefjord, Rheinfrank, S., Romé, M., Simon, M. C., Tajima, M., Toso, V., Ulmer, S., Venturelli, L., Weiser, A., Widmann, E., Wolz, T., Yamazaki, Y., and Zmeskal, J.

Subjects
Physics - Plasma Physics, Physics - Atomic Physics
Abstract

The ASACUSA Cusp experiment requires the production of dense positron plasmas with a high repetition rate to produce a beam of antihydrogen. In this work, details of the positron production apparatus used for the first observation of the antihydrogen beam, and subsequent measurements are described in detail. This apparatus replaced the previous compact trap design resulting in an improvement in positron accumulation by a factor of ($52\pm3)$, Comment: 9 pages, 7 figures

Published
2023

7. Strong Interaction Physics at the Luminosity Frontier with 22 GeV Electrons at Jefferson Lab

Author

Accardi, A., Achenbach, P., Adhikari, D., Afanasev, A., Akondi, C. S., Akopov, N., Albaladejo, M., Albataineh, H., Albrecht, M., Almeida-Zamora, B., Amaryan, M., Androić, D., Armstrong, W., Armstrong, D. S., Arratia, M., Arrington, J., Asaturyan, A., Austregesilo, A., Avagyan, H., Averett, T., Gayoso, C. Ayerbe, Bacchetta, A., Balantekin, A. B., Baltzell, N., Barion, L., Barry, P. C., Bashir, A., Battaglieri, M., Bellini, V., Belov, I., Benhar, O., Benkel, B., Benmokhtar, F, Bentz, W., Bertone, V., Bhatt, H., Bianconi, A., Bibrzycki, L., Bijker, R., Binosi, D., Biswas, D., Boër, M., Boeglin, W., Bogacz, S. A., Boglione, M., Bondí, M., Boos, E. E., Bosted, P., Bozzi, G., Brash, E. J., Briceño, R. A., Brindza, P. D., Briscoe, W. J., Brodsky, S. J, Brooks, W. K., Burkert, V. D., Camsonne, A., Cao, T., Cardman, L. S., Carman, D. S., Carpinelli, M, Cates, G. D., Caylor, J., Celentano, A., Celiberto, F. G., Cerutti, M., Chang, Lei, Chatagnon, P., Chen, C., Chen, J-P, Chetry, T., Christopher, A., Christy, E., Chudakov, E., Cisbani, E., Cloët, I. C., Cobos-Martinez, J. J., Cohen, E. O., Colangelo, P., Cole, P. L., Constantinou, M., Contalbrigo, M., Costantini, G., Cosyn, W., Cotton, C., Courtoy, A., Dusa, S. Covrig, Crede, V., Cui, Z. -F., D'Angelo, A., Döring, M., Dalton, M. M., Danilkin, I., Davydov, M., Day, D., De Fazio, F., De Napoli, M., De Vita, R., Dean, D. J., Defurne, M., Deur, A., Devkota, B., Dhital, S., Di Nezza, P., Diefenthaler, M., Diehl, S., Dilks, C., Ding, M., Djalali, C., Dobbs, S., Dupré, R., Dutta, D., Edwards, R. G., Egiyan, H., Ehinger, L., Eichmann, G., Elaasar, M., Elouadrhiri, L., Alaoui, A. El, Fassi, L. El, Emmert, A., Engelhardt, M., Ent, R., Ernst, D. J, Eugenio, P., Evans, G., Fanelli, C., Fegan, S., Fernández-Ramírez, C., Fernandez, L. A., Fernando, I. P., Filippi, A., Fischer, C. S., Fogler, C., Fomin, N., Frankfurt, L., Frederico, T., Freese, A., Fu, Y., Gamberg, L., Gan, L., Gao, F., Garcia-Tecocoatzi, H., Gaskell, D., Gasparian, A., Gates, K, Gavalian, G., Ghoshal, P. K., Giachino, A., Giacosa, F., Giannuzzi, F., Gilfoyle, G. -P., Girod, F-X, Glazier, D. I., Gleason, C., Godfrey, S., Goity, J. L., Golubenko, A. A., Gonzàlez-Solís, S., Gothe, R. W., Gotra, Y., Griffioen, K., Grocholski, O., Grube, B., Guèye, P., Guo, F. -K., Guo, Y., Guo, L., Hague, T. J., Hammoud, N., Hansen, J. -O., Hattawy, M., Hauenstein, F., Hayward, T., Heddle, D., Heinrich, N., Hen, O., Higinbotham, D. W., Higuera-Angulo, I. M., Blin, A. N. Hiller, Hobart, A., Hobbs, T., Holmberg, D. E, Horn, T., Hoyer, P., Huber, G. M., Hurck, P., Hutauruk, P. T. P., Ilieva, Y., Illari, I., Ireland, D. G, Isupov, E. L., Italiano, A., Jaegle, I., Jarvis, N. S., Jenkins, DJ, Jeschonnek, S., Ji, C-R., Jo, H. S., Jones, M., Jones, R. T., Jones, D. C., Joo, K., Junaid, M., Kageya, T., Kalantarians, N., Karki, A., Karyan, G., Katramatou, A. T., Kay, S. J. D, Kazimi, R., Keith, C. D., Keppel, C., Kerbizi, A., Khachatryan, V., Khanal, A., Khandaker, M., Kim, A., Kinney, E. R., Kohl, M., Kotzinian, A., Kriesten, B. T., Kubarovsky, V., Kubis, B., Kuhn, S. E., Kumar, V., Kutz, T., Leali, M., Lebed, R. F., Lenisa, P., Leskovec, L., Li, S., Li, X., Liao, J., Lin, H. -W., Liu, L., Liuti, S., Liyanage, N., Lu, Y., MacGregor, I. J. D., Mack, D. J., Maiani, L, Mamo, K. A., Mandaglio, G., Mariani, C., Markowitz, P., Marukyan, H., Mascagna, V., Mathieu, V., Maxwell, J., Mazouz, M., McCaughan, M., McKeown, R. D., McKinnon, B., Meekins, D., Melnitchouk, W., Metz, A., Meyer, C. A., Meziani, Z. -E., Mezrag, C., Michaels, R., Miller, G. A., Mineeva, T., Miramontes, A. S., Mirazita, M., Mizutani, K., Mkrtchyan, H., Mkrtchyan, A., Moffit, B., Mohanmurthy, P., Mokeev, V. I., Monaghan, P., Montaña, G., Montgomery, R., Moretti, A., Chàvez, J. M. Morgado, Mosel, U., Movsisyan, A., Musico, P., Nadeeshani, S. A, Nadolsky, P. M., Nakamura, S. X., Nazeer, J., Nefediev, A. V., Neupane, K., Nguyen, D., Niccolai, S., Niculescu, I., Niculescu, G., Nocera, E. R., Nycz, M., Olness, F. I., Ortega, P. G., Osipenko, M., Pace, E., Pandey, B, Pandey, P., Papandreou, Z., Papavassiliou, J., Pappalardo, L. L., Paredes-Torres, G., Paremuzyan, R., Park, S., Parsamyan, B., Paschke, K. D., Pasquini, B., Passemar, E., Pasyuk, E., Patel, T., Paudel, C., Paul, S. J., Peng, J-C., Pentchev, L., Perrino, R., Perry, R. J., Peters, K., Petratos, G. G., Phelps, W., Piasetzky, E., Pilloni, A., Pire, B., Pitonyak, D., Pitt, M. L., Polosa, A. D., Pospelov, M., Postuma, A. C., Poudel, J., Preet, L., Prelovsek, S., Price, J. W., Prokudin, A., Puckett, A. J. R., Pybus, J. R., Qin, S. -X., Qiu, J. -W., Radici, M., Rashidi, H., Rathnayake, A. D, Raue, B. A., Reed, T., Reimer, P. E., Reinhold, J., Richard, J. -M., Rinaldi, M., Ringer, F., Ripani, M., Ritman, J., West, J. Rittenhouse, Rivero-Acosta, A., Roberts, C. D., Rodas, A., Rodini, S., Rodríguez-Quintero, J., Rogers, T. C., Rojo, J., Rossi, P., Rossi, G. C., Salmè, G., Santiesteban, S. N., Santopinto, E., Sargsian, M., Sato, N., Schadmand, S., Schmidt, A., Schmidt, S. M, Schnell, G., Schumacher, R. A., Schweitzer, P., Scimemi, I., Scott, K. C, Seay, D. A, Segovia, J., Semenov-Tian-Shansky, K., Seryi, A., Sharda, A. S, Shepherd, M. R., Shirokov, E. V., Shrestha, S., Shrestha, U., Shvedunov, V. I., Signori, A., Slifer, K. J., Smith, W. A., Somov, A., Souder, P., Sparveris, N., Spizzo, F., Spreafico, M., Stepanyan, S., Stevens, J. R., Strakovsky, I. I., Strauch, S., Strikman, M., Su, S., Sumner, B. C. L., Sun, E., Suresh, M., Sutera, C., Swanson, E. S., Szczepaniak, A. P, Sznajder, P., Szumila-Vance, H., Szymanowski, L., Tadepalli, A. -S., Tadevosyan, V., Tamang, B., Tarasov, V. V., Thiel, A., Tong, X. -B., Tyson, R., Ungaro, M., Urciuoli, G. M., Usman, A., Valcarce, A., Vallarino, S., Vaquera-Araujo, C. A., Venturelli, L., Vera, F., Vladimirov, A., Vossen, A., Wagner, J., Wei, X., Weinstein, L. B., Weiss, C., Williams, R., Winney, D., Wojtsekhowski, B., Wood, M. H., Xiao, T., Xu, S. -S., Ye, Z., Yero, C., Yuan, C. -P., Yurov, M., Zachariou, N., Zhang, Z., Zhao, Z. W., Zhao, Y., Zheng, X., Zhou, X., Ziegler, V., Zihlmann, B., de Paula, W, and de Téramond, G. F.

Subjects
Nuclear Experiment, High Energy Physics - Experiment, High Energy Physics - Phenomenology, Nuclear Theory
Abstract

This document presents the initial scientific case for upgrading the Continuous Electron Beam Accelerator Facility (CEBAF) at Jefferson Lab (JLab) to 22 GeV. It is the result of a community effort, incorporating insights from a series of workshops conducted between March 2022 and April 2023. With a track record of over 25 years in delivering the world's most intense and precise multi-GeV electron beams, CEBAF's potential for a higher energy upgrade presents a unique opportunity for an innovative nuclear physics program, which seamlessly integrates a rich historical background with a promising future. The proposed physics program encompass a diverse range of investigations centered around the nonperturbative dynamics inherent in hadron structure and the exploration of strongly interacting systems. It builds upon the exceptional capabilities of CEBAF in high-luminosity operations, the availability of existing or planned Hall equipment, and recent advancements in accelerator technology. The proposed program cover various scientific topics, including Hadron Spectroscopy, Partonic Structure and Spin, Hadronization and Transverse Momentum, Spatial Structure, Mechanical Properties, Form Factors and Emergent Hadron Mass, Hadron-Quark Transition, and Nuclear Dynamics at Extreme Conditions, as well as QCD Confinement and Fundamental Symmetries. Each topic highlights the key measurements achievable at a 22 GeV CEBAF accelerator. Furthermore, this document outlines the significant physics outcomes and unique aspects of these programs that distinguish them from other existing or planned facilities. In summary, this document provides an exciting rationale for the energy upgrade of CEBAF to 22 GeV, outlining the transformative scientific potential that lies within reach, and the remarkable opportunities it offers for advancing our understanding of hadron physics and related fundamental phenomena., Comment: Updates to the list of authors; Preprint number changed from theory to experiment; Updates to sections 4 and 6, including additional figures

Published
2023

8. SDR, EVC, and SDREVC: Limitations and Extensions

Author

Hunter, E. D., Amsler, C., Breuker, H., Bumbar, M., Chesnevskaya, S., Costantini, G., Ferragut, R., Giammarchi, M., Gligorova, A., Gosta, G., Higaki, H., Killian, C., Kraxberger, V., Kuroda, N., Lanz, A., Leali, M., Maero, G., Malbrunot, C., Mascagna, V., Matsuda, Y., Mäckel, V., Migliorati, S., Murtagh, D. J., Nanda, A., Nowak, L., Gustafsson, F. Parnefjord, Rheinfrank, S., Romé, M., Simon, M. C., Tajima, M., Toso, V., Ulmer, S., Venturelli, L., Weiser, A., Widmann, E., Yamazaki, Y., and Zmeskal, J.

Subjects
Physics - Plasma Physics
Abstract

Methods for reducing the radius, temperature, and space charge of nonneutral plasma are usually reported for conditions which approximate an ideal Penning Malmberg trap. Here we show that (1) similar methods are still effective under surprisingly adverse circumstances: we perform SDR and SDREVC in a strong magnetic mirror field using only 3 out of 4 rotating wall petals. In addition, we demonstrate (2) an alternative to SDREVC, using e-kick instead of EVC and (3) an upper limit for how much plasma can be cooled to T < 20 K using EVC. This limit depends on the space charge, not on the number of particles or the plasma density., Comment: Version 2: a small discrepancy between the N values for Table 1 and Fig. 3 led to an investigation of the charge counting diagnostic. There is a small energy dependence which only became apparent following improvements to pre-SDREVC. The pulsed dump was modified to reduce this dependence. The data for Table 1 and Fig. 3 was taken again with the improved methods

Published
2023

9. First measurement of hard exclusive $\pi^- \Delta^{++}$ electroproduction beam-spin asymmetries off the proton

Author

Diehl, S., Trotta, N., Joo, K., Achenbach, P., Akbar, Z., Armstrong, W. R., Atac, H., Avakian, H., Baashen, L., Baltzell, N. A., Barion, L., Bashkanov, M., Battaglieri, M., Bedlinskiy, I., Benmokhtar, F., Bianconi, A., Biselli, A. S., Bossu, F., Brinkmann, K. -T., Briscoe, W. J., Bulumulla, D., Burkert, V., Capobianco, R., Carman, D. S., Carvajal, J. C., Celentano, A., Charles, G., Chatagnon, P., Chesnokov, V., Ciullo, G., Cole, P. L., Contalbrigo, M., Costantini, G., Crede, V., D'Angelo, A., Dashyan, N., De Vita, R., Deur, A., Djalali, C., Dupre, R., Ehrhart, M., Alaoui, A. El, Fassi, L. El, Elouadrhiri, L., Fegan, S., Filippi, A., Gavalian, G., Glazier, D. I., Golubenko, A. A., Gosta, G., Gothe, R. W., Gotra, Y., Griffioen, K., Hafidi, K., Hakobyan, H., Hattawy, M., Hayward, T. B., Heddle, D., Hobart, A., Holtrop, M., Illari, I., Ireland, D. G., Isupov, E. L., Jo, H. S., Johnston, R., Keller, D., Khachatryan, M., Khanal, A., Kim, A., Kim, W., Klimenko, V., Kripko, A., Kubarovsky, V., Kuhn, S. E., Lagerquist, V., Lanza, L., Leali, M., Lee, S., Lenisa, P., Li, X., MacGregor, I . J . D., Marchand, D., Mascagna, V., Matousek, G., McKinnon, B., McLauchlin, C., Meziani, Z. E., Migliorati, S., Milner, R. G., Mineeva, T., Mirazita, M., Mokeev, V., Moran, P., Camacho, C. Munoz, Naidoo, P., Neupane, K., Niccolai, S., Niculescu, G., Osipenko, M., Pandey, P., Paolone, M., Pappalardo, L. L., Paremuzyan, R., Paul, S. J., Phelps, W., Pilleux, N., Pokhrel, M., Poudel, J., Price, J. W., Prok, Y., Radic, A., Raue, B. A., Reed, T., Richards, J., Ripani, M., Ritman, J., Rossi, P., Sabatie, F., Salgado, C., Schadmand, S., Schmidt, A., Sharabian, Y. G., Shrestha, U., Sokhan, D., Sparveris, N., Spreafico, M., Stepanyan, S., Strakovsky, I., Strauch, S., Turisini, M., Tyson, R., Ungaro, M., Vallarino, S., Venturelli, L., Voskanyan, H., Voutier, E., Watts, D. P., Wei, X., Williams, R., Wishart, R., Wood, M. H., Yurov, M., Zachariou, N., Zhao, Z. W., and Zurek, M.

Subjects
High Energy Physics - Experiment
Abstract

The polarized cross section ratio $\sigma_{LT'}/\sigma_{0}$ from hard exclusive $\pi^{-} \Delta^{++}$ electroproduction off an unpolarized hydrogen target has been extracted based on beam-spin asymmetry measurements using a 10.2 GeV / 10.6 GeV incident electron beam and the CLAS12 spectrometer at Jefferson Lab. The study, which provides the first observation of this channel in the deep-inelastic regime, focuses on very forward-pion kinematics in the valence regime, and photon virtualities ranging from 1.5 GeV$^{2}$ up to 7 GeV$^{2}$. The reaction provides a novel access to the $d$-quark content of the nucleon and to $p \rightarrow \Delta^{++}$ transition generalized parton distributions. A comparison to existing results for hard exclusive $\pi^{+} n$ and $\pi^{0} p$ electroproduction is provided, which shows a clear impact of the excitation mechanism, encoded in transition generalized parton distributions, on the asymmetry.

Published
2023
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10. A new direct detection electron scattering experiment to search for the X17 particle

Author

Dutta, D., Gao, H., Gasparian, A., Hague, T. J., Liyanage, N., Paremuzyan, R., Peng, C., Xiong, W., Achenbach, P., Ahmidouch, A., Ali, S., Avakian, H., Ayerbe-Gayoso, C., Bai, X., Battaglieri, M., Bhatt, H., Bianconi, A., Boyd, J., Byer, D., Cole, P. L., Costantini, G., Davis, S., De Napoli, M., De Vita, R., Devkota, B., Dharmasena, B., Dunne, J., Fassi, L. El, Gamage, V., Gan, L., Gnanvo, K., Gosta, G., Higinbotham, D., Howell, C., Jeffas, S., Jian, S., Karki, A., Karki, B., Khachatryan, V., Khandaker, M., Kubarovsky, V., Larin, I., Leali, M., Mascagna, V., Matousek, G., Migliorati, S., Miskimen, R., Mohanmurthy, P., Nguyen, H., Pasyuk, E., Rathnayake, A., West, J. Rittenhouse, Shahinyan, A., Smith, A., Stepanyan, S., van Nieuwenhuizen, E., Venturelli, L., Yu, B., Zhao, Z., and Zhou, J.

Subjects
Nuclear Experiment
Abstract

A new electron scattering experiment (E12-21-003) to verify and understand the nature of hidden sector particles, with particular emphasis on the so-called X17 particle, has been approved at Jefferson Lab. The search for these particles is motivated by new hidden sector models introduced to account for a variety of experimental and observational puzzles: excess in $e^+e^-$ pairs observed in multiple nuclear transitions, the 4.2$\sigma$ disagreement between experiments and the standard model prediction for the muon anomalous magnetic moment, and the small-scale structure puzzle in cosmological simulations. The aforementioned X17 particle has been hypothesized to account for the excess in $e^+e^-$ pairs observed from the $^8$Be M1, $^4$He M0, and, most recently, $^{12}$C E1 nuclear transitions to their ground states observed by the ATOMKI group. This experiment will use a high resolution electromagnetic calorimeter to search for or set new limits on the production rate of the X17 and other hidden sector particles in the $3 - 60$ MeV mass range via their $e^+e^-$ decay (or $\gamma\gamma$ decay with limited tracking). In these models, the $1 - 100$ MeV mass range is particularly well-motivated and the lower part of this range still remains unexplored. Our proposed direct detection experiment will use a magnetic-spectrometer-free setup (the PRad apparatus) to detect all three final state particles in the visible decay of a hidden sector particle for an effective control of the background and will cover the proposed mass range in a single setting. The use of the well-demonstrated PRad setup allows for an essentially ready-to-run and uniquely cost-effective search for hidden sector particles in the $3 - 60$ MeV mass range with a sensitivity of 8.9$\times$10$^{-8}$ - 5.8$\times$10$^{-9}$ to $\epsilon^2$, the square of the kinetic mixing interaction constant between hidden and visible sectors., Comment: 6 pages, 7 figures. arXiv admin note: substantial text overlap with arXiv:2108.13276

Published
2023

11. First CLAS12 measurement of DVCS beam-spin asymmetries in the extended valence region

Author

CLAS Collaboration, Christiaens, G., Defurne, M., Sokhan, D., Achenbach, P., Akbar, Z., Amaryan, M. J., Atac, H., Avakian, H., Gayoso, C. Ayerbe, Baashen, L., Baltzell, N. A., Barion, L., Bashkanov, M., Battaglieri, M., Bedlinskiy, I., Benkel, B., Benmokhtar, F., Bianconi, A., Biselli, A. S., Bondi, M., Booth, W. A., Bossù, F., Boiarinov, S., Brinkmann, K. -Th., Briscoe, W. J., Bueltmann, S., Bulumulla, D., Burkert, V. D., Cao, T., Carman, D. S., Carvajal, J. C., Celentano, A., Chatagnon, P., Chesnokov, V., Chetry, T., Ciullo, G., Clash, G., Cole, P. L., Contalbrigo, M., Costantini, G., D'Angelo, A., Dashyan, N., De Vita, R., Deur, A., Diehl, S., Dilks, C., Djalali, C., Dupre, R., Egiyan, H., Ehrhart, M., Alaoui, A. El, Fassi, L. El, Elouadrhiri, L., Fegan, S., Filippi, A., Gates, K., Gavalian, G., Ghandilyan, Y., Gilfoyle, G. P., Girod, F. X., Glazier, D. I., Golubenko, A. A., Gosta, G., Gothe, R. W., Gotra, Y., Griffioen, K. A., Guidal, M., Hafidi, K., Hakobyan, H., Hattawy, M., Hauenstein, F., Hayward, T. B., Heddle, D., Hobart, A., Holmberg, D. E., Holtrop, M., Ilieva, Y., Ireland, D. G., Isupov, E. L., Jo, H. S., Kabir, M. L., Keller, D., Khachatryan, M., Khanal, A., Kim, W., Kripko, A., Kubarovsky, V., Kuhn, S. E., Lagerquist, V., Lanza, L., Leali, M., Lee, S., Lenisa, P., Li, X., Livingston, K., MacGregor, I . J . D., Marchand, D., Mascagna, V., Matousek, G., McKinnon, B., McLauchlin, C., Meziani, Z. E., Migliorati, S., Milner, R. G., Mineeva, T., Mirazita, M., Mokeev, V., Molina, E., Camacho, C. Munoz, Nadel-Turonski, P., Naidoo, P., Neupane, K., Niccolai, S., Nicol, M., Niculescu, G., Osipenko, M., Ouillon, M., Pandey, P., Paolone, M., Pappalardo, L. L., Paremuzyan, R., Pasyuk, E., Paul, S. J., Phelps, W., Pilleux, N., Pokhrel, M., Poudel, J., Price, J. W., Prok, Y., Radic, A., Ramasubramanian, N., Raue, B. A., Reed, T., Richards, J., Ripani, M., Ritman, J., Rossi, P., Sabatié, F., Salgado, C., Schadmand, S., Schmidt, A., Scott, M. B. C., Sharabian, Y. G., Shirokov, E. V., Shrestha, U., Simmerling, P., Sparveris, N., Spreafico, M., Stepanyan, S., Strakovsky, I. I., Strauch, S., Tan, J. A., Trotta, N., Turisini, M., Tyson, R., Ungaro, M., Vallarino, S., Venturelli, L., Voskanyan, H., Voutier, E., Watts, D. P., Wei, X., Williams, R., Wishart, R., Wood, M. H., Zachariou, N., Zhang, J., Zhao, Z. W., Ziegler, V., and Zurek, M.

Subjects
High Energy Physics - Experiment
Abstract

Deeply virtual Compton scattering (DVCS) allows one to probe Generalized Parton Distributions (GPDs) describing the 3D structure of the nucleon. We report the first measurement of the DVCS beam-spin asymmetry using the CLAS12 spectrometer with a 10.2 and 10.6 GeV electron beam scattering from unpolarised protons. The results greatly extend the $Q^2$ and Bjorken-$x$ phase space beyond the existing data in the valence region and provide over 2000 new data points measured with unprecedented statistical uncertainty, setting new, tight constraints for future phenomenological studies., Comment: Revised Figure 4 and discussion around the number of effective ANNs after Bayesian reweighting

Published
2022

12. A multidimensional study of the structure function ratio $\sigma_{LT'}/\sigma_{0}$ from hard exclusive $\pi^+$ electro-production off protons in the GPD regime

Author

Diehl, S., Kim, A., Joo, K., Achenbach, P., Akbar, Z., Amaryan, M. J., Atac, H., Avagyan, H., Gayoso, C. Ayerbe, Baashen, L., Barion, L., Bashkanov, M., Battaglieri, M., Bedlinskiy, I., Benkel, B., Benmokhtar, F., Bianconi, A., Biselli, A. S., Bondi, M., Booth, W. A., Bossu, F., Boiarinov, S., Brinkmann, K. -Th., Briscoe, W. J., Bueltmann, S., Bulumulla, D., Burkert, V. D., Carman, D. S., Celentano, A., Chatagnon, P., Chesnokov, V., Chetry, T., Ciullo, G., Clash, G., Cole, P. L., Contalbrigo, M., Costantini, G., D'Angelo, A., Dashyan, N., De Vita, R., Defurne, M., Deur, A., Djalali, C., Dupre, R., Egiyan, H., Ehrhart, M., Alaoui, A. El, Fassi, L. El, Elouadrhiri, L., Fegan, S., Filippi, A., Gavalian, G., Ghandilyan, Y., Gilfoyle, G. P., Glazier, D. I., Golubenko, A. A., Gosta, G., Gothe, R. W., Gotra, Y., Grifoen, K. A., Guidal, M., Hafdi, K., Hakobyan, H., Hattawy, M., Hayward, T. B., Heddle, D., Hobart, A., Holtrop, M., Ilieva, Y., Ireland, D. G., Isupov, E. L., Jo, H. S., Khachatryan, M., Khanal, A., Kim, W., Kripko, A., Kubarovsky, V., Lagerquist, V., Laget, J. -M., Lanza, L., Leali, M., Lee, S., Lenisa, P., Li, X., Livingston, K., MacGregor, I . J. D., Marchand, D., Mascagna, V., McKinnon, B., Meziani, Z. E., Migliorati, S., Mineeva, T., Mirazita, M., Mokeev, V., Molina, Esteban, Montgomery, R. A., Camacho, C. Munoz, Nadel-Turonski, P., Naidoo, P., Neupane, K., Niccolai, S., Nicol, M., Niculescu, G., Osipenko, M., Ouillon, M., Pandey, P., Paolone, M., Pappalardo, L. L., Paremuzyan, R., Pasyuk, E., Paul, S. J., Phelps, W., Pilleux, N., Pokhrel, M., Poudel, J., Price, J. W., Prok, Y., Reed, Trevor, Richards, J., Ripani, M., Ritman, J., Rossi, P., Sabatie, F., Salgado, C., Schadmand, S., Schmidt, A., Sharabian, Y., Shirokov, E. V., Shrestha, U., Simmerling, P., Sokhan, D., Sparveris, N., Spreafco, M., Stepanyan, S., Strakovsky, I. I., Strauch, S., Tan, J. A., Trotta, N., Turisini, M., Tyson, R., Ungaro, M., Vallarino, S., Venturelli, L., Voskanyan, H., Voutier, E., Watts, D. P., Wei, X., Williams, R., Wishart, R., Wood, M. H., Zachariou, N., Zhang, J., Zhao, Z. W., and Zurek, M.

Subjects
High Energy Physics - Experiment
Abstract

A multidimensional extraction of the structure function ratio $\sigma_{LT'}/\sigma_{0}$ from the hard exclusive $\vec{e} p \to e^\prime n \pi^+$ reaction above the resonance region has been performed. The study was done based on beam-spin asymmetry measurements using a 10.6 GeV incident electron beam on a liquid-hydrogen target and the CLAS12 spectrometer at Jefferson Lab. The measurements focus on the very forward regime ($t/Q^{2}$ $\ll$ 1) with a wide kinematic range of $x_{B}$ in the valence regime (0.17 $<$ $x_{B}$ $<$ 0.55), and virtualities $Q^{2}$ ranging from 1.5 GeV$^{2}$ up to 6 GeV$^{2}$. The results and their comparison to theoretical models based on Generalized Parton Distributions demonstrate the sensitivity to chiral-odd GPDs and the directly related tensor charge of the nucleon. In addition, the data is compared to an extension of a Regge formalism at high photon virtualities. It was found that the Regge model provides a better description at low $Q^{2}$, while the GPD model is more appropriate at high $Q^{2}$., Comment: arXiv admin note: text overlap with arXiv:2007.15677

Published
2022
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13. First Measurement of $\Lambda$ Electroproduction off Nuclei in the Current and Target Fragmentation Regions

Author

Chetry, T., Fassi, L. El, Brooks, W. K., Dupré, R., Alaoui, A. El, Hafidi, K., Achenbach, P., Adhikari, K. P., Akbar, Z., Armstrong, W. R., Arratia, M., Atac, H., Avakian, H., Baashen, L., Baltzell, N. A., Barion, L., Bashkanov, M., Battaglieri, M., Bedlinskiy, I., Benkel, B., Benmokhtar, F., Bianconi, A., Biselli, A. S., Bondi, M., Booth, W. A., Bossù, F., Boiarinov, S., Brinkmann, K. -Th., Briscoe, W. J., Bulumulla, D., Burkert, V. D., Carman, D. S., Carvajal, J. C., Celentano, A., Chatagnon, P., Chesnokov, V., Ciullo, G., Cole, P. L., Contalbrigo, M., Costantini, G., D'Angelo, A., Dashyan, N., De Vita, R., Defurne, M., Deur, A., Diehl, S., Djalali, C., Egiyan, H., Elouadrhiri, L., Eugenio, P., Fegan, S., Filippi, A., Gavalian, G., Ghandilyan, Y., Gilfoyle, G. P., Glazier, D. I., Golubenko, A. A., Gosta, G., Gothe, R. W., Griffioen, K. A., Guidal, M., Guo, L., Hakobyan, H., Hattawy, M., Hayward, T. B., Heddle, D., Hobart, A., Holtrop, M., Ilieva, Y., Ireland, D. G., Isupov, E. L., Jenkins, D., Jo, H. S., Kabir, M. L., Khanal, A., Khandaker, M., Kim, A., Kim, W., Klein, F. J., Kripko, A., Kubarovsky, V., Lagerquist, V., Lanza, L., Leali, M., Lee, S., Lenisa, P., Li, X., Livingston, K., MacGregor, I. J. D., Marchand, D., Mascagna, V., McKinnon, B., McLauchlin, C., Meziani, Z. E., Migliorati, S., Mineeva, T., Mirazita, M., Mokeev, V., Camacho, C. Munoz, Nadel-Turonski, P., Neupane, K., Niccolai, S., Nicol, M., Niculescu, G., Osipenko, M., Ostrovidov, A. I., Pandey, P., Paolone, M., Pappalardo, L. L., Paremuzyan, R., Pasyuk, E., Paul, S. J., Phelps, W., Pilleux, N., Pokhrel, M., Poudel, J., Price, J. W., Prok, Y., Raue, B. A., Reed, T., Richards, J., Ripani, M., Ritman, J., Rosner, G., Sabatié, F., Salgado, C., Schadmand, S., Schmidt, A., Schumacher, R. A., Sharabian, Y. G., Shirokov, E. V., Shrestha, U., Simmerling, P., Sokhan, D., Sparveris, N., Stepanyan, S., Strakovsky, I. I., Strauch, S., Tan, J. A., Trotta, N., Tyson, R., Ungaro, M., Vallarino, S., Venturelli, L., Voskanyan, H., Voutier, E., Wei, X., Weinstein, L. B., Williams, R., Wishart, R., Wood, M. H., Zachariou, N., Zhao, Z. W., and Zurek, M.

Subjects
Nuclear Experiment, High Energy Physics - Experiment
Abstract

We report results of $\Lambda$ hyperon production in semi-inclusive deep-inelastic scattering off deuterium, carbon, iron, and lead targets obtained with the CLAS detector and the Continuous Electron Beam Accelerator Facility 5.014~GeV electron beam. These results represent the first measurements of the $\Lambda$ multiplicity ratio and transverse momentum broadening as a function of the energy fraction~($z$) in the current and target fragmentation regions. The multiplicity ratio exhibits a strong suppression at high~$z$~and~an enhancement at~low~$z$. The measured transverse momentum broadening is an order of magnitude greater than that seen for light mesons. This indicates that the propagating entity interacts very strongly with the nuclear medium, which suggests that propagation of diquark configurations in the nuclear medium takes place at least part of the time, even at high~$z$. The trends of these results are qualitatively described by the Giessen Boltzmann-Uehling-Uhlenbeck transport model, particularly for the multiplicity ratios. These observations will potentially open a new era of studies of the structure of the nucleon as well as of strange baryons., Comment: 14 pages, 6 figures

Published
2022
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14. Donor-acceptor co-adsorption ratio controls structure and electronic properties of two-dimensional alkali-organic networks on Ag(100)

Author

Sohail, B., Blowey, P. J., Rochford, L. A., Ryan, P. T. P., Duncan, D. A., Lee, T. -L., Starrs, P., Costantini, G., Woodruff, D. P., and Maurer, R. J.

Subjects
Condensed Matter - Materials Science
Abstract

The results are presented of a detailed combined experimental and theoretical investigation of the influence of coadsorbed electron-donating alkali atoms and the prototypical electron acceptor molecule TCNQ (7,7,8,8-tetracyanoquinodimethane) on the Ag(100) surface. Several coadsorption phases were characterised by scanning tunnelling microscopy, low energy electron diffraction, and soft-X-ray photoelectron spectroscopy. Quantitative structural data were obtained using normal incidence X-ray standing wave (NIXSW) measurements and compared with the results of density functional theory (DFT) calculations using several different methods of dispersion correction. Generally good agreement between theory and experiment was achieved for the quantitative structures, albeit with prediction of the alkali atom heights being challenging for some methods. The adsorption structures depend sensitively on the interplay of molecule-metal charge transfer and long-range dispersion forces, which are controlled by the composition ratio between alkali atoms and TCNQ. The large difference in atomic size between K and Cs has negligible effects on stability, whereas increasing the ratio of K:TCNQ from 1:4 to 1:1 leads to a weakening of molecule-metal interaction strength in favour of stronger ionic bonds within the two-dimensional alkali-organic network. A strong dependence of the work function on the alkali donor-TCNQ acceptor co-adsorption ratio is predicted., Comment: 42 pages

Published
2022

15. First observation of correlations between spin and transverse momenta in back-to-back dihadron production at CLAS12

Author

Avakian, H., Hayward, T. B., Kotzinian, A., Armstrong, W. R., Atac, H., Gayoso, C. Ayerbe, Baashen, L., Baltzell, N. A., Barion, L., Bashkanov, M., Battaglieri, M., Bedlinskiy, I., Benmokhtar, F., Bianconi, A., Biondo, L., Biselli, A. S., Bondi, M., Boiarinov, S., Bossù, F., Brinkman, K. T., Briscoe, W. J., Brooks, W. K., Bueltmann, S., Bulumulla, D., Burkert, V. D., Capobianco, R., Carman, D. S., Carvajal, J. C., Celentano, A., Chatagnon, P., Chesnokov, V., Chetry, T., Ciullo, G., Cole, P. L., Contalbrigo, M., Costantini, G., D'Angelo, A., Dashyan, N., De Vita, R., Defurne, M., Deur, A., Diehl, S., Dilks, C., Djalali, C., Dupre, R., Egiyan, H., Alaoui, A. El, Fassi, L. El, Elouadrhiri, L., Fegan, S., Filippi, A., Forest, T., Gates, K., Gavalian, G., Gilyan, Y., Glazier, D. I., Golubenko, A. A., Gosta, G., Gothe, R. W., Gotra, Y., Griffioen, K. A., Guidal, M., Hakobyan, H., Hattawy, M., Hauenstein, F., Heddle, D., Hobart, A., Holtrop, M., Hyde, C. E., Ilieva, Y., Ire, D. G., Isupov, E. L., Jo, H. S., Johnston, R., Joo, K., Kabir, M. L., Keller, D., Khachatryan, M., Khanal, A., Kim, A., Kim, W., Klimenko, V., Kripko, A., Kubarovsky, V., Kuhn, S. E., Lagerquist, V., Lanza, L., Leali, M., Lee, S., Lenisa, P., Li, X., MacGregor, I . J . D., Marc, D., Mascagna, V., McKinnon, B., Migliorati, S., Mineeva, T., Mirazita, M., Mokeev, V., Montgomery, R. A., Camacho, C. Munoz, Nadel-Turonski, P., Naidoo, P., Neupane, K., Nguyen, D., Niccolai, S., Nicol, M., Niculescu, G., Osipenko, M., Pandey, P., Paolone, M., Pappalardo, L. L., Paremuzyan, R., Pasyuk, E., Paul, S. J., Phelps, W., Pilleux, N., Pogorelko, O., Pokhrel, M., Poudel, J., Price, J. W., Prok, Y., Raue, B. A., Reed, T., Richards, J., Ripani, M., Ritman, J., Rossi, P., Sabatié, F., Salgado, C., Schmidt, A., Sharabian, Y. G., Shirokov, E. V., Shrestha, U., Simmerling, P., Sokhan, D., Sparveris, N., Stepanyan, S., Strakovsky, I. I., Strauch, S., Tan, J. A., Trotta, N., Tyson, R., Ungaro, M., Vallarino, S., Venturelli, L., Voskanyan, H., Vossen, A., Voutier, E., Watts, D. P., Wei, X., Wishart, R., Wood, M. H., Zachariou, N., Zhao, Z. W., and Zurek, M.

Subjects
High Energy Physics - Experiment, Nuclear Experiment
Abstract

We report the first measurements of deep inelastic scattering spin-dependent azimuthal asymmetries in back-to-back dihadron electroproduction, where two hadrons are produced in opposite hemispheres along the z-axis in the center-of-mass frame, with the first hadron produced in the current-fragmentation region and the second in the target-fragmentation region. The data were taken with longitudinally polarized electron beams of 10.2 and 10.6 GeV incident on an unpolarized liquid-hydrogen target using the CLAS12 spectrometer at Jefferson Lab. Observed non-zero $\sin\Delta\phi$ modulations in $ep \rightarrow e'p\pi^+X$ events, where $\Delta\phi$ is the difference of the azimuthal angles of the proton and pion in the virtual photon and target nucleon center-of-mass frame, indicate that correlations between the spin and transverse momenta of hadrons produced in the target- and current-fragmentation regions may be significant. The measured beam-spin asymmetries provide a first access in dihadron production to a previously unobserved leading-twist spin- and transverse-momentum-dependent fracture function. The fracture functions describe the hadronization of the target remnant after the hard scattering of a virtual photon off a quark in the target particle and provide a new avenue for studying nucleonic structure and hadronization., Comment: 7 pages, 6 figures

Published
2022
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16. Alignment of the CLAS12 central hybrid tracker with a Kalman Filter

Author

Paul, S. J., Peck, A., Arratia, M., Gotra, Y., Ziegler, V., De Vita, R., Bossu, F., Defurne, M., Atac, H., Gayoso, C. Ayerbe, Baashen, L., Baltzell, N. A., Barion, L., Bashkanov, M., Battaglieri, M., Bedlinskiy, I., Benkel, B., Benmokhtar, F., Bianconi, A., Biondo, L., Biselli, A. S., Bondi, M., Boiarinov, S., Brinkmann, K. Th., Briscoe, W. J., Brooks, W. K., Bulumulla, D., Burkert, V. D., Capobianco, R., Carman, D. S., Carvajal, J. C., Chatagnon, P., Chesnokov, V., Chetry, T., Ciullo, G., Cole, P. L., Costantini, G., Angelo, A. D, Dashyan, N., Deur, A., Diehl, S., Djalali, C., Dupre, R., Alaoui, A. El, Fassi, L. El, Elouadrhiri, L., Filippi, A., Gates, K., Gavalian, G., Ghandilyan, Y., Gilfoyle, G. P., Golubenko, A. A., Gosta, G., Gothe, R. W., Griffioen, K., Guidal, M., Hakobyan, H., Hattawy, M., Hauenstein, F., Hayward, T. B., Heddle, D., Hobart, A., Holtrop, M., Ilieva, Y., Ireland, D. G., Isupov, E. L., Jo, H. S., Johnston, R., Joo, K., Keller, D., Khachatryan, M., Khanal, A., Kim, A., Kim, W., Klimenko, V., Kripko, A., Lanza, L., Leali, M., Lenisa, P., Li, X., MacGregor, I. J. D., Marchand, D., Marsicano, L., Mascagna, V., McKinnon, B., McLauchlin, C., Migliorati, S., Mineeva, T., Mirazita, M., Mokeev, V., Camacho, C. Munoz, Nadel-Turonski, P., Naidoo, P., Neupane, K., Nguyen, D., Niccolai, S., Nicol, M., Niculescu, G., Osipenko, M., Pandey, P., Paolone, M., Paremuzyan, R., Pilleux, N., Pogorelko, O., Pokhrel, M., Poudel, J., Price, J. W., Prok, Y., Reed, T., Ripani, M., Ritman, J., Sabatie, F., Schadmand, S., Schmidt, A., Shirokov, E. V., Shrestha, U., Simmerling, P., Spreafico, M., Sokhan, D., Sparveris, N., Strakovsky, I. I., Strauch, S., Tan, J. A., Tyson, R., Ungaro, M., Vallarino, S., Venturelli, L., Voskanyan, H., Voutier, E., Watts, D. P., Wei, X., Wishart, R., Wood, M. H., and Zachariou, N.

Subjects
Physics - Instrumentation and Detectors, High Energy Physics - Experiment, Nuclear Experiment
Abstract

Several factors can contribute to the difficulty of aligning the sensors of tracking detectors, including a large number of modules, multiple types of detector technologies, and non-linear strip patterns on the sensors. All three of these factors apply to the CLAS12 CVT, which is a hybrid detector consisting of planar silicon sensors with non-parallel strips, and cylindrical micromegas sensors with longitudinal and arc-shaped strips located within a 5~T superconducting solenoid. To align this detector, we used the Kalman Alignment Algorithm, which accounts for correlations between the alignment parameters without requiring the time-consuming inversion of large matrices. This is the first time that this algorithm has been adapted for use with hybrid technologies, non-parallel strips, and curved sensors. We present the results for the first alignment of the CLAS12 CVT using straight tracks from cosmic rays and from a target with the magnetic field turned off. After running this procedure, we achieved alignment at the level of 10~$\mu$m, and the widths of the residual spectra were greatly reduced. These results attest to the flexibility of this algorithm and its applicability to future use in the CLAS12 CVT and other hybrid or curved trackers, such as those proposed for the future Electron-Ion Collider.

Published
2022
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17. Observation of azimuth-dependent suppression of hadron pairs in electron scattering off nuclei

Author

Paul, S. J., Moran, S., Arratia, M., Alaoui, A. El, Hakobyan, H., Brooks, W., Amaryan, M. J., Armstrong, W. R., Atac, H., Baashen, L., Baltzell, N. A., Barion, L., Bashkanov, M., Battaglieri, M., Bedlinskiy, I., Benkel, B., Benmokhtar, F., Bianconi, A., Biondo, L., Biselli, A. S., Bondi, M., Bossu, F., Boiarinov, S., Brinkmann, K. Th., Briscoe, W. J., Bulumulla, D., Burkert, V. D., Capobianco, R., Carman, D. S., Celentano, A., Chesnokov, V., Chetry, T., Ciullo, G., Cole, P. L., Contalbrigo, M., Costantini, G., D'Angelo, A., Dashyan, N., De Vita, R., Defurne, M., Deur, A., Diehl, S., Dilks, C., Djalali, C., Dupre, R., Egiyan, H., Fassi, L. El, Eugenio, P., Fegan, S., Filippi, A., Gavalian, G., Ghandilyan, Y., Gilfoyle, G. P., Golubenko, A. A., Gosta, G., Gothe, R. W., Griffioen, K. A., Guidal, M., Hattawy, M., Hayward, T. B., Heddle, D., Hobart, A., Holtrop, M., Ilieva, Y., Ireland, D. G., Isupov, E. L., Jo, H. S., Johnston, R., Joo, K., Joosten, S., Keller, D., Khanal, A., Khandaker, M., Kim, W., Kripko, A., Kubarovsky, V., Lagerquist, V., Lanza, L., Leali, M., Lee, S., Lenisa, P., Li, X., Livingston, K., MacGregor, I. J. D., Marchand, D., Mascagna, V., McKinnon, B., Meziani, Z. E., Migliorati, S., Milner, R. G., Mineeva, T., Mirazita, M., Mokeev, V. I., Moran, P., Camacho, C. Munoz, Neupane, K., Nguyen, D., Niccolai, S., Niculescu, G., Osipenko, M., Ostrovidov, A. I., Pandey, P., Paolone, M., Pappalardo, L. L., Paremuzyan, R., Pasyuk, E., Phelps, W., Pilleux, N., Pocanic, D., Pogorelko, O., Pokhrel, M., Poudel, J., Price, J. W., Prok, Y., Raue, B. A., Reed, T., Ripani, M., Rosner, G., Sabatie, F., Salgado, C., Schmidt, A., Schumacher, R. A., Sharabian, Y. G., Shirokov, E. V., Shrestha, U., Simmerling, P., Sokhan, D., Sparveris, N., Stepanyan, S., Strakovsky, I. I., Strauch, S., Tan, J. A., Tyson, R., Ungaro, M., Vallarino, S., Venturelli, L., Voskanyan, H., Voutier, E., Wei, X., Wishart, R., Wood, M. H., Zachariou, N., Zhao, Z. W., Ziegler, V., and Zurek, M.

Subjects
Nuclear Experiment
Abstract

We present the first measurement of di-hadron angular correlations in electron-nucleus scattering. The data were taken with the CLAS detector and a 5.0 GeV electron beam incident on deuterium, carbon, iron, and lead targets. Relative to deuterium, the nuclear yields of charged-pion pairs show a strong suppression for azimuthally opposite pairs, no suppression for azimuthally nearby pairs, and an enhancement of pairs with large invariant mass. These effects grow with increased nuclear size. The data are qualitatively described by the GiBUU model, which suggests that hadrons form near the nuclear surface and undergo multiple-scattering in nuclei. These results show that angular correlation studies can open a new way to elucidate how hadrons form and interact inside nuclei, Comment: 6 pages, 4 figures

Published
2022
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18. A new direct detection electron scattering experiment to search for the X17 particle

Author

Dutta, D, Gao, H, Gasparian, A, Hague, TJ, Liyanage, N, Paremuzyan, R, Peng, C, Xiong, W, Achenbach, P, Ahmidouch, A, Ali, S, Avakian, H, Ayerbe-Gayoso, C, Bai, X, Battaglieri, M, Bhatt, H, Bianconi, A, Boyd, J, Byer, D, Cole, PL, Costantini, G, Davis, S, Napoli, M De, Vita, R De, Devkota, B, Dharmasena, B, Dunne, J, Fassi, L El, Gamage, V, Gan, L, Gnanvo, K, Gosta, G, Higinbotham, D, Howell, C, Jeffas, S, Jian, S, Karki, A, Karki, B, Khachatryan, V, Khandaker, M, Kubarovsky, V, Larin, I, Leali, M, Mascagna, V, Matousek, G, Migliorati, S, Miskimen, R, Mohanmurthy, P, Nguyen, H, Pasyuk, E, Rathnayake, A, West, J Rittenhouse, Shahinyan, A, Smith, A, Stepanyan, S, Nieuwenhuizen, E van, Venturelli, L, Yu, B, Zhao, Z, and Zhou, J

Subjects
nucl-ex
Abstract

A new electron scattering experiment (E12-21-003) to verify and understandthe nature of hidden sector particles, with particular emphasis on theso-called X17 particle, has been approved at Jefferson Lab. The search forthese particles is motivated by new hidden sector models introduced to accountfor a variety of experimental and observational puzzles: excess in $e^+e^-$pairs observed in multiple nuclear transitions, the 4.2$\sigma$ disagreementbetween experiments and the standard model prediction for the muon anomalousmagnetic moment, and the small-scale structure puzzle in cosmologicalsimulations. The aforementioned X17 particle has been hypothesized to accountfor the excess in $e^+e^-$ pairs observed from the $^8$Be M1, $^4$He M0, and,most recently, $^{12}$C E1 nuclear transitions to their ground states observedby the ATOMKI group. This experiment will use a high resolution electromagneticcalorimeter to search for or set new limits on the production rate of the X17and other hidden sector particles in the $3 - 60$ MeV mass range via their$e^+e^-$ decay (or $\gamma\gamma$ decay with limited tracking). In thesemodels, the $1 - 100$ MeV mass range is particularly well-motivated and thelower part of this range still remains unexplored. Our proposed directdetection experiment will use a magnetic-spectrometer-free setup (the PRadapparatus) to detect all three final state particles in the visible decay of ahidden sector particle for an effective control of the background and willcover the proposed mass range in a single setting. The use of thewell-demonstrated PRad setup allows for an essentially ready-to-run anduniquely cost-effective search for hidden sector particles in the $3 - 60$ MeVmass range with a sensitivity of 8.9$\times$10$^{-8}$ - 5.8$\times$10$^{-9}$ to$\epsilon^2$, the square of the kinetic mixing interaction constant betweenhidden and visible sectors.

Published
2023

19. Upgrade of ASACUSA's Antihydrogen Detector

Author

Kraxberger, V., Amsler, C., Breuker, H., Chesnevskaya, S., Costantini, G., Ferragut, R., Giammarchi, M., Gligorova, A., Gosta, G., Higaki, H., Hunter, E. D., Killian, C., Kletzl, V., Kuroda, N., Lanz, A., Leali, M., Mäckel, V., Maero, G., Malbrunot, C., Mascagna, V., Matsuda, Y., Migliorati, S., Murtagh, D. J., Nagata, Y., Nanda, A., Nowak, L., Pasino, E., Romé, M., Simon, M. C., Tajima, M., Toso, V., Ulmer, S., Venturelli, L., Weiser, A., Widmann, E., Wolz, T., Yamazaki, Y., and Zmeskal, J.

Subjects
Physics - Instrumentation and Detectors, Nuclear Experiment
Abstract

The goal of the ASACUSA (Atomic Spectroscopy And Collisions Using Slow Antiprotons) CUSP experiment at CERN's Antiproton Decelerator is to measure the ground state hyperfine splitting of antihydrogen in order to test whether CPT invariance is broken. The ASACUSA hodoscope is a detector consisting of two layers of 32 plastic scintillator bars individually read out by two serially connected silicon photo multipliers (SiPMs) on each end. Two additional layers for position resolution along the beam axis were scintillator fibres, which will now be replaced by scintillating tiles placed onto the existing bars and also read out by SiPMs. If the antiproton of antihydrogen annihilates in the center of the hodoscope, particles (mostly pions) are produced and travel through the various layers of the detector and produce signals. The hodoscope was successfully used during the last data taking period at CERN. The necessary time resolution to discriminate between particles travelling through the detector from outside and particles produced in the center of the detector was achieved by the use of waveform digitisers and software constant fraction discrimination. The disadvantage of this readout scheme was the slow readout speed, which was improved by two orders of magnitude. This was done by omitting the digitisers and replacing them with TDCs reading out the digital time-over-threshold (ToT) signal using leading edge discrimination., Comment: Submitted to VCI2022 Proceedings in NIM A

Published
2022
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20. Exclusive $\pi^{-}$ Electroproduction off the Neutron in Deuterium in the Resonance Region

Author

Tian, Y., Gothe, R. W., Mokeev, V. I., Hollis, G., Amaryan, M. J., Armstrong, W. R., Atac, H., Avakian, H., Barion, L., Battaglieri, M., Bedlinskiy, I., Benkel, B., Benmokhtar, F., Bianconi, A., Biondo, L., Biselli, A., Bossù, F., Boiarinov, S., Bondì, M., Brinkmann, K. T., Briscoe, W. J., Bueltmann, S., Bulumulla, D., Burkert, V. D., Capobianco, R., Carman, D. S., Carvajal, J. C., Celentano, A., Chesnokov, V., Chetry, T., Ciullo, G., Clash, G., Cole, P. L., Contalbrigo, M., Costantini, G., D'Angelo, A., Dashyan, N., De Vita, R., Defurne, M., Deur, A., Diehl, S., Djalali, C., Dupre, R., Egiyan, H., Alaoui, A. El, Fassi, L. El, Elouadrhiri, L., Eugenio, P., Fegan, S., Filippi, A., Gavalian, G., Gilfoyle, G. P., Girod, F. X., Golubenko, A. A., Gosta, G., Griffioen, K., Guidal, M., Hakobyan, H., Hattawy, M., Hayward, T. B., Hobart, A., Holtrop, M., Ilieva, Y., Ireland, D. G., Isupov, E. L., Jenkins, D., Jo, H. S., Joo, K., Joosten, S., Keller, D., Khanal, A., Khandaker, M., Kim, A., Kim, W., Klein, F. J., Kripko, A., Kubarovsky, V., Lagerquist, V., Lanza, L., Leali, M., Lenisa, P., Livingston, K., MacGregor, I. . J . D., Marchand, D., Marsicano, L., Mascagna, V., McKinnon, B., Migliorati, S., Mineeva, T., Mirazita, M., Camacho, C. Munoz, Nadel-Turonski, P., Naidoo, P., Neupane, K., Newton, J., Niccolai, S., Nicol, M., Niculescu, G., Osipenko, M., Pandey, P., Paolone, M., Pappalardo, L. L., Paremuzyan, R., Park, K., Pasyuk, E., Paul, S. J., Phelps, W., Pilleux, N., Počanić, D., Pogorelko, O., Poudel, J., Price, J. W., Prok, Y., Reed, T., Ripani, M., Ritman, J., Rizzo, A., Rosner, G., Sabatié, F., Salgado, C., Schadmand, S., Schmidt, A., Schumacher, R. A., Shirokov, E. V., Shrestha, U., Simmerling, P., Sokhan, D., Sparveris, N., Stepanyan, S., Strakovsky, I. I., Strauch, S., Tyson, R., Ungaro, M., Venturelli, L., Voskanyan, H., Voutier, E., Watts, D. P., Wei, K., Wei, X., Wood, M. H., Yale, B., Zachariou, N., and Zhang, J.

Subjects
Nuclear Experiment
Abstract

New results for the exclusive and quasi-free cross sections off neutrons bound in deuterium ${\gamma}_vn(p) \rightarrow p{\pi}^{-} (p)$ are presented over a wide final state hadron angle range with a kinematic coverage of the invariant mass ($W$) up to 1.825 GeV and the virtual photon four-momentum transfer squared ($Q^{2}$) from 0.4 to 1.0 GeV$^2$. The exclusive structure functions were extracted and their Legendre moments were obtained. Final-state-interaction contributions have been kinematically separated from the extracted quasi-free cross sections off bound neutrons solely based on the analysis of the experimental data. These new results will serve as long-awaited input for phenomenological analyses to extract the $Q^{2}$ evolution of previously unavailable $n \to N^{*}$ electroexcitation amplitudes and to improve state-of-the-art models of neutrino scattering off nuclei by augmenting the already available results from free protons., Comment: The author list has been updated

Published
2022
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21. Cyclotron cooling to cryogenic temperature in a Penning-Malmberg trap with a large solid angle acceptance

Author

Amsler, C., Breuker, H., Chesnevskaya, S., Costantini, G., Ferragut, R., Giammarchi, M., Gligorova, A., Gosta, G., Higaki, H., Hunter, E. D., Killian, C., Kletzl, V., Kraxberger, V., Kuroda, N., Lanz, A., Leali, M., Mäckel, V., Maero, G., Malbrunot, C., Mascagna, V., Matsuda, Y., Migliorati, S., Murtagh, D. J., Nagata, Y., Nanda, A., Nowak, L., Pasino, E., Romé, M., Simon, M. C., Tajima, M., Toso, V., Ulmer, S., Venturelli, L., Weiser, A., Widmann, E., Wolz, T., Yamazaki, Y., and Zmeskal, J.

Subjects
Physics - Plasma Physics
Abstract

Magnetized nonneutral plasma composed of electrons or positrons couples to the local microwave environment via cyclotron radiation. The equilibrium plasma temperature depends on the microwave energy density near the cyclotron frequency. Fine copper meshes and cryogenic microwave absorbing material were used to lower the effective temperature of the radiation environment in ASACUSA's Cusp trap, resulting in significantly reduced plasma temperature.

Published
2022

22. Beam-Recoil Transferred Polarization in $K^+Y$ Electroproduction in the Nucleon Resonance Region with CLAS12

Author

Carman, D. S., D'Angelo, A., Lanza, L., Mokeev, V. I., Adhikari, K. P., Amaryan, M. J., Armstrong, W. R., Atac, H., Avakian, H., Gayoso, C. Ayerbe, Baltzell, N. A., Barion, L., Battaglieri, M., Bedlinskiy, I., Benkel, B., Bianconi, A., Biselli, A. S., Bondi, M., Boiarinov, S., Bossu, F., Briscoe, W. J., Bueltmann, S., Bulumulla, D., Burkert, V. D., Capobianco, R., Carvajal, J. C., Celentano, A., Chatagnon, P., Chesnokov, V., Chetry, T., Ciullo, G., Clark, L., Cole, P. L., Contalbrigo, M., Costantini, G., Crede, V., Dashyan, N., De Vita, R., Defurne, M., Deur, A., Diehl, S., Djalali, C., Dupre, R., Ehrhart, M., Alaoui, A. El, Fassi, L. El, Elouadrhiri, L., Fegan, S., Filippi, A., Gavalian, G., Ghandilyan, Y., Gilfoyle, G. P., Girod, F. X., Glazier, D. I., Golubenko, A. A., Gothe, R. W., Gotra, Y., Griffioen, K. A., Hafidi, K., Hakobyan, H., Hattawy, M., Hauenstein, F., Hayward, T. B., Hobart, A., Holtrop, M., Ilieva, Y., Ireland, D. G., Isupov, E. L., Jo, H. S., Joo, K., Keller, D., Khanal, A., Kim, A., Kim, W., Klimenko, V., Kripko, A., Kubarovsky, V., Leali, M., Lee, S., Lenisa, P., Livingston, K., MacGregor, I. J. D., Marchand, D., Marsicano, L., Mascagna, V., Mayer, M., McKinnon, B., Migliorati, S., Mineeva, T., Mirazita, M., Montgomery, R. A., Camacho, C. Munoz, Nadel-Turonski, P., Neupane, K., Newton, J., Niccolai, S., Osipenko, M., Pandey, P., Paolone, M., Pappalardo, L. L., Paremuzyan, R., Pasyuk, E., Paul, S. J., Pilleux, N., Pogorelko, O., Price, J. W., Prok, Y., Raue, B. A., Reed, T., Ripani, M., Ritman, J., Rizzo, A., Rossi, P., Sabatie, F., Salgado, C., Schmidt, A., Sharabian, Y. G., Shirokov, E. V., Shrestha, U., Simmerling, P., Sokhan, D., Sparveris, N., Stepanyan, S., Strakovsky, I. I., Strauch, S., Tyler, N., Tyson, R., Ungaro, M., Vallarino, S., Venturelli, L., Voskanyan, H., Voutier, E., Watts, D. P., Wei, K., Wei, X., Wishart, R., Wood, M. H., Yale, B., Zachariou, N., Zhang, J., and Ziegler, V.

Subjects
Nuclear Experiment
Abstract

Beam-recoil transferred polarizations for the exclusive electroproduction of $K^+\Lambda$ and $K^+\Sigma^0$ final states from an unpolarized proton target have been measured using the CLAS12 spectrometer at Jefferson Laboratory. The measurements at beam energies of 6.535~GeV and 7.546~GeV span the range of four-momentum transfer $Q^2$ from 0.3 to 4.5~GeV$^2$ and invariant energy $W$ from 1.6 to 2.4~GeV, while covering the full center-of-mass angular range of the $K^+$. These new data extend the existing hyperon polarization data from CLAS in a similar kinematic range but from a significantly larger dataset. They represent an important addition to the world data, allowing for better exploration of the reaction mechanism in strangeness production processes, for further understanding of the spectrum and structure of excited nucleon states, and for improved insight into the strong interaction in the regime of non-perturbative dynamics., Comment: 25 pages, 22 figures, 4 tables

Published
2022
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23. Minimizing plasma temperature for antimatter mixing experiments

Author

Hunter, E. D., Amsler, C., Breuker, H., Chesnevskaya, S., Costantini, G., Ferragut, R., Giammarchi, M., Gligorova, A., Gosta, G., Higaki, H., Kanai, Y., Killian, C., Kletzl, V., Kraxberger, V., Kuroda, N., Lanz, A., Leali, M., Mäckel, V., Maero, G., Malbrunot, C., Mascagna, V., Matsuda, Y., Migliorati, S., Murtagh, D. J., Nagata, Y., Nanda, A., Nowak, L., Pasino, E., Romé, M., Simon, M. C., Tajima, M., Toso, V., Ulmer, S., Uggerhøj, U., Venturelli, L., Weiser, A., Widmann, E., Wolz, T., Yamazaki, Y., and Zmeskal, J.

Subjects
Physics - Plasma Physics
Abstract

The ASACUSA collaboration produces a beam of antihydrogen atoms by mixing pure positron and antiproton plasmas in a strong magnetic field with a double cusp geometry. The positrons cool via cyclotron radiation inside the cryogenic trap. Low positron temperature is essential for increasing the fraction of antihydrogen atoms which reach the ground state prior to exiting the trap. Many experimental groups observe that such plasmas reach equilibrium at a temperature well above the temperature of the surrounding electrodes. This problem is typically attributed to electronic noise and plasma expansion, which heat the plasma. The present work reports anomalous heating far beyond what can be attributed to those two sources. The heating seems to be a result of the axially open trap geometry, which couples the plasma to the external (300 K) environment via microwave radiation., Comment: Proceedings of the Exotic Atoms (EXA) Conference, Vienna, 2021

Published
2022
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24. Polarized Structure Function $\sigma_{LT'}$ from $\pi^0 p$ Electroproduction Data in the Resonance Region at $0.4$ GeV$^2 < Q^2 < 1.0$ GeV$^2$

Author

Isupov, E. L., Burkert, V. D., Golubenko, A. A., Joo, K., Markov, N. S., Mokeev, V. I., Smith, L. C., Armstrong, W. R., Atac, H., Avakian, H., Baltzell, N. A., Barion, L., Battaglieri, M., Bedlinskiy, I., Benmokhtar, F., Bianconi, A., Biondo, L., Biselli, A. S., Bondi, M., Bossù, F., Briscoe, W. J., Brooks, W. K., Bulumulla, D., Capobianco, R. A., Carman, D. S., Carvajal, J. C., Chatagnon, P., Chesnokov, V., Ciullo, G., Cole, P. L., Clary, B. A., Contalbrigo, M., Costantini, G., D'Angelo, A., Dashyan, N., De Vita, R., Defurne, M., Deur, A., Diehl, S., Djalali, C., Dupre, R., Egiyan, H., Alaoui, A. El, Fassi, L. El, Elouadrhiri, L., Eugenio, P., Fegan, S., Filippi, A., Gavalian, G., Gilfoyle, G. P., Glazier, D. I., Gothe, R. W., Griffioen, K. A., Guidal, M., Guo, L., Hafidi, K., Hakobyan, H., Hattawy, M., Hayward, T. B., Heddle, D., Hicks, K., Hobart, A., Holtrop, M., Illari, I., Ireland, D. G., Jenkins, D., Jo, H. S., Keller, D., Khanal, A., Khandaker, M., Kim, A., Kim, W., Klein, F. J., Klimenko, V., Kripko, A., Kubarovsky, V., Lagerquist, V., Lanza, L., Leali, M., Lenisa, P., Livingston, K., MacGregor, I. J. D., Marchand, D., Marsicano, L., Mascagna, V., McKinnon, B., Meziani, Z. E., Migliorati, S., Mineeva, T., Mirazita, M., Camacho, C. Munoz, Nadel-Turonski, P., Neupane, K., Niccolai, S., O'Connell, T., Osipenko, M., Pandey, P., Paolone, M., Pappalardo, L. L., Paremuzyan, R., Pasyuk, E., Paul, S. J., Phelps, W., Pilleux, N., Pogorelko, O., Poudel, J., Price, J. W., Prok, Y., Raue, B. A., Reed, T., Ripani, M., Ritman, J., Rowley, J., Sabatié, F., Salgado, C., Schmidt, A., Schumacher, R. A., Sharabian, Y. G., Shirokov, E. V., Shrestha, U., Simmerling, P., Sokhan, D., Sparveris, N., Stepanyan, S., Strakovsky, I. I., Strauch, S., Tan, J. A., Tyson, R., Ungaro, M., Vallarino, S., Venturelli, L., Voskanyan, H., Voutier, E., Watts, D., Wei, K., Wei, X., Wood, M. H., Yale, B., Zachariou, N., Zhang, J., and Ziegler, V.

Subjects
Nuclear Experiment
Abstract

The first results on the $\sigma_{LT'}$ structure function in exclusive $\pi^0p$ electroproduction at invariant masses of the final state of 1.5 GeV $<$ $W$ $<$ 1.8 GeV and in the range of photon virtualities 0.4 GeV$^2 < Q^2 < 1.0$ GeV$^2$ were obtained from data on beam spin asymmetries and differential cross sections measured with the CLAS detector at Jefferson Lab. The Legendre moments determined from the $\sigma_{LT'}$ structure function have demonstrated sensitivity to the contributions from the nucleon resonances in the second and third resonance regions. These new data on the beam spin asymmetries in $\pi^0p$ electroproduction extend the opportunities for the extraction of the nucleon resonance electroexcitation amplitudes in the mass range above 1.6 GeV., Comment: 7 pages, 3 figures

Published
2021
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25. Measurement of charged-pion production in deep-inelastic scattering off nuclei with the CLAS detector

Author

Moran, S., Dupre, R., Hakobyan, H., Arratia, M., Brooks, W. K., Borquez, A., Alaoui, A. El, Fassi, L. El, Hafidi, K., Mendez, R., Mineeva, T., Paul, S. J., Amaryan, M. J., Angelini, Giovanni, Armstrong, Whitney R., Atac, H., Baltzell, N. A., Barion, L., Bashkanov, M., Battaglieri, M., Bedlinskiy, I., Benmokhtar, Fatiha, Bianconi, A., Biondo, L., Biselli, A. S., Bossu, F., Boiarinov, S., Briscoe, W. J., Bulumulla, D., Burkert, V. D., Carman, D. S., Chatagnon, P., Chesnokov, V., Chetry, T., Ciullo, G., Cole, P. L., Contalbrigo, M., Costantini, G., D'Angelo, A., Dashyan, N., De Vita, R., Defurne, M., Deur, A., Diehl, S., Djalali, C., Egiyan, H., Elouadrhiri, L., Eugenio, P., Fersch, R., Filippi, A., Gavalian, G., Ghandilyan, Y., Gilfoyle, G. P., Golubenko, A. A., Gothe, R. W., Griffioen, K. A., Guidal, M., Hattawy, M., Hauenstein, F., Hayward, T. B., Heddle, D., Hicks, K., Hobart, A., Holtrop, M., Ilieva, Y., Ireland, D. G., Isupov, E. L., Jo, H. S., Keller, D., Khanal, A., Khandaker, M., Kim, W., Klein, F. J., Kripko, A., Kubarovsky, V., Kuhn, S. E., Lanza, L., Leali, M., Lenisa, P., Livingston, K., MacGregor, I. J . D., Marchand, D., Marsicano, L., Mascagna, V., McKinnon, B., McLauchlin, C., Meziani, Z. E., Migliorati, S., Mirazita, M., Mokeev, V., Camacho, C. Munoz, Nadel-Turonski, P., Neupane, K., Niccolai, S., Niculescu, G., O'Connell, T. R., Osipenko, M., Ostrovidov, A. I., Ouillon, M., Pandey, P., Paolone, M., Pappalardo, L. L., Pasyuk, E., Phelps, W., Pogorelko, O., Poudel, J., Price, J. W., Prok, Y., Raue, B. A., Reed, Trevor, Ripani, M., Ritman, J., Rizzo, A., Rosner, G., Rowley, J., Sabatie, F., Salgado, C., Schmidt, A., Schumacher, R. A., Sharabian, Y. G., Shirokov, E. V., Shrestha, U., Sokhan, D., Soto, O., Sparveris, N., Stepanyan, S., Strakovsky, I. I., Strauch, S., Tyson, R., Ungaro, M., Venturelli, L., Voskanyan, H., Vossen, A., Voutier, E., Watts, D. P., Wei, Kevin, Wei, X., Weinstein, L. B., Wishart, R., Wood, M. H., Yale, B., Zachariou, N., Zhang, J., and Zhao, Z. W.

Subjects
Nuclear Experiment, High Energy Physics - Experiment
Abstract

Background: Energetic quarks in nuclear DIS propagate through the nuclear medium. Processes that are believed to occur inside nuclei include quark energy loss through medium-stimulated gluon bremsstrahlung and intra-nuclear interactions of forming hadrons. More data are required to gain a more complete understanding of these effects. Purpose: To test the theoretical models of parton transport and hadron formation, we compared their predictions for the nuclear and kinematic dependence of pion production in nuclei. Methods: We have measured charged-pion production in semi-inclusive DIS off D, C, Fe, and Pb using the CLAS detector and the CEBAF 5.014 GeV electron beam. We report results on the nuclear-to-deuterium multiplicity ratio for $\pi^{+}$ and $\pi^{-}$ as a function of energy transfer, four-momentum transfer, and pion energy fraction or transverse momentum - the first three-dimensional study of its kind. Results: The $\pi^{+}$ multiplicity ratio is found to depend strongly on the pion fractional energy $z$, and reaches minimum values of $0.67\pm0.03$, $0.43\pm0.02$, and $0.27\pm0.01$ for the C, Fe, and Pb targets, respectively. The $z$ dependences of the multiplicity ratios for $\pi^{+}$ and $\pi^{-}$ are equal within uncertainties for C and Fe targets but show differences at the level of 10$\%$ for the Pb-target data. The results are qualitatively described by the GiBUU transport model, as well as with a model based on hadron absorption, but are in tension with calculations based on nuclear fragmentation functions. Conclusions: These precise results will strongly constrain the kinematic and flavor dependence of nuclear effects in hadron production, probing an unexplored kinematic region. They will help to reveal how the nucleus reacts to a fast quark, thereby shedding light on its color structure, transport properties, and on the mechanisms of the hadronization process., Comment: 22 pages, 5 figures, 12 tables

Published
2021
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26. First-time measurement of Timelike Compton Scattering

Author

Chatagnon, P., Niccolai, S., Stepanyan, S., Amaryan, M. J., Angelini, G., Armstrong, W. R., Atac, H., Gayoso, C. Ayerbe, Baltzell, N. A., Barion, L., Bashkanov, M., Battaglieri, M., Bedlinskiy, I., Benmokhtar, F., Bianconi, A., Biondo, L., Biselli, A. S., Bondi, M., Bossù, F., Boiarinov, S., Briscoe, W. J., Brooks, W. K., Bulumulla, D., Burkert, V. D., Carman, D. S., Carvajal, J. C., Caudron, M., Celentano, A., Chetry, T., Ciullo, G., Clark, L., Cole, P. L., Contalbrigo, M., Costantini, G., Crede, V., D'Angelo, A., Dashyan, N., Defurne, M., De Vita, R., Deur, A., Diehl, S., Djalali, C., Dupré, R., Egiyan, H., Ehrhart, M., Alaoui, A. El, Fassi, L. El, Elouadrhiri, L., Fegan, S., Fersch, R., Filippi, A., Gavalian, G., Ghandilyan, Y., Gilfoyle, G. P., Girod, F. X., Glazier, D. I., Golubenko, A. A., Gothe, R. W., Gotra, Y., Griffioen, K. A., Guidal, M., Guo, L., Hakobyan, H., Hattawy, M., Hayward, T. B., Heddle, D., Hobart, A., Holtrop, M., Hyde, C. E., Ilieva, Y., Ireland, D. G., Isupov, E. L., Jo, H. S., Joo, K., Kabir, M. L., Keller, D., Khachatryan, G., Khanal, A., Kim, A., Kim, W., Kripko, A., Kubarovsky, V., Kuhn, S. E., Lanza, L., Leali, M., Lee, S., Lenisa, P., Livingston, K., MacGregor, I . J . D., Marchand, D., Marsicano, L., Mascagna, V., McKinnon, B., McLauchlin, C., Migliorati, S., Mirazita, M., Mokeev, V., Montgomery, R. A., Camacho, C. Munoz, Nadel-Turonski, P., Naidoo, P., Neupane, K., O'Connell, T. R., Osipenko, M., Ouillon, M., Pandey, P., Paolone, M., Pappalardo, L. L., Paremuzyan, R., Pasyuk, E., Phelps, W., Pogorelko, O., Poudel, J., Price, J. W., Prok, Y., Raue, B. A., Reed, T., Ripani, M., Rizzo, A., Rossi, P., Rowley, J., Sabatié, F., Schmidt, A., Segarra, E. P., Sharabian, Y. G., Shirokov, E. V., Shrestha, U., Sokhan, D., Soto, O., Sparveris, N., Strakovsky, I. I., Strauch, S., Tyler, N., Tyson, R., Ungaro, M., Vallarino, S., Venturelli, L., Voskanyan, H., Vossen, A., Voutier, E., Watts, D. P., Wei, K., Wei, X., Wishart, R., Yale, B., Zachariou, N., Zhang, J., Zhao, Z. W., and Collaboration, the CLAS

Subjects
High Energy Physics - Experiment
Abstract

We present the first measurement of the Timelike Compton Scattering process, $\gamma p\to p^\prime \gamma^* (\gamma^*\to e^+e^-) $, obtained with the CLAS12 detector at Jefferson Lab. The photon beam polarization and the decay lepton angular asymmetries are reported in the range of timelike photon virtualities $2.25

Published
2021
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27. Improved $\Lambda p$ Elastic Scattering Cross Sections Between 0.9 and 2.0 GeV/c and Connections to the Neutron Star Equation of State

Author

CLAS Collaboration, Rowley, J., Compton, N., Djalali, C., Hicks, K., Price, J., Zachariou, N., Adhikari, K. P., Armstrong, W. R., Atac, H., Baashen, L., Barion, L., Bashkanov, M., Battaglieri, M., Bedlinskiy, I., Benmokhtar, F., Bianconi, A., Biondo, L., Biselli, A. S., Bondi, M., Bossu, F., Boiarinov, S., Briscoe, W. J., Brooks, W. K., Bulumulla, D., Burkert, V. D., Carman, D. S., Carvajal, J. C., Celentano, A., Chatagnon, P., Chesnokov, V., Chetry, T., Ciullo, G., Clark, L., Cole, P. L., Contalbrigo, M., Costantini, G., Crede, V., D'Angelo, A., Dashyan, N., De Vita, R., Defurne, M., Deur, A., Diehl, S., Dupre, R., Egiyan, H., Ehrhart, M., Alaoui, A. El, Fassi, L. El, Eugenio, P., Fedotov, G., Fegan, S., Fersch, R., Filippi, A., Fradi, A., Gavalian, G., Girod, F. X., Glazier, D. I., Golubenko, A., Gothe, R. W., Griffioen, K., Guo, L., Hafidi, K., Hakobyan, H., Hattawy, M., Hayward, T. B., Heddle, D., Hobart, A., Holtrop, M., Ilieva, Y., Ireland, D. G., Isupov, E. L., Jenkins, D., Jo, H. S., Joo, K., Keller, D., Khanal, A., Khandaker, M., Kim, A., Korover, I., Kripko, A., Kubarovsky, V., Kuhn, S. E., Lanza, L., Leali, M., Lenisa, P., Livingston, K., MacGregor, I. J. D., Marchand, D., Markov, N., Marsicano, L., Mascagna, V., McCracken, M. E., McKinnon, B., McLauchlin, C., Meziani, Z. E., Migliorati, S., Mineeva, T., Mirazita, M., Mokeev, V., Munevar, E., Camacho, C. Munoz, Nadel-Turonski, P., Neupane, K., Niccolai, S., Niculescu, G., O'Connell, T. R., Osipenko, M., Ostrovidov, A. I., Pandey, P., Paolone, M., Pappalardo, L. L., Pasyuk, E., Pogorelko, O., Prok, Y., Reed, T., Ripani, M., Ritman, J., Rizzo, A., Rosner, G., Sabatie, F., Salgado, C., Schmidt, A., Schumacher, R. A., Sharabian, Y. G., Shrestha, U., Sokhan, D., Soto, O., Sparveris, N., Strakovsky, I. I., Strauch, S., Tyson, R., Ungaro, M., Venturelli, L., Voskanyan, H., Vossen, A., Voutier, E., Watts, D., Wei, K., Wei, X., Wishart, R., Wood, M. H., Yale, B., Yurov, M., Zhang, J., and Zhao, Z. W.

Subjects
High Energy Physics - Experiment, Nuclear Experiment
Abstract

Strange matter is believed to exist in the cores of neutron stars based on simple kinematics. If this is true, then hyperon-nucleon interactions will play a significant part in the neutron star equation of state (EOS). Yet, compared to other elastic scattering processes, there is very little data on $\Lambda$-$N$ scattering. This experiment utilized the CLAS detector to study the $\Lambda p \rightarrow \Lambda p$ elastic scattering cross section in the incident $\Lambda$ momentum range 0.9-2.0 GeV/c. This is the first data on this reaction in several decades. The new cross sections have significantly better accuracy and precision than the existing world data, and the techniques developed here can also be used in future experiments., Comment: 6 pages, 5 figures

Published
2021

28. Light dark matter searches with positrons

Author

Battaglieri, M., Bianconi, A., Bisio, P., Bondì, M., Celentano, A., Costantini, G., Cole, P. L., Darmé, L., De Vita, R., D'Angelo, A., De Napoli, M., Fassi, L. El, Kozhuharov, V., Italiano, A., Krnjaic, G., Lanza, L., Leali, M., Marsicano, L., Mascagna, V., Migliorati, S., Nardi, E., Raggi, M., Randazzo, N., Santopinto, E., Smith, E., Spreafico, M., Stepanyan, S., Ungaro, M., Valente, P., Venturelli, L., and Wood, M. H.

Subjects
High Energy Physics - Experiment, High Energy Physics - Phenomenology
Abstract

We discuss two complementary strategies to search for light dark matter (LDM) exploiting the positron beam possibly available in the future at Jefferson Laboratory. LDM is a new compelling hypothesis that identifies dark matter with new sub-GeV "hidden sector" states, neutral under standard model interactions and interacting with our world through a new force. Accelerator-based searches at the intensity frontier are uniquely suited to explore it. Thanks to the high intensity and the high energy of the CEBAF (Continuous Electron Beam Accelerator Facility) beam, and relying on a novel LDM production mechanism via positron annihilation on target atomic electrons, the proposed strategies will allow us to explore new regions in the LDM parameters space, thoroughly probing the LDM hypothesis as well as more general hidden sector scenarios., Comment: 11 pages, 8 figures. Prepared for submission in EPJA. This work supersedes the corresponding contribution in arXiv:2007.15081. Added aknowledgement to Jefferson Lab

Published
2021
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29. Beam charge asymmetries for deeply virtual Compton scattering off the proton

Author

Burkert, V., Elouadrhiri, L., Girod, F. -X., Niccolai, S., Voutier, E., Afanasev, A., Barion, L., Battaglieri, M., Bernauer, J. C., Bianconi, A., Capobianco, R., Caudron, M., Causse, L., Chatagnon, P., Chetry, T., Ciullo, G., Cole, P. L., Contalbrigo, M., Costantini, G., Defurne, M., Deur, A., Diehl, S., Dupré, R., Ehrhart, M., Fernando, I. P., Filippi, A., Forest, T., Grames, J., Gueye, P., Habet, S., Higinbotham, D., Hobart, A., Hyde, C. E., Joo, K., Kim, A., Klimenko, V., Ko, H. -S., Kubarovsky, V., Leali, M., Lenisa, P., Marchand, D., Mascagna, V., McCaughan, M., McKinnon, B., Movsisyan, A., Muñoz~Camacho, C., Pappalardo, L., Pasyuk, E., Poelker, M., Price, K., Raue, B., Shabestari, M., Santos, R., Sergeyeva, V., Strakovsky, I., Stoler, P., Venturelli, L., Zhao, S., Zhao, Z. W., and Collaboration, the CLAS

Subjects
Nuclear Experiment, High Energy Physics - Experiment
Abstract

The unpolarized and polarized Beam Char\-ge Asymmetries (BCAs) of the $\vv{e}^{\pm}p \to e^{\pm}p \gamma$ process off unpolarized hydrogen are discussed. The measurement of BCAs with the CLAS12 spectrometer at the Thomas Jefferson National Accelerator Facility, using polarized positron and electron beams at 10.6 GeV is investigated. This experimental configuration allows to measure azimuthal and $t$-dependences of the unpolarized and polarized BCAs over a large $(x_B,Q^2)$ phase space, providing a direct access to the real part of the Compton Form Factor (CFF) ${\mathcal H}$. Additionally, these measurements confront the Bethe-Heitler dominance hypothesis and eventual effects beyond leading twist. The impact of potential positron beam data on the determination of CFFs is also investigated within a local fitting approach of experimental observables. Positron data are shown to strongly reduce correlations between CFFs and consequently improve significantly the determination of $\Re {\rm e} [\mathcal{H}]$., Comment: 11 pages, 10 figures, Article part of the EPJA Topical Issue about "Positron beams and physics at Jefferson Lab". arXiv admin note: text overlap with arXiv:2007.15081

Published
2021
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30. Measurement of deeply virtual Compton scattering off Helium-4 with CLAS at Jefferson Lab

Author

Dupré, R., Hattawy, M., Baltzell, N. A., Bültmann, S., De Vita, R., Alaoui, A. El, Fassi, L. El, Egiyan, H., Girod, F. X., Guidal, M., Hafidi, K., Jenkins, D., Liuti, S., Perrin, Y., Stepanyan, S., Torayev, B., Voutier, E., Amaryan, M. J., Armstrong, W. R., Atac, H., Gayoso, C. Ayerbe, Barion, L., Battaglieri, M., Bedlinskiy, I., Benmokhtar, F., Bianconi, A., Biselli, A. S., Bondi, M., Bossù, F., Boiarinov, S., Briscoe, W. J., Bulumulla, D., Burkert, V., Carman, D. S., Carvajal, J. C., Caudron, M., Celentano, A., Chatagnon, P., Chesnokov, V., Chetry, T., Ciullo, G., Clary, B. A., Cole, P. L., Contalbrigo, M., Costantini, G., Crede, V., D'Angelo, A., Dashyan, N., Defurne, M., Deur, A., Diehl, S., Djalali, C., Ehrhart, M., Elouadrhiri, L., Eugenio, P., Fegan, S., Filippi, A., Forest, T. A., Ghandilyan, Y., Gilfoyle, G. P., Gothe, R. W., Griffioen, K. A., Hakobyan, H., Hayward, T. B., Hicks, K., Hobart, A., Holtrop, M., Ilieva, Y., Ireland, D. G., Isupov, E. L., Jo, H. S., Joo, K., Joosten, S., Keller, D., Khachatryan, G., Khanal, A., Khandaker, M., Kim, A., Kim, W., Kripko, A., Kubarovsky, V., Kuhn, S. E., Lanza, L., Livingston, K., Kabir, M. L., Leali, M., Lenisa, P., MacGregor, I. J. D., Marchand, D., Markov, N., Mascagna, V., Mayer, M., McKinnon, B., Mirazita, M., Mokeev, V. I., Neupane, K., Niccolai, S., O'Connell, T. R., Osipenko, M., Paolone, M., Pappalardo, L. L., Paremuzyan, R., Pasyuk, E., Payette, D., Phelps, W., Pivnyuk, N., Pogorelko, O., Poudel, J., Prok, Y., Ripani, M., Ritman, J., Rizzo, A., Rosner, G., Rossi, P., Rowley, J., Sabatié, F., Salgado, C., Schmidt, A., Schumacher, R., Sergeyeva, V., Sharabian, Y., Shrestha, U., Sokhan, D., Soto, O., Sparveris, N., Strakovsky, I. I., Strauch, S., Tyler, N., Ungaro, M., Venturelli, L., Voskanyan, H., Vossen, A., Watts, D., Wei, K., Wei, X., Weinstein, L. B., Wishart, R., Wood, M. H., Yale, B., Zachariou, N., and Zhang, J.

Subjects
Nuclear Experiment
Abstract

We report on the measurement of the beam spin asymmetry in the deeply virtual Compton scattering off $^4$He using the CEBAF Large Acceptance Spectrometer (CLAS) at Jefferson Lab using a 6 GeV longitudinally polarized electron beam incident on a pressurized $^4$He gaseous target. We detail the method used to ensure the exclusivity of the measured reactions, in particular the upgrade of CLAS with a radial time projection chamber to detect the low-energy recoiling $^4$He nuclei and an inner calorimeter to extend the photon detection acceptance at forward angles. Our results confirm the theoretically predicted enhancement of the coherent ($e^4$He$~\to~e'$$^4$He$'\gamma'$) beam spin asymmetries compared to those observed on the free proton, while the incoherent ($e^4$He$~\to~e'$p$'\gamma'$X$'$) asymmetries exhibit a 30$\%$ suppression. From the coherent data, we were able to extract, in a model-independent way, the real and imaginary parts of the only $^4$He Compton form factor, $\cal H_A$, leading the way toward 3D imaging of the partonic structure of nuclei.

Published
2021
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31. Observation of Beam Spin Asymmetries in the Process $e p \rightarrow e \pi^{+}\pi^{-}X$ with CLAS12

Author

Hayward, T. B., Dilks, C., Vossen, A., Avakian, H., Adhikari, S., Angelini, G., Arratia, M., Atac, H., Gayoso, C. Ayerbe, Baltzell, N. A., Barion, L., Battaglieri, M., Bedlinskiy, I., Benmokhtar, F., Bianconi, A., Biselli, A. S., Bondì, M., Bossù, F., Boiarinov, S., Briscoe, W. J., Brooks, W. K., Bulumulla, D., Burkert, V. D., Carman, D. S., Carvajal, J. C., Celentano, A., Chatagnon, P., Chetry, T., Ciullo, G., Clary, B. A., Cole, P. L., Contalbrigo, M., Costantini, G., Crede, V., D'Angelo, A., Dashyan, N., De Vita, R., Defurne, M., Deur, A., Diehl, S., Djalali, C., Dupre, R., Dugger, M., Egiyan, H., Ehrhart, M., Alaoui, A. El, Fassi, L. El, Elouadrhiri, L., Fegan, S., Filippi, A., Forest, T. A., Gavalian, G., Gilfoyle, G. P., Girod, F. X., Glazier, D. I., Golubenko, A. A., Gothe, R. W., Gotra, Y., Griffioen, K. A., Guidal, M., Hafidi, K., Hakobyan, H., Hattawy, M., Hauenstein, F., Hicks, K., Hobart, A., Holtrop, M., Ireland, D. G., Isupov, E. L., Jo, H. S., Joo, K., Joosten, S., Keller, D., Khachatryan, M., Khanal, A., Kim, A., Kim, W., Kripko, A., Kubarovsky, V., Kuhn, S. E., Lanza, L., Leali, M., Lee, S., Lenisa, P., Livingston, K., MacGregor, I. J. D., Marchand, D., Markov, N., Marsicano, L., Mascagna, V., McKinnon, B., Meziani, Z. E., Mirazita, M., Mokeev, V., Movsisyan, A, Camacho, C. Munoz, Nadel-Turonski, P., Naidoo, P., Nanda, S., Neupane, K., Niccolai, S., Niculescu, G., O'Connell, T. R., Osipenko, M., Paolone, M., Pappalardo, L. L., Paremuzyan, R., Pasyuk, E., Phelps, W., Pogorelko, O., Prok, Y., Raue, B. A., Ripani, M., Ritman, J., Rizzo, A., Rossi, P., Rowley, J., Sabatié, F., Salgado, C., Schmidt, A., Segarra, E. P., Sharabian, Y. G., Shrestha, U., Sokhan, D., Soto, O., Sparveris, N., Stepanyan, S., Strakovsky, I. I., Strauch, S., Thornton, A., Tyler, N., Tyson, R., Ungaro, M., Venturelli, L., Voskanyan, H., Voutier, E., Watts, D. P., Wei, K., Wei, X., Wood, M. H., Yale, B., Zachariou, N., and Zhang, J.

Subjects
High Energy Physics - Experiment
Abstract

The observation of beam spin asymmetries in two-pion production in semi-inclusive deep inelastic scattering off an unpolarized proton target is reported. The data presented here were taken in the fall of 2018 with the CLAS12 spectrometer using a 10.6 GeV longitudinally spin-polarized electron beam delivered by CEBAF at JLab. The measured asymmetries provide the first opportunity to extract the parton distribution function $e(x)$, which provides information about the interaction between gluons and quarks, in a collinear framework that offers cleaner access than previous measurements. The asymmetries also constitute the first ever signal sensitive to the helicity-dependent two-pion fragmentation function $G_1^\perp$. A clear sign change is observed around the $\rho$ mass that appears in model calculations and is indicative of the dependence of the produced pions on the helicity of the fragmenting quark., Comment: 6 pages, 5 figures

Published
2021
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32. Multidimensional, high precision measurements of beam single spin asymmetries in semi-inclusive $\pi^{+}$ electroproduction off protons in the valence region

Author

Diehl, S., Kim, A., Angelini, G., Joo, K., Adhikari, S., Amaryan, M., Arratia, M., Atac, H., Avakian, H., Gayoso, C. Ayerbe, Baltzell, N. A., Barion, L., Bastami, S., Battaglieri, M., Bedlinskiy, I., Benmokhtar, F., Bianconi, A., Biselli, A. S., Bondi, M., Bossu, F., Boiarinov, S., Brinkmann, K. -T., Briscoe, W. J., Brooks, W., Bulumulla, D., Burkert, V. D., Carman, D. S., Carvajal, J. C., Celentano, A., Chatagnon, P., Chetry, T., Ciullo, G., Clark, L., Clary, B. A., Cole, P. L., Contalbrigo, M., Costantini, G., Crede, V., D'Angelo, A., Dashyan, N., De Vita, R., Defurne, M., Deur, A., Dilks, C., Djalali, C., Dugger, M., Dupre, R., Ehrhart, M., Alaoui, A. El, Fassi, L. El, Elouadrhiri, L., Fegan, S., Filippi, A., Forest, T., Gavalian, G., Gilfoyle, G. P., Girod, F. X., Glazier, D. I., Golubenko, A. A., Gothe, R. W., Gotra, Y., Griffioen, K. A., Guidal, M., Hafidi, K., Hakobyan, H., Hattawy, M., Hayward, T. B., Heddle, D., Hicks, K., Hobart, A., Holtrop, M., Hyde, C. E., Ireland, D. G., Isupov, E. L., Jo, H. S., Johnston, R., Joosten, S., Keller, D., Khachatryan, M., Khanal, A., Kim, W., Kripko, A., Kubarovsky, V., Kuhn, S. E., Lanza, L., Leali, M., Lee, S., Lenisa, P., Livingston, K., Lu, Z., MacGregor, I. J. D., Marchand, D., Markov, N., Marsicano, L., Mascagna, V., McKinnon, B., Meziani, Z. E., Milner, R. G., Mineeva, T., Mirazita, M., Mokeev, V., Moran, P., Movsisyan, A., Camacho, C. Munoz, Nadel-Turonski, P., Naidoo, P., Neupane, K., Niccolai, S., Niculescu, G., O'Connell, T. R., Osipenko, M., Paolone, M., Pappalardo, L. L., Paremuzyan, R., Pasyuk, E., Phelps, W., Pogorelko, O., Prok, Y., Prokudin, A., Raue, B. A., Ripani, M., Ritman, J., Rizzo, A., Roberts, C. D., Rossi, P., Rowley, J., Sabatie, F., Salgado, C., Schmidt, A., Segarra, E. P., Sharabian, Y. G., Shrestha, U., Simmerling, P., Sokhan, D., Soto, O., Sparveris, N., Stepanyan, S., Stoler, P., Strakovsky, I. I., Strauch, S., Tezgin, K., Thornton, A., Tyler, N., Tyson, R., Ungaro, M., Venturelli, L., Voskanyan, H., Vossen, A., Voutier, E., Watts, D. P., Wei, K., Wei, X., Xu, S. -S., Yale, B., Zachariou, N., and Zhang, J.

Subjects
High Energy Physics - Experiment
Abstract

High precision measurements of the polarized electron beam-spin asymmetry in semi-inclusive deep inelastic scattering (SIDIS) from the proton have been performed using a 10.6~GeV incident electron beam and the CLAS12 spectrometer at Jefferson Lab. We report here a high precision multidimensional study of single $\pi^{+}$ SIDIS data over a large kinematic range in Bjorken x, fractional energy and transverse momentum of the hadron as well as photon virtualities $Q^{2}$ ranging from $1-7\,$GeV$^{2}$. In particular, the structure function ratio $F^{\sin\phi}_{LU}/F_{UU}$ has been determined, where $F^{\sin\phi}_{LU}$ is a twist-3 quantity that can reveal novel aspects of emergent hadron mass and quark-gluon correlations within the nucleon. The data's impact on the evolving understanding of the underlying reaction mechanisms and their kinematic variation is explored using theoretical models for the different contributing transverse momentum dependent parton distribution functions.

Published
2021
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33. Measurement of the Principal Quantum Number Distribution in a Beam of Antihydrogen Atoms

Author

Kolbinger, B., Amsler, C., Cuendis, S. Arguedas, Breuker, H., Capon, A., Costantini, G., Dupré, P., Fleck, M., Gligorova, A., Higaki, H., Kanai, Y., Kletzl, V., Kuroda, N., Lanz, A., Leali, M., Mäckel, V., Malbrunot, C., Mascagna, V., Massiczek, O., Matsuda, Y., Murtagh, D. J., Nagata, Y., Nanda, A., Nowak, L., Radics, B., Sauerzopf, C., Simon, M. C., Tajima, M., Torii, H. A., Uggerhøj, U., Ulmer, S., Venturelli, L., Weiser, A., Wiesinger, M., Widmann, E., Wolz, T., Yamazaki, Y., and Zmeskal, J.

Subjects
Physics - Atomic Physics
Abstract

The ASACUSA (Atomic Spectroscopy And Collisions Using Slow Antiprotons) collaboration plans to measure the ground-state hyperfine splitting of antihydrogen in a beam at the CERN Antiproton Decelerator with initial relative precision of 10-6 or better, to test the fundamental CPT (combination of charge conjugation, parity transformation and time reversal) symmetry between matter and antimatter. This challenging goal requires a polarised antihydrogen beam with a sufficient number of antihydrogen atoms in the ground state. The first measurement of the quantum state distribution of antihydrogen atoms in a low magnetic field environment of a few mT is described. Furthermore, the data-driven machine learning analysis to identify antihydrogen events is discussed., Comment: 18 pages, 10 figures

Published
2020

34. An experimental program with high duty-cycle polarized and unpolarized positron beams at Jefferson Lab

Author

Accardi, A., Afanasev, A., Albayrak, I., Ali, S. F., Amaryan, M., Annand, J. R. M., Arrington, J., Asaturyan, A., Atac, H., Avakian, H., Averett, T., Gayoso, C. Ayerbe, Bai, X., Barion, L., Battaglieri, M., Bellini, V., Beminiwattha, R., Benmokhtar, F., Berdnikov, V. V., Bernauer, J. C., Bertone, V., Bianconi, A., Biselli, A., Bisio, P., Blunden, P., Boer, M., Bondì, M., Brinkmann, K. -T., Briscoe, W. J., Burkert, V., Cao, T., Camsonne, A., Capobianco, R., Cardman, L., Carmignotto, M., Caudron, M., Causse, L., Celentano, A., Chatagnon, P., Chen, J. -P., Chetry, T., Ciullo, G., Cline, E., Cole, P. L., Contalbrigo, M., Costantini, G., D'Angelo, A., Darmé, L., Day, D., Defurne, M., De Napoli, M., Deur, A., De Vita, R., D'Hose, N., Diehl, S., Diefenthaler, M., Dongwi, B., Dupré, R., Dutrieux, H., Dutta, D., Ehrhart, M., Fassi, L. El, Elouadrhiri, L., Ent, R., Erler, J., Fernando, I. P., Filippi, A., Flay, D., Forest, T., Fuchey, E., Fucini, S., Furletova, Y., Gao, H., Gaskell, D., Gasparian, A., Gautam, T., Girod, F. -X., Gnanvo, K., Grames, J., Grauvoge, G. N., Gueye, P., Guidal, M., Habet, S., Hague, T. J., Hamilton, D. J., Hansen, O., Hasell, D., Hattawy, M., Higinbotham, D. W., Hobart, A., Horn, T., Hyde, C. E., Ibrahim, H., Ilyichev, A., Italiano, A., Joo, K., Joosten, S. J., Khachatryan, V., Kalantarians, N., Kalicy, G., Karky, B., Keller, D., Keppel, C., Kerver, M., Khandaker, M., Kim, A., Kim, J., King, P. M., Kinney, E., Klimenko, V., Ko, H. -S., Kohl, M., Kozhuharov, V., Kriesten, B. T., Krnjaic, G., Kubarovsky, V., Kutz, T., Lanza, L., Leali, M., Lenisa, P., Liyanage, N., Liu, Q., Liuti, S., Mammei, J., Mantry, S., Marchand, D., Markowitz, P., Marsicano, L., Mascagna, V., Mazouz, M., McCaughan, M., McKinnon, B., McNulty, D., Melnitchouk, W., Metz, A., Meziani, Z. -E., Migliorati, S., Mihovilovic, M., Milner, R., Mkrtchyan, A., Mkrtchyan, H., Movsisyan, A., Moutarde, H., Muhoza, M., Camacho, C. Muñoz, Murphy, J., Nadel-Turonski, P., Nardi, E., Nazeer, J., Niccolai, S., Niculescu, G., Novotny, R., Owens, J. F., Paolone, M., Pappalardo, L., Paremuzyan, R., Pasquini, B., Pasyuk, E., Patel, T., Pegg, I., Peng, C., Perera, D., Poelker, M., Price, K., Puckett, A. J. R., Raggi, M., Randazzo, N., Rashad, M. N. H., Rathnayake, M., Raue, B., Reimer, P. E., Rinaldi, M., Rizzo, A., Roblin, Y., Roche, J., Rondon-Aramayo, O., Sabatié, F., Salmè, G., Santopinto, E., Estrada, R. Santos, Sawatzky, B., Schmidt, A., Schweitzer, P., Scopetta, S., Sergeyeva, V., Shabestari, M., Shahinyan, A., Sharabian, Y., Širca, S., Smith, E. S., Sokhan, D., Somov, A., Sparveris, N., Spata, M., Spiesberger, H., Spreafico, M., Stepanyan, S., Stoler, P., Strakovsky, I., Suleiman, R., Suresh, M., Sznajder, P., Szumila-Vance, H., Tadevosyan, V., Tadepalli, A. S., Thomas, A. W., Tiefenback, M., Trotta, R., Ungaro, M., Valente, P., Vanderhaeghen, M., Venturelli, L., Voskanyan, H., Voutier, E., Wojtsekhowski, B., Wood, M. H., Wood, S., Xie, J., Xiong, W., Ye, Z., Yurov, M., Zaunick, H. -G., Zhamkochyan, S., Zhang, J., Zhang, S., Zhao, S., Zhao, Z. W., Zheng, X., Zhou, J., and Zorn, C.

Subjects
Nuclear Experiment, High Energy Physics - Experiment, High Energy Physics - Phenomenology
Abstract

Positron beams, both polarized and unpolarized, are identified as essential ingredients for the experimental programs at the next generation of lepton accelerators. In the context of the hadronic physics program at Jefferson Lab (JLab), positron beams are complementary, even essential, tools for a precise understanding of the electromagnetic structure of nucleons and nuclei, in both the elastic and deep-inelastic regimes. For instance, elastic scattering of polarized and unpolarized electrons and positrons from the nucleon enables a model independent determination of its electromagnetic form factors. Also, the deeply-virtual scattering of polarized and unpolarized electrons and positrons allows unambiguous separation of the different contributions to the cross section of the lepto-production of photons and of lepton-pairs, enabling an accurate determination of the nucleons and nuclei generalized parton distributions, and providing an access to the gravitational form factors. Furthermore, positron beams offer the possibility of alternative tests of the Standard Model of particle physics through the search of a dark photon, the precise measurement of electroweak couplings, and the investigation of charged lepton flavor violation. This document discusses the perspectives of an experimental program with high duty-cycle positron beams at JLab., Comment: 18 pages, 7 figures This version superseeds the previous version which scientific content was decomposed into several more elaborated articles. All of these articles will be collected in the EPJ A Topical Issue about "Positron beam and physics at Jefferson Lab (e+@Jlab)"

Published
2020
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35. Chromatin and cytoskeletal tethering determine nuclear morphology in progerin expressing cells

Author

Lionetti, M. C., Bonfanti, S., Fumagalli, M. R., Budrikis, Z., Clos, F. Font, Costantini, G., Chepizhko, O., Zapperi, S., and La Porta, C. A. M.

Subjects
Physics - Biological Physics, Quantitative Biology - Cell Behavior
Abstract

The nuclear morphology of eukaryotic cells is determined by the interplay between the lamina forming the nuclear skeleton, the chromatin inside the nucleus and the coupling with the cytoskeleton. Nuclear alterations are often associated with pathological conditions as in the Hutchinson-Gilford progeria syndrome (HGPS) where a mutation in the lamin A gene yields an altered form of the protein, named progerin, and an aberrant nuclear shape. Here, we introduce an inducible cellular model of HGPS in HeLa cells where increased progerin expression leads to alterations in the coupling of the lamin shell with cytoskeletal/chromatin tethers as well as with Polycomb-group (PcG) proteins. Furthermore, our experiments show that progerin expression leads to enhanced nuclear shape fluctuations in response to cytoskeletal activity. To interpret the experimental results, we introduce a computational model of the cell nucleus that includes explicitly chromatin fibers, the nuclear shell and the coupling with the cytoskeleton. The model allows us to investigate how the geometrical organization of chromatin-lamin tether affects nuclear morphology and shape fluctuations. In sum, our findings highlight the crucial role played by lamin-chromatin and lamin-cytoskeletal alterations in determining nuclear shape morphology and in affecting cellular functions and gene regulation., Comment: 38 pages, 25 figures

Published
2020
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36. Measurement of the helicity asymmetry Eγ→p→→pπ0 for the Eγ→p→→pπ0 reaction in the resonance region: The CLAS Collaboration

Author

Kim, C. W., Zachariou, N., Bashkanov, M., Briscoe, W. J., Fegan, S., Kashevarov, V. L., Nikonov, K., Sarantsev, A., Schmidt, A., Strakovsky, I. I., Watts, D. P., Workman, R. L., Achenbach, P., Akbar, Z., Amaryan, M. J., Angelini, G., Armstrong, W. R., Atac, H., Baashen, L., Baltzell, N. A., Barion, L., Battaglieri, M., Bedlinskiy, I., Benkel, B., Benmokhtar, F., Benmouna, N., Bianconi, A., Biselli, A. S., Booth, W. A., Bossù, F., Boiarinov, S., Brinkmann, K. T., Brock, J., Bulumulla, D., Burkert, V. D., Cao, T., Carlin, C., Carman, D. S., Carvajal, J. C., Chatagnon, P., Chesnokov, V., Chetry, T., Ciullo, G., Clash, G., Cole, P. L., Contalbrigo, M., Becerra, O. Cortes, Costantini, G., Crede, V., D’Angelo, A., Dashyan, N., De Vita, R., Defurne, M., Deur, A., Diehl, S., Djalali, C., Dugger, M., Dupre, R., Egiyan, H., Alaoui, A. El, Fassi, L. El, Elouadrhiri, L., Eugenio, P., Filippi, A., Fogler, C., Gavalian, G., Gilfoyle, G. P., Golubenko, A. A., Gosta, G., Gothe, R. W., Griffioen, K. A., Hafidi, K., Hakobyan, H., Hattawy, M., Hauenstein, F., Hayward, T. B., Heddle, D., Hobart, A., Holtrop, M., Ilieva, Y., Illari, I., Ireland, D. G., Isupov, E. L., Iwamoto, H., Jenkins, D., Jo, H. S., Johnston, R., Joo, K., Joosten, S., Kageya, T., Keith, C. D., Keller, D., Khanal, A., Kim, A., Kim, W., Klein, F. J., Klimenko, V., Kripko, A., Kubarovsky, V., Lanza, L., Leali, M., Lee, S., Li, X., Livingston, K., MacGregor, I. J. D., Marchand, D., Mascagna, V., McKinnon, B., Migliorati, S., Milner, R. G., Mineeva, T., Mokeev, V., Camacho, C. Munoz, Nadel-Turonski, P., Neupane, K., Niccolai, S., Osipenko, M., Ostrovidov, A. I., Pandey, P., Paolone, M., Pappalardo, L. L., Paremuzyan, R., Pasyuk, E., Paul, S. J., Pilleux, N., Pokhrel, M., Poudel, J., Price, J. W., Prok, Y., Radic, A., Ramasubramanian, N., Ratliff, S., Reed, T., Richards, J., Ripani, M., Ritchie, B. G., Ritman, J., Rosner, G., Salgado, C., Schadmand, S., Schott, D., Schumacher, R. A., Scott, M. B. C., Seely, M. L., Seroka, E. M., Shirokov, E. V., Shrestha, U., Sokhan, D., Sparveris, N., Spreafico, M., Strauch, S., Tan, J., Tyson, R., Ungaro, M., Vallarino, S., Venturelli, L., Voskanyan, H., Voutier, E., Wei, X., Williams, R., Wishart, R., Wood, M. H., Yurov, M., Zhang, J., and Zurek, M.

Published
2023
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37. An experimental program with high duty-cycle polarized and unpolarized positron beams at Jefferson Lab

Author

Accardi, A, Afanasev, A, Albayrak, I, Ali, SF, Amaryan, M, Annand, JRM, Arrington, J, Asaturyan, A, Atac, H, Avakian, H, Averett, T, Gayoso, C Ayerbe, Bai, X, Barion, L, Battaglieri, M, Bellini, V, Beminiwattha, R, Benmokhtar, F, Berdnikov, VV, Bernauer, JC, Bertone, V, Bianconi, A, Biselli, A, Bisio, P, Blunden, P, Boer, M, Bondì, M, Brinkmann, K-T, Briscoe, WJ, Burkert, V, Cao, T, Camsonne, A, Capobianco, R, Cardman, L, Carmignotto, M, Caudron, M, Causse, L, Celentano, A, Chatagnon, P, Chen, J-P, Chetry, T, Ciullo, G, Cline, E, Cole, PL, Contalbrigo, M, Costantini, G, D’Angelo, A, Darmé, L, Day, D, Defurne, M, De Napoli, M, Deur, A, De Vita, R, D’Hose, N, Diehl, S, Diefenthaler, M, Dongwi, B, Dupré, R, Dutrieux, H, Dutta, D, Ehrhart, M, El Fassi, L, Elouadrhiri, L, Ent, R, Erler, J, Fernando, IP, Filippi, A, Flay, D, Forest, T, Fuchey, E, Fucini, S, Furletova, Y, Gao, H, Gaskell, D, Gasparian, A, Gautam, T, Girod, F-X, Gnanvo, K, Grames, J, Grauvogel, GN, Gueye, P, Guidal, M, Habet, S, Hague, TJ, Hamilton, DJ, Hansen, O, Hasell, D, Hattawy, M, Higinbotham, DW, Hobart, A, Horn, T, Hyde, CE, Ibrahim, H, Ilyichev, A, Italiano, A, Joo, K, Joosten, SJ, Khachatryan, V, Kalantarians, N, and Kalicy, G

Subjects
Nuclear and Plasma Physics, Particle and High Energy Physics, Synchrotrons and Accelerators, Physical Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Nuclear & Particles Physics, Nuclear and plasma physics, Particle and high energy physics, Synchrotrons and accelerators
Abstract

Positron beams, both polarized and unpolarized, are identified as important ingredients for the experimental programs at the next generation of lepton accelerators. In the context of the hadronic physics program at Jefferson Lab (JLab), positron beams are complementary, even essential, tools for a precise understanding of the electromagnetic structure of nucleons and nuclei, in both the elastic and deep-inelastic regimes. For instance, elastic scattering of polarized and unpolarized electrons and positrons from the nucleon enables a model independent determination of its electromagnetic form factors. Also, the deeply-virtual scattering of polarized and unpolarized electrons and positrons allows unambiguous separation of the different contributions to the cross section of the lepto-production of photons and of lepton-pairs, enabling an accurate determination of the nucleons and nuclei generalized parton distributions, and providing an access to the gravitational form factors of the energy-momentum tensor. Furthermore, positron beams offer the possibility of alternative tests of the Standard Model of particle physics through the search of a dark photon, the precise measurement of electroweak couplings, and the investigation of charged lepton flavor violation. This document discusses the perspectives of an experimental program with high duty-cycle positron beams at JLab.

Published
2021

38. Body-worn triaxial accelerometer coherence and reliability related to static posturography in unilateral vestibular failure

Author

Alessandrini, M., Micarelli, A., Viziano, A., Pavone, I., Costantini, G., Casali, D., Paolizzo, F., and Saggio, G.

Subjects
Physics - Medical Physics, Computer Science - Information Retrieval
Abstract

Due to the fact that no study to date has shown the experimental validity of ACC-based measures of body sway with respect to posturography for subjects with vestibular deficits, the aim of the present study was: i) to develop and validate a practical tool that can allow clinicians to measure postural sway derangements in an otoneurological setting by ACC, and ii) to provide reliable, sensitive and accurate automatic analysis of sway that could help in discriminating unilateral vestibular failure (UVF) patients. Thus, a group of 13 patients (seven females, 6 males; mean age 48.6 +/- 6.4 years) affected for at least 6 months by UVF and 13 matched healthy subjects were instructed to maintain an upright position during a static forceplate-based posturography (FBP) acquisition while wearing a Movit sensor (by Captiks) with 3-D accelerometers mounted on the posterior trunk near the body centre of mass. Pearson product moment correlation demonstrated a high level of correspondence of four time-domain and three frequency-domain measures extracted by ACC and FBP testing; in addition, t-test demonstrated that two ACC-based time- and frequency-domain parameters were reliable measures in discriminating UVF subjects. These aspects, overall, should further highlight the attention of clinicians and researchers to this kind of sway recording technique in the field of otoneurological disorders by considering the possibility to enrich the amount of quantitative and qualitative information useful for discrimination, diagnosis and treatment of UVF. In conclusion, we believe the present ACC-based measurement of sway offers a patient-friendly, reliable, inexpensive and efficient alternative recording technique that is useful - together with clinical balance and mobility tests - in various circumstances, as well as in outcome studies involving diagnosis, follow-up and rehabilitation of UVF patients., Comment: 6 pages, 2 figures, 2 tables

Published
2019
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39. An experimental program with high duty-cycle polarized and unpolarized positron beams at Jefferson Lab

Author

Accardi, A, Afanasev, A, Albayrak, I, Ali, SF, Amaryan, M, Annand, JRM, Arrington, J, Asaturyan, A, Atac, H, Avakian, H, Averett, T, Gayoso, C Ayerbe, Bai, X, Barion, L, Battaglieri, M, Bellini, V, Beminiwattha, R, Benmokhtar, F, Berdnikov, VV, Bernauer, JC, Bertone, V, Bianconi, A, Biselli, A, Bisio, P, Blunden, P, Boer, M, Bondì, M, Brinkmann, K-T, Briscoe, WJ, Burkert, V, Cao, T, Camsonne, A, Capobianco, R, Cardman, L, Carmignotto, M, Caudron, M, Causse, L, Celentano, A, Chatagnon, P, Chen, J-P, Chetry, T, Ciullo, G, Cline, E, Cole, PL, Contalbrigo, M, Costantini, G, D'Angelo, A, Darmé, L, Day, D, Defurne, M, Napoli, M De, Deur, A, Vita, R De, D'Hose, N, Diehl, S, Diefenthaler, M, Dongwi, B, Dupré, R, Dutrieux, H, Dutta, D, Ehrhart, M, Fassi, L El, Elouadrhiri, L, Ent, R, Erler, J, Fernando, IP, Filippi, A, Flay, D, Forest, T, Fuchey, E, Fucini, S, Furletova, Y, Gao, H, Gaskell, D, Gasparian, A, Gautam, T, Girod, F-X, Gnanvo, K, Grames, J, Grauvoge, GN, Gueye, P, Guidal, M, Habet, S, Hague, TJ, Hamilton, DJ, Hansen, O, Hasell, D, Hattawy, M, Higinbotham, DW, Hobart, A, Horn, T, Hyde, CE, Ibrahim, H, Ilyichev, A, Italiano, A, Joo, K, Joosten, SJ, Khachatryan, V, Kalantarians, N, and Kalicy, G

Subjects
nucl-ex, hep-ex, hep-ph
Abstract

Positron beams, both polarized and unpolarized, are identified as essentialingredients for the experimental programs at the next generation of leptonaccelerators. In the context of the hadronic physics program at Jefferson Lab(JLab), positron beams are complementary, even essential, tools for a preciseunderstanding of the electromagnetic structure of nucleons and nuclei, in boththe elastic and deep-inelastic regimes. For instance, elastic scattering ofpolarized and unpolarized electrons and positrons from the nucleon enables amodel independent determination of its electromagnetic form factors. Also, thedeeply-virtual scattering of polarized and unpolarized electrons and positronsallows unambiguous separation of the different contributions to the crosssection of the lepto-production of photons and of lepton-pairs, enabling anaccurate determination of the nucleons and nuclei generalized partondistributions, and providing an access to the gravitational form factors.Furthermore, positron beams offer the possibility of alternative tests of theStandard Model of particle physics through the search of a dark photon, theprecise measurement of electroweak couplings, and the investigation of chargedlepton flavor violation. This document discusses the perspectives of anexperimental program with high duty-cycle positron beams at JLab.

Published
2020

40. Alignment of the CLAS12 central hybrid tracker with a Kalman Filter

Author

Paul, S.J., Peck, A., Arratia, M., Gotra, Y., Ziegler, V., De Vita, R., Bossù, F., Defurne, M., Atac, H., Gayoso, C. Ayerbe, Baashen, L., Baltzell, N.A., Barion, L., Bashkanov, M., Battaglieri, M., Bedlinskiy, I., Benkel, B., Benmokhtar, F., Bianconi, A., Biondo, L., Biselli, A.S., Bondi, M., Boiarinov, S., Brinkmann, K.-Th., Briscoe, W.J., Brooks, W.K., Bulumulla, D., Burkert, V.D., Capobianco, R., Carman, D.S., Carvajal, J.C., Chatagnon, P., Chesnokov, V., Chetry, T., Ciullo, G., Cole, P.L., Costantini, G., D’Angelo, A., Dashyan, N., Deur, A., Diehl, S., Djalali, C., Dupre, R., El Alaoui, A., El Fassi, L., Elouadrhiri, L., Filippi, A., Gates, K., Gavalian, G., Ghandilyan, Y., Gilfoyle, G.P., Golubenko, A.A., Gosta, G., Gothe, R.W., Griffioen, K., Guidal, M., Hakobyan, H., Hattawy, M., Hauenstein, F., Hayward, T.B., Heddle, D., Hobart, A., Holtrop, M., Ilieva, Y., Ireland, D.G., Isupov, E.L., Jo, H.S., Johnston, R., Joo, K., Keller, D., Khachatryan, M., Khanal, A., Kim, A., Kim, W., Klimenko, V., Kripko, A., Lanza, L., Leali, M., Lenisa, P., Li, X., MacGregor, I.J.D., Marchand, D., Marsicano, L., Mascagna, V., McKinnon, B., McLauchlin, C., Migliorati, S., Mineeva, T., Mirazita, M., Mokeev, V., Camacho, C. Munoz, Nadel-Turonski, P., Naidoo, P., Neupane, K., Nguyen, D., Niccolai, S., Nicol, M., Niculescu, G., Osipenko, M., Pandey, P., Paolone, M., Paremuzyan, R., Pilleux, N., Pogorelko, O., Pokhrel, M., Poudel, J., Price, J.W., Prok, Y., Reed, T., Ripani, M., Ritman, J., Sabatié, F., Schadmand, S., Schmidt, A., Shirokov, E.V., Shrestha, U., Simmerling, P., Sokhan, D., Sparveris, N., Spreafico, M., Strakovsky, I.I., Strauch, S., Tan, J.A., Tyson, R., Ungaro, M., Vallarino, S., Venturelli, L., Voskanyan, H., Voutier, E., Watts, D.P., Wei, X., Wishart, R., Wood, M.H., and Zachariou, N.

Published
2023
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41. Personality and conceptions of religiosity across the world's religions

Author

Baranski, E, Gardiner, G, Shaman, N, Shagan, J, Lee, D, Funder, D, Beramendi, M, Bastian, B, Neubauer, A, Cortez, D, Roth, E, Torres, A, Zanini, D, Petkova, K, Tracy, J, Amiot, C, Pelletier-Dumas, M, Gonzalez, R, Rosenbluth, A, Salgado, S, Guan, Y, Yang, Y, Forero, D, Camargo, A, Papastefanakis, E, Kritsotakis, G, Spyridaki, E, Fragkiadaki, E, Jerneic, Z, Hrebickova, M, Graf, S, Strobaek, P, Realo, A, Becker, M, Maisonneuve, C, El-Astal, S, Gamsakhurdia, V, Rauthmann, J, Ziegler, M, Penke, L, Buchtel, E, Yeung, V, Kun, A, Gadanecz, P, Vass, Z, Smohai, M, Mottola, F, Lavalekar, A, Das, A, Aurelia, M, Kinayung, D, Gaffar, V, Sullivan, G, Day, C, Rechter, E, Perugini, M, Costantini, G, Gnisci, A, Sergi, I, Senese, V, Sato, T, Nakata, Y, Kawamoto, S, Komiya, A, Al-Zoubi, M, Owsley, N, Jang, C, Mburu, G, Ngina, I, Dimdins, G, Barkauskiene, R, Laurinavicius, A, Mastor, K, Kruse, E, Ramirez-Esparza, N, Denissen, J, van Aken, M, Fischer, R, Onyishi, I, Ogba, K, Leknes, S, Holen, V, Hansen, I, Tamnes, C, Klaeva, K, Kausar, R, Khan, N, Rizwan, M, Espinosa, A, Gastardo-Conaco, M, Quinones, D, Izdebski, P, Kotysko, M, Szarota, P, Henriques-Calado, J, Sava, F, Lvova, O, Pogrebitskaya, V, Allakhverdov, M, Manichev, S, Barry, O, Smederevac, S, Colovic, P, Mitrovic, D, Oljaca, M, Hong, R, Halama, P, Musek, J, de Kock, F, Han, G, Suh, E, Choi, S, Gallardo-Pujol, D, Oceja, L, Villar, S, Kekecs, Z, Arlinghaus, N, Johnson, D, O'Donnell, A, Kulich, C, Lorenzi-Cioldi, F, Buhler, J, Allemand, M, Chang, Y, Lin, W, Boonyasiriwat, W, Saribay, S, Somer, O, Akalin, P, Baguma, P, Vinogradov, A, Zhuravlova, L, Conner, M, Rentfrow, J, Tullett, A, Sauerberger, K, Colman, D, Cheng, J, Stocks, E, Bui, H, Baranski E., Gardiner G., Shaman N., Shagan J., Lee D., Funder D., Beramendi M., Bastian B., Neubauer A., Cortez D., Roth E., Torres A., Zanini D. S., Petkova K., Tracy J., Amiot C., Pelletier-Dumas M., Gonzalez R., Rosenbluth A., Salgado S., Guan Y., Yang Y., Forero D., Camargo A., Papastefanakis E., Kritsotakis G., Spyridaki E., Fragkiadaki E., Jerneic Z., Hrebickova M., Graf S., Strobaek P., Realo A., Becker M., Maisonneuve C., El-Astal S., Gamsakhurdia V. L., Rauthmann J., Ziegler M., Penke L., Buchtel E. E., Yeung V. W. -L., Kun A., Gadanecz P., Vass Z., Smohai M., Mottola F., Lavalekar A., Das A., Aurelia M. Z., Kinayung D., Gaffar V., Sullivan G., Day C., Rechter E., Perugini M., Costantini G., Gnisci A., Sergi I., Senese V. P., Sato T., Nakata Y. I., Kawamoto S., Komiya A., Al-Zoubi M., Owsley N., Jang C., Mburu G., Ngina I., Dimdins G., Barkauskiene R., Laurinavicius A., Mastor K. A., Kruse E., Ramirez-Esparza N., Denissen J., van Aken M., Fischer R., Onyishi I. E., Ogba K. T., Leknes S., Holen V. W., Hansen I., Tamnes C. K., Klaeva K., Kausar R., Khan N., Rizwan M., Espinosa A., Gastardo-Conaco M. C., Quinones D. M. A., Izdebski P., Kotysko M., Szarota P., Henriques-Calado J., Sava F. A., Lvova O., Pogrebitskaya V., Allakhverdov M., Manichev S., Barry O., Smederevac S., Colovic P., Mitrovic D., Oljaca M., Hong R., Halama P., Musek J., de Kock F., Han G., Suh E. M., Choi S., Gallardo-Pujol D., Oceja L., Villar S., Kekecs Z., Arlinghaus N., Johnson D. P., O'Donnell A. K., Kulich C., Lorenzi-Cioldi F., Buhler J. L., Allemand M., Chang Y. -P., Lin W. -F., Boonyasiriwat W., Saribay S. A., Somer O., Akalin P. K., Baguma P. K., Vinogradov A., Zhuravlova L., Conner M., Rentfrow J., Tullett A., Sauerberger K., Colman D. E., Cheng J. T., Stocks E., Bui H. T. T., Baranski, E, Gardiner, G, Shaman, N, Shagan, J, Lee, D, Funder, D, Beramendi, M, Bastian, B, Neubauer, A, Cortez, D, Roth, E, Torres, A, Zanini, D, Petkova, K, Tracy, J, Amiot, C, Pelletier-Dumas, M, Gonzalez, R, Rosenbluth, A, Salgado, S, Guan, Y, Yang, Y, Forero, D, Camargo, A, Papastefanakis, E, Kritsotakis, G, Spyridaki, E, Fragkiadaki, E, Jerneic, Z, Hrebickova, M, Graf, S, Strobaek, P, Realo, A, Becker, M, Maisonneuve, C, El-Astal, S, Gamsakhurdia, V, Rauthmann, J, Ziegler, M, Penke, L, Buchtel, E, Yeung, V, Kun, A, Gadanecz, P, Vass, Z, Smohai, M, Mottola, F, Lavalekar, A, Das, A, Aurelia, M, Kinayung, D, Gaffar, V, Sullivan, G, Day, C, Rechter, E, Perugini, M, Costantini, G, Gnisci, A, Sergi, I, Senese, V, Sato, T, Nakata, Y, Kawamoto, S, Komiya, A, Al-Zoubi, M, Owsley, N, Jang, C, Mburu, G, Ngina, I, Dimdins, G, Barkauskiene, R, Laurinavicius, A, Mastor, K, Kruse, E, Ramirez-Esparza, N, Denissen, J, van Aken, M, Fischer, R, Onyishi, I, Ogba, K, Leknes, S, Holen, V, Hansen, I, Tamnes, C, Klaeva, K, Kausar, R, Khan, N, Rizwan, M, Espinosa, A, Gastardo-Conaco, M, Quinones, D, Izdebski, P, Kotysko, M, Szarota, P, Henriques-Calado, J, Sava, F, Lvova, O, Pogrebitskaya, V, Allakhverdov, M, Manichev, S, Barry, O, Smederevac, S, Colovic, P, Mitrovic, D, Oljaca, M, Hong, R, Halama, P, Musek, J, de Kock, F, Han, G, Suh, E, Choi, S, Gallardo-Pujol, D, Oceja, L, Villar, S, Kekecs, Z, Arlinghaus, N, Johnson, D, O'Donnell, A, Kulich, C, Lorenzi-Cioldi, F, Buhler, J, Allemand, M, Chang, Y, Lin, W, Boonyasiriwat, W, Saribay, S, Somer, O, Akalin, P, Baguma, P, Vinogradov, A, Zhuravlova, L, Conner, M, Rentfrow, J, Tullett, A, Sauerberger, K, Colman, D, Cheng, J, Stocks, E, Bui, H, Baranski E., Gardiner G., Shaman N., Shagan J., Lee D., Funder D., Beramendi M., Bastian B., Neubauer A., Cortez D., Roth E., Torres A., Zanini D. S., Petkova K., Tracy J., Amiot C., Pelletier-Dumas M., Gonzalez R., Rosenbluth A., Salgado S., Guan Y., Yang Y., Forero D., Camargo A., Papastefanakis E., Kritsotakis G., Spyridaki E., Fragkiadaki E., Jerneic Z., Hrebickova M., Graf S., Strobaek P., Realo A., Becker M., Maisonneuve C., El-Astal S., Gamsakhurdia V. L., Rauthmann J., Ziegler M., Penke L., Buchtel E. E., Yeung V. W. -L., Kun A., Gadanecz P., Vass Z., Smohai M., Mottola F., Lavalekar A., Das A., Aurelia M. Z., Kinayung D., Gaffar V., Sullivan G., Day C., Rechter E., Perugini M., Costantini G., Gnisci A., Sergi I., Senese V. P., Sato T., Nakata Y. I., Kawamoto S., Komiya A., Al-Zoubi M., Owsley N., Jang C., Mburu G., Ngina I., Dimdins G., Barkauskiene R., Laurinavicius A., Mastor K. A., Kruse E., Ramirez-Esparza N., Denissen J., van Aken M., Fischer R., Onyishi I. E., Ogba K. T., Leknes S., Holen V. W., Hansen I., Tamnes C. K., Klaeva K., Kausar R., Khan N., Rizwan M., Espinosa A., Gastardo-Conaco M. C., Quinones D. M. A., Izdebski P., Kotysko M., Szarota P., Henriques-Calado J., Sava F. A., Lvova O., Pogrebitskaya V., Allakhverdov M., Manichev S., Barry O., Smederevac S., Colovic P., Mitrovic D., Oljaca M., Hong R., Halama P., Musek J., de Kock F., Han G., Suh E. M., Choi S., Gallardo-Pujol D., Oceja L., Villar S., Kekecs Z., Arlinghaus N., Johnson D. P., O'Donnell A. K., Kulich C., Lorenzi-Cioldi F., Buhler J. L., Allemand M., Chang Y. -P., Lin W. -F., Boonyasiriwat W., Saribay S. A., Somer O., Akalin P. K., Baguma P. K., Vinogradov A., Zhuravlova L., Conner M., Rentfrow J., Tullett A., Sauerberger K., Colman D. E., Cheng J. T., Stocks E., and Bui H. T. T.

Abstract

Research assessing personality traits and religiosity across cultures has typically neglected variation across religious affiliations and has been limited to a small number of personality traits. This study examines the relationship between the Big Five personality traits and their facets, two theoretically distinct measures of religiosity, and twelve other personality traits across seven religious affiliations and 61 countries/regions. The proportion of participants following a religion varied substantially across countries (e.g., Indonesia = 99%; Estonia = 7%). Both measures of religiosity were related to agreeableness, conscientiousness, happiness, and fairness; however; relations with religiosity as a social axiom were stronger and less variable across religious affiliations. Additionally, personality-religiosity links were more robust in low-development, high-conflict, and collectivist nations.

Published
2024

42. High economic inequality is linked to greater moralization

Author

Kirkland, K, Van Lange, P, Gorenz, D, Blake, K, Amiot, C, Ausmees, L, Baguma, P, Barry, O, Becker, M, Bilewicz, M, Boonyasiriwat, W, Booth, R, Castelain, T, Costantini, G, Dimdins, G, Espinosa, A, Finchilescu, G, Fischer, R, Friese, M, Gómez, Á, González, R, Goto, N, Halama, P, Hurtado-Parrado, C, Ilustrisimo, R, Jiga-Boy, G, Kuppens, P, Loughnan, S, Mastor, K, Mclatchie, N, Novak, L, Onyekachi, B, Rizwan, M, Schaller, M, Serafimovska, E, Suh, E, Swann, W, Tong, E, Torres, A, Turner, R, Vauclair, C, Vinogradov, A, Wang, Z, Yeung, V, Bastian, B, Kirkland K., Van Lange P. A. M., Gorenz D., Blake K., Amiot C. E., Ausmees L., Baguma P., Barry O., Becker M., Bilewicz M., Boonyasiriwat W., Booth R. W., Castelain T., Costantini G., Dimdins G., Espinosa A., Finchilescu G., Fischer R., Friese M., Gómez Á., González R., Goto N., Halama P., Hurtado-Parrado C., Ilustrisimo R. D., Jiga-Boy G. M., Kuppens P., Loughnan S., Mastor K. A., McLatchie N., Novak L. M., Onyekachi B. N., Rizwan M., Schaller M., Serafimovska E., Suh E. M., Swann W. B., Tong E. M. W., Torres A., Turner R. N., Vauclair C. M., Vinogradov A., Wang Z., Yeung V. W. L., Bastian B., Kirkland, K, Van Lange, P, Gorenz, D, Blake, K, Amiot, C, Ausmees, L, Baguma, P, Barry, O, Becker, M, Bilewicz, M, Boonyasiriwat, W, Booth, R, Castelain, T, Costantini, G, Dimdins, G, Espinosa, A, Finchilescu, G, Fischer, R, Friese, M, Gómez, Á, González, R, Goto, N, Halama, P, Hurtado-Parrado, C, Ilustrisimo, R, Jiga-Boy, G, Kuppens, P, Loughnan, S, Mastor, K, Mclatchie, N, Novak, L, Onyekachi, B, Rizwan, M, Schaller, M, Serafimovska, E, Suh, E, Swann, W, Tong, E, Torres, A, Turner, R, Vauclair, C, Vinogradov, A, Wang, Z, Yeung, V, Bastian, B, Kirkland K., Van Lange P. A. M., Gorenz D., Blake K., Amiot C. E., Ausmees L., Baguma P., Barry O., Becker M., Bilewicz M., Boonyasiriwat W., Booth R. W., Castelain T., Costantini G., Dimdins G., Espinosa A., Finchilescu G., Fischer R., Friese M., Gómez Á., González R., Goto N., Halama P., Hurtado-Parrado C., Ilustrisimo R. D., Jiga-Boy G. M., Kuppens P., Loughnan S., Mastor K. A., McLatchie N., Novak L. M., Onyekachi B. N., Rizwan M., Schaller M., Serafimovska E., Suh E. M., Swann W. B., Tong E. M. W., Torres A., Turner R. N., Vauclair C. M., Vinogradov A., Wang Z., Yeung V. W. L., and Bastian B.

Abstract

Throughout the 21st century, economic inequality is predicted to increase as we face new challenges, from changes in the technological landscape to the growing climate crisis. It is crucial we understand how these changes in inequality may affect how people think and behave. We propose that economic inequality threatens the social fabric of society, in turn increasing moralization—that is, the greater tendency to employ or emphasize morality in everyday life—as an attempt to restore order and control. Using longitudinal data from X, formerly known as Twitter, our first study demonstrates that high economic inequality is associated with greater use of moral language online (e.g. the use of words such as “disgust”, “hurt”, and “respect’). Study 2 then examined data from 41 regions around the world, generally showing that higher inequality has a small association with harsher moral judgments of people’s everyday actions. Together these findings demonstrate that economic inequality is linked to the tendency to see the world through a moral lens.

Published
2024

43. Upgrade of ASACUSA’s antihydrogen detector

Author

Kraxberger, V., Amsler, C., Breuker, H., Chesnevskaya, S., Costantini, G., Ferragut, R., Giammarchi, M., Gligorova, A., Gosta, G., Higaki, H., Hunter, E.D., Killian, C., Kletzl, V., Kuroda, N., Lanz, A., Leali, M., Mäckel, V., Maero, G., Malbrunot, C., Mascagna, V., Matsuda, Y., Migliorati, S., Murtagh, D.J., Nagata, Y., Nanda, A., Nowak, L., Pasino, E., Romé, M., Simon, M.C., Tajima, M., Toso, V., Ulmer, S., Venturelli, L., Weiser, A., Widmann, E., Wolz, T., Yamazaki, Y., and Zmeskal, J.

Published
2023
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44. Injection and capture of antiprotons in a Penning–Malmberg trap using a drift tube accelerator and degrader foil

Author

Amsler, C., primary, Breuker, H., additional, Bumbar, M., additional, Chesnevskaya, S., additional, Costantini, G., additional, Ferragut, R., additional, Giammarchi, M., additional, Gligorova, A., additional, Gosta, G., additional, Higaki, H., additional, Hori, M., additional, Hunter, E.D., additional, Killian, C., additional, Kraxberger, V., additional, Kuroda, N., additional, Lanz, A., additional, Leali, M., additional, Maero, G., additional, Malbrunot, C., additional, Mascagna, V., additional, Matsuda, Y., additional, Mäckel, V., additional, Migliorati, S., additional, Murtagh, D.J., additional, Nagata, Y., additional, Nanda, A., additional, Nowak, L., additional, Romé, M., additional, Simon, M.C., additional, Tajima, M., additional, Toso, V., additional, Ulmer, S., additional, Venturelli, L., additional, Weiser, A., additional, Widmann, E., additional, and Yamazaki, Y., additional

Published
2024
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47. Comparisons of Daily Behavior Across 21 Countries

Author

Baranski, EN, Gardiner, G, Guillaume, E, Aveyard, M, Bastian, B, Bronin, I, Ivanova, C, Cheng, JT, Kock, FSD, Denissen, JJA, Gallardo-Pujol, D, Halama, P, Han, GQ, Bae, J, Moon, J, Hong, RY, Hřebíčková, M, Graf, S, Izdebski, P, Lundmann, L, Penke, L, Perugini, M, Costantini, G, Rauthmann, J, Ziegler, M, Realo, A, Elme, L, Sato, T, Kawamoto, S, Szarota, P, Tracy, JL, Aken, MAGV, Yang, Y, and Funder, DC

Subjects
cross-cultural, behavior, Riverside Behavioral Q-sort, personality, Basic Behavioral and Social Science, Mental Health, Behavioral and Social Science, Prevention, Psychology
Abstract

While a large body of research has investigated cultural differences in behavior, this typical study assesses a single behavioral outcome, in a single context, compared across two countries. The current study compared a broad array of behaviors across 21 countries (N = 5,522). Participants described their behavior at 7:00 p.m. the previous evening using the 68 items of the Riverside Behavioral Q-sort (RBQ). Correlations between average patterns of behavior in each country ranged from r =.69 to r =.97 and, in general, described a positive and relaxed activity. The most similar patterns were United States/Canada and least similar were Japan/United Arab Emirates (UAE). Similarities in behavior within countries were largest in Spain and smallest in the UAE. Further analyses correlated average RBQ item placements in each country with, among others, country-level value dimensions, personality traits, self-esteem levels, economic output, and population. Extroversion, openness, neuroticism, conscientiousness, self-esteem, happiness, and tolerant attitudes yielded more significant correlations than expected by chance.

Published
2017

49. Global disparities in surgeons’ workloads, academic engagement and rest periods: the on-calL shIft fOr geNEral SurgeonS (LIONESS) study

Author

Podda, M, Di Martino, M, Pata, F, Nigri, G, Pisanu, A, Di Saverio, S, Pellino, G, Ielpo, B, Null, N, Tolla, A, Abdelkhalek, M, Emile, S, Dinagde, T, Bouzid, C, Mansour, A, Garzali, I, Aregawi, A, Zaghloul, T, Kchaou, A, Awad, S, Souadka, A, Ted, T, Saumtally, M, Ahmed, B, Bayileyegn, N, Nunziante, M, Shalaby, M, Debena, D, Zena, A, Adewunmi, O, Negasa, T, Bourguiba, M, Feituri, N, Kebede, K, Elfeki, H, Anas, A, Awad, A, Ermias, N, Hailemariam, D, Bejiga, G, Imana, R, Taffese, A, Feleke, T, Elghadban, H, Debela, B, Shiferaw, D, Tadesse, R, Chukwu, I, Mohammed, A, Hassen, K, Obiagwu, N, Tense, T, Taeme, M, Biniam, E, Tesfay, G, Tegegn, A, Teddy, T, Bekana, B, Nidaw, M, Ali, M, Gonfa, K, Kiros, S, Belay, T, Yallew, G, Wassie, C, Ayalew, A, Asfaw, F, Aimal, A, Casas, M, Madrid, F, Diaz-Elizondo, J, Merlo, I, De Campos, T, Schlottmann, F, Gomes, C, Hernández, E, Moncada-Ortega, A, Ramos-De la Medina, A, Vanerio, P, Morales, E, Stringfield, S, Gallardo, C, Fonseca, V, Muriel, M, Cantarino, F, Fichera, A, Rodriguez, A, Salinas, R, Crosbie, G, Menegozzo, C, Avellaneda, N, Briones, C, Varela, C, Lichliter, W, Koppel, D, Lenz, J, Pascual, F, Sibaja-Matamoros, D, Johnson, B, Mercado, O, Tita, A, Mukherjee, I, Lorenzo, I, Rueda, E, Rico, D, Terwes, N, Visag-Castillo, V, Escalante, K, Salvador, A, Pio, L, Rodas, E, Aguilar, J, Neri, I, Barzola, E, Barba, L, Zuchini, A, Acevedo, A, Gachabayov, M, Gonsaga, R, Bonilla, F, Knickerbocker, C, Tsouknidas, I, Salamea, J, Travers, L, Nari, G, Pachajoa, D, Valadez, M, Hale, L, Perez, G, Choudhry, A, Foreman, M, Brito, I, Ciro, M, Newton, C, Souza, H, Davis, D, Ferreira, R, Keller, D, Miguel, G, Singh-Ranger, G, Linares, N, Singares, E, Valdivieso, X, Teran, A, Vargas, L, Valinoti, A, Milne, D, Fleming, A, Quiroga-Garza, A, Espino, E, Bedros, N, Funk, G, Neves, F, Supit, T, Baba, A, Chalkoo, M, Kucuk, G, Sarmiento, R, Galeev, S, Korkoman, M, Yang, W, Medappil, N, Athar, R, Subramaniam, R, Chia, C, Alhazmi, A, Halder, S, Rusli, S, Rashid, A, Gülcü, B, Nagarajan, P, Rida, K, Jamiri, A, Batıkan, O, Khan, H, Mitul, A, Efetov, S, Junior, M, Gulcu, B, Farooqui, M, Mulpuri, V, Bagaria, D, Yusoff, A, Wani, R, Younis, M, Khobragade, K, Marwat, M, Bains, L, Kobe, Y, Koh, P, Tantravahi, U, Mohamad Mohamad, I, Abu-Arish, H, Yildirim, A, Ibrahim, A, Tan, J, Siagian, D, Bhattacharya, N, Chiu, J, Paramasvaran, G, Voon, K, Göktepe, B, Lee, L, Gupta, A, Rasheed, F, Al-Shehari, M, Syed, S, Bhat, P, Erdoğan, E, Roat, R, Nacion, A, Saraiya, S, Afolabi, A, Chai, F, Ghannam, W, Bhattacharya, K, Nl, H, Aloun, A, Bhatti, H, Koneti, A, Klib, M, Qureshi, A, Syn, N, Wani, A, Saeidi, S, Zeb, M, Bandaru, K, Menna, M, Morales-Conde, S, Gessa, E, Sánchez-Cabús, S, Spartalis, E, Antropoli, C, Manigrasso, M, Sica, G, Ercolani, G, Chitul, A, Bacchiocchi, G, Azevedo, J, Karamarkovic, A, Bonavina, L, Piozzi, G, Migueláñez, I, Merlini, D, Major, P, Grimaldi, L, Calu, V, Curro, G, Cotsoglou, C, Baldini, E, Delis, S, Kovacevic, B, Masetti, M, Selvaggi, F, Scabini, S, Reiti, A, Zullo, A, Giuliani, A, Alesina, P, Massey, L, Slesser, A, Neary, P, Sahnan, K, Colucci, G, Brady, R, Mihailescu, A, Adamina, M, Gerogiannis, I, van Ramshorst, G, Paradiso, G, Poto, G, Massaro, D, Nazir, F, Stubbs, B, Tasselli, F, Muñoz-Cruzado, V, Sabia, D, Vannelli, A, Marsella, V, Tomada, E, Giambusso, M, Davies, J, Uzzau, A, Balla, A, Scaringi, S, Lancellotti, F, Douka, E, Argenio, G, Cassese, G, Ammendola, M, Morelli, L, Francone, E, Bala, M, Thambi, P, Iacobone, M, Campisi, A, Tejedor, P, Spoletini, G, Mascherini, M, Belia, F, Idiz, U, Colak, E, Peters, P, Ros, E, Aytac, E, Vilallonga, R, Serrablo, A, Muttillo, E, Di Franco, G, Vanni, G, Isik, A, Sbacco, V, Tropeano, F, Porcellini, I, Butler, R, Fernandez, C, Papadopoulos, A, Salvans, S, Khan, J, Bellver, P, Mc Farlane, S, Apostolou, K, Tur-Martinez, J, Castellano, J, Santoliquido, M, Tallon-Aguilar, L, Celentano, V, Aliyev, V, al-Najami, I, Grama, F, Masior, Ł, Ciesielski, W, Luberto, A, Sparavigna, M, Klimczak, T, Negoi, I, Serradilla-Martín, M, Marinis, A, Cammarat, R, Bellido-luque, J, Manzo, C, Milana, F, Luglio, G, Zarnescu, N, Martínez, I, Olmi, S, Costea, R, Cerdán-Santacruz, C, Gica, N, Rompianesi, G, Gallo, G, Ridolfi, C, Sahid, S, Cc, T, López-Soler, G, Díaz, C, Mccawley, N, Luzzi, A, Abelló, D, Bonito, A, Ntomi, V, Gourgiotis, S, Pazos, N, Toscano, M, Zafra, D, Beisani, M, Oliva, A, Guler, M, Gómez, M, Oddis, L, Montcusí, B, Delgado, A, Lasarte, M, Antonacci, N, Sartori, A, Taylor, J, de Santos Iglesias, F, Mastronardi, M, Gunay, E, Yiu, A, Cano-Valderrama, O, Costantini, G, Digne-Malcolm, H, Petropoulou, T, Horesh, N, Kelly, M, Ahmed, N, Wyroslak-Najs, J, Naik, P, Vigorita, V, Michael, M, Castro, E, Paspala, A, D'Ambrosio, M, Pangeni, A, Dziakova, J, Terés, L, Lorente-Poch, L, Di Carlo, I, Spartalis, M, Moro-Valdezate, D, Davey, M, Turrado-Rodriguez, V, Tryliskyy, Y, Calussi, M, Farré, S, Labat, M, Marafante, C, Takkenberg, M, Brookes, C, Soares, A, Gialamas, E, Caputo, D, Corrons, L, Capitano, S, Charalabopoulos, A, Don, C, Marrano, E, Giuffrida, M, Tomasicchio, G, Bellato, V, Stijns, J, Creavin, B, Schizas, D, Blanco-Antona, F, Kykalos, S, Tartaglia, N, Pelegrina, A, Barranquero, A, Schena, C, Cremona, S, Baili, E, Cianci, P, Di Bella, A, Forcignanò, E, Fabbrizio, T, Salvetti, F, Inama, M, Campagnaro, T, Deerenberg, E, Reccia, I, Rocca, A, Fazio, F, Tampakis, A, Tepelenis, K, Di Meo, G, Konstantoudakis, G, Manatakis, D, Mineccia, M, Delvecchio, A, Faro, C, Rosso, E, Bandyopadhyay, S, Queffurus, M, Marin, J, Corvasce, A, Chillarge, G, Mohammed, M, Reid, R, Gherardi, D, Naeem, A, Pandanaboyana, S, Tayeh, S, Chevallay, M, Sergeant, G, Cuccomarino, S, Salimian, N, Kapsampelis, P, Ferretti, C, Glasbey, J, Harvitkar, R, Iqbal, M, de Oliveira, G, Pérez-Bertólez, S, Bergna, A, Brisinda, G, Rottoli, M, Roscio, F, Pedrazzani, C, Meyer, J, Marino, M, Brasset, C, Daniel, C, Devriendt, S, Soldini, G, Pennisi, D, Richards, C, Fiore, F, Bocchino, A, Au, S, Hernandez-Garcia, M, Frontali, A, Grossi, U, Lolis, E, Miotto, M, Di Filippo, G, Seretis, C, Barberis, A, De Luca, R, Levi Sandri, G, Reitano, E, Mattioli, M, Sciaudone, G, Fuschillo, G, Schiltz, B, Low, J, Bointas, G, Cozza, V, Delaune, V, Vescio, F, Curcio, S, Sevik, H, Santocchi, P, Stecca, T, Balaphas, A, Chessa, A, Leo, C, di Mola, F, Tarallo, M, Martini, F, Lisi, G, Khan, M, Nicolazzi, M, Pinotti, E, Morini, A, Esposito, G, Buonomo, O, Corallino, D, Demir, A, Roesel, R, De Lucia, C, Maruccia, M, Tekin, O, Pavone, G, Pradelle, I, Chrysikos, M, Farrukh, M, Baiocchi, G, Piras, C, Abellán, A, Olivieri, L, Materazzo, M, Carbone, L, Dulskas, A, Mulita, F, Corronca, F, Cappuccio, M, Smerieri, E, Sotiropoulu, M, Violante, T, Moletta, L, Rutegård, M, Brillantino, A, Landaluce-Olavarria, A, Ossola, P, Bono, D, Rosés, H, Perez-Sanchez, L, Sabbatini, S, Scotti, M, Cammarata, R, Ibáñez, N, Marano, A, Palmisano, S, Cascales-Sanchez, P, Mosca, V, Ballester, C, Iordache-Petrescu, M, Pozza, G, Akay, O, Bollino, R, Toti, J, Mascianà, G, Pach, R, Sensi, B, Natalia, S, Coppola, A, Altinel, Y, Brucchi, F, Guitart, M, Salido, A, Tamini, N, Garoufalia, Z, Mifsut, P, Wilkins, A, Navarro-Sánchez, A, Cestaro, G, Conti, L, Carvas, J, Gazia, C, Alonso, P, Spiezio, G, Maggi, G, Juloski, J, Braccio, B, Pañella, C, Freixa, C, Petrakis, G, Folliero, C, De Andrés-Asenjo, B, Iodice, A, Jansson, H, González, T, Ortega, I, Castro, M, Fernicola, A, Aparicio, A, Ortega, N, Chouliaras, C, Tura, M, Sidiropoulou, Z, Gonzalez, A, Augustin, G, Segura-Sampedro, J, Cuk, V, Piccolo, G, Ingallinella, S, Ortenzi, M, Uggeri, F, Carrabetta, S, Tolonen, M, Formisano, G, Manfredelli, S, Perra, T, Esposito, F, Perrone, G, Zacharis, G, Menéndez, J, Bottcher, S, Ioannidis, O, Borges, N, Sousa, X, Colombari, R, Tellez, C, Capolupo, G, Giuliani, G, Mastella, F, González, L, Merlini, I, Ghignone, F, de Sa, T, Mangana, O, Rodriguez-Lopez, M, Alvarez-Gallego, M, Chowdhury, A, Di Lascio, P, Carneros, V, Angrisani, M, Conte, L, Montiel, C, Ascari, F, Dajti, I, Lapolla, P, Sperotto, B, Mazzarella, G, Capuano, M, Lopez, M, Ferrario, L, Bulte, J, López, M, Guerci, C, Marra, A, Belkacem, A, Pérez, R, Panyko, A, Dimitrov, E, Luque, E, Manrique, M, Paranyak, M, Kaur, M, Barugola, G, Farazi-Chongouki, C, Estaire-Gómez, M, del Olmo, J, Nardo, B, Mutlu, A, Rubio, A, Marchegiani, F, Cereda, M, Vinci, D, Komaei, I, Petrucciani, N, Seyfried, S, Krsicka, P, Medas, F, Lesko, D, Murzi, V, Siragusa, L, Guerrero, M, Iranzo, M, Cestino, L, Pasculli, A, Smerieri, N, Benzoni, I, Festa, F, Jordão, D, Licardie, E, Nicolaescu, D, Balassone, V, La Vaccara, V, Romano, F, Adamovich, D, Papatheodorou, P, Maroni, N, Colás-Ruiz, E, Melberga, L, Chimenti, F, Ferrari, D, Arcudi, C, Police, A, De Simone, B, Sánchez-Guillén, L, Parreño-Manchado, F, Rachadell, J, Coletta, D, Saroglu, A, Pattacini, G, Antonelli, A, Anania, M, Litta, F, Lafranceschina, S, Bottari, A, Pavlovic, M, Rojas-Bonet, N, Tampaki, E, Kosir, J, Anelli, F, de las Casas, S, Kucukarslan, R, Pierobon, E, Milanesi, M, Drogouti, M, Sotiropoulou, M, Di Marco, F, Bannone, E, Sliwinski, S, Yildiz, I, Pellicciaro, M, Celotti, A, Malerba, M, Marino, F, Bourmpouteli, E, Bianco, G, Charitaki, E, Pascale, M, Ioannidis, A, Maraska, F, Petagna, L, Turri, G, Vailas, M, Romanzi, A, Pouwels, S, Rosa, F, Clocchiatti, L, Andreuccetti, J, Machairas, N, Frountzas, M, Lasithiotakis, K, Barone, M, Christodoulou, P, Potkonjak, D, Aiolfi, A, de Vries, H, Napetti, S, Castaldi, A, Botelho, P, Marziali, I, Uccelli, M, Pisano, M, Veroux, M, Locci, E, Romano, A, Cero, M, Cicerchia, P, Baldi, C, Russo, I, Tenconi, S, Saliu, F, Bondurri, A, Cardinali, L, Laracca, G, Martín-Pérez, B, Felsenreich, D, Cunha, M, Zerbo, D, Clementi, M, Delogu, D, Iossa, A, Bavikatte, A, Saracoglu, C, Pecorelli, N, Tufo, A, Biloslavo, A, Lianos, G, Carannante, F, Costanzo, A, Montuori, M, Cigognini, M, Silvestro, R, Atici, S, Milito, P, Ferronetti, A, Güngör, M, Di Venere, B, Puccioni, C, De Nobili, G, Selvaggi, L, Farolfi, T, Aeschbacher, P, Olivier, J, Frazzetta, G, Andriola, V, Giordano, A, De Luca, A, Ferrara, F, Casagranda, B, Sammartano, F, Russo, A, Rossi, S, Pacilli, M, Synekidou, E, Tutino, R, Ceresoli, M, De Rosa, M, Di Santo Albini, A, Vincenzi, P, Vellei, S, Benzoni, E, Murillo, G, Izzo, G, Scotto, B, Caruso, R, Colombo, F, D'Acapito, F, Lostoridis, E, Saladino, E, Poillucci, G, Moeckli, B, Manto, O, Kara, Y, Tatar, C, Cioffi, S, Mambrilla, S, Bianchi, V, Scopelliti, M, Agresta, F, Nava, A, Franchi, E, Fransvea, P, Prieto, M, Picardi, B, Rizzuto, A, Panaccio, P, Gussago, S, Marra, E, Addeo, P, Fernández Fernández, J, Gulmez, M, Pisaniello, D, Cannavo, M, López-López, V, Avella, P, Peloso, A, Bellanova, G, Candilio, G, Perotti, B, Granata, R, Florio, G, Ioia, G, Iannone, I, Ammerata, G, Zambon, M, Del Monte, S, Sasia, D, Fortuna, L, Litvin, A, Cannistra, M, De Padua, C, Sánchez, T, Paniagua-Garcia-Señorans, M, Guevara, J, Perfecto, A, Alconchel, F, Campanelli, M, Keci, L, Cricrì, M, Kampouroglou, G, Bagaglini, G, Farrarons, S, Greco, A, Walędziak, M, Serrano-Navidad, M, Van Doorn, B, Schiavo, C, Fabbri, N, Wani, I, Mondi, I, Anestiadou, E, Mendes, B, Verdi, D, Dorovinis, P, Cacciaguerra, A, Caldeira, B, Canonico, G, Dardanov, D, D'Ugo, S, Francis, F, Meneghini, S, Pesce, A, Puglisi, S, Bellini, M, Giordano, M, Fleres, F, Campus, F, Cillara, N, Moggia, E, Ciarleglio, F, Calini, G, Gravante, G, De Carlis, R, Altomare, M, Martines, G, Miggino, M, Marano, L, Stocco, A, Porcu, A, Pham, T, Gervasi, M, Pilia, T, Palomba, G, Picchetto, A, Spampinato, M, Tandoi, F, Piccoli, M, Gall, M, Santos, B, Agastra, E, Koëter, T, Samadov, E, Marsanic, P, Serena, D, Uzunoglu, M, Zanus, G, Braholli, E, Giovine, G, Galiffa, G, Lauricella, S, Lukmonov, S, Leventoglu, S, Chooklin, S, Dudi-Venkata, N, Gauci, C, Podda, Mauro, Di Martino, Marcello, Pata, Francesco, Nigri, Giuseppe, Pisanu, Adolfo, Di Saverio, Salomone, Pellino, Gianluca, Ielpo, Benedetto, null, null, Tolla, Ashenafi Negash, Abdelkhalek, Mohamed, Emile, Sameh, Dinagde, Tesfaye Aga, Bouzid, Chafik, Mansour, Ahmed Mohammed Farid Mahmoud, Garzali, Ibrahim Umar, Aregawi, Alazar Berhe, Zaghloul, Tarek M., Kchaou, Ali, Awad, Selmy S., Souadka, Amine, Ted, Tedla Gebretsadik, Saumtally, Mohammad Saad, Ahmed, Bensaad, Bayileyegn, Nebiyou Simegnew, Nunziante, Marco, Shalaby, Mostafa, Debena, Dawit Gebregiorgis, Zena, Alemayehu Shanko, Adewunmi, Olayinka Lukman, Negasa, Tolera A., Bourguiba, Mohamed Aboulkacem, Feituri, Nura, Kebede, Kirubel Abebe, Elfeki, Hossam, Anas, Abdelhmed, Awad, Ahmed K., Ermias, Nebiyou, Hailemariam, Dagnachew H., Bejiga, Gosa Hundie, Imana, Ruhama Yoseph, Taffese, Abebe, Feleke, Tsega Terefe, Elghadban, Hosam Mohamed, Debela, Bizuneh Sime, Shiferaw, Desta, Tadesse, Robel, Chukwu, Isaac Sunday, Mohammed, Abdullahi Ibrahim, Hassen, Khalid Arebo, Obiagwu, Ndubuisi K., Tense, Tadesse H., Taeme, Mulugeta, Biniam, Ewnte, Tesfay, Goytom Knfe, Tegegn, Ayenachew Getachew, Teddy, Tewodros Abule Bilata, Bekana, Bekana L., Nidaw, Melkamu Kibret, Ali, Mahmoud Ibrahim, Gonfa, Kebebe Bekele, Kiros, Samuel, Belay, Tatek, Yallew, Gebeyaw Mengist, Wassie, Chekol, Ayalew, Alem Mekete, Asfaw, Fitsum Terefe, Aimal, Aimal Khan, Casas, Maria Agustina, Madrid, Fausto A., Diaz-Elizondo, Jose Antonio, Merlo, Ignacio Guillermo, De Campos, Tercio, Schlottmann, Francisco, Gomes, Carlos Augusto, Hernández, Edgard Efrén Lozada, Moncada-Ortega, Augusto, Ramos-De la Medina, Antonio, Vanerio, Patricio, Morales, Emilio J., Stringfield, Sarah Beth, Gallardo, Cristian, Fonseca, Vinicius Cordeiro, Muriel, Maria Emilia, Cantarino, Frederico, Fichera, Alessandro, Rodriguez, Agustin E., Salinas, Roberto Paúl Andrade, Crosbie, Gonzalo Gabriel, Menegozzo, Carlos Augusto Metidieri, Avellaneda, Nicolas, Briones, Cristhian Gonzalo Aspiazu, Varela, Cristopher, Lichliter, Warren E., Varela, Cristopher L., Koppel, Darren, Lenz, Jorge Godoy, Pascual, Franco, Sibaja-Matamoros, Dauber A., Johnson, Benjamin E., Mercado, Octavio Avila, Tita, Agustín, Mukherjee, Indraneil, Lorenzo, Irving, Rueda, Erick, Rico, Douglas, Terwes, Natasha Loria, Visag-Castillo, Victor, Escalante, Karol S., Salvador, Alan Francisco Alfaro, Pio, Luca, Rodas, Edgar B., Aguilar, Juan Carlos Cardozo, Neri, Ignacio, Barzola, Ernesto J., Barba, Leonardo A., Zuchini, Andrés Mendoza, Acevedo, Ana Karen Radilla, Gachabayov, Mahir, Gonsaga, Ricardo Alessandro Teixeira, Bonilla, Fernando, Knickerbocker, Chase Barrett, Tsouknidas, Ioannis, Salamea, Juan C., Travers, Lawrence Albert Salter, Nari, Gustavo Adrian, Pachajoa, Diana Alejandra Pantoja, Valadez, Michel Hernandez, Hale, Lyman Lansing, Perez, Guillermo, Choudhry, Asad, Foreman, Michaael L., Brito, Ismael, Ciro, Mauricio Pedraza, Newton, Carla Joyce, Souza, Hamilton Petry, Davis, Daniel G., Ferreira, Rodrigo Vaz, Keller, Deborah S., Miguel, Gustavo Machain, Singh-Ranger, Gurpreet, Linares, Neiling Massiel Oviedo, Singares, Eduardo Smith, Valdivieso, Xavier HGarcía, Teran, Alfonso Ivan Sanchez, Vargas, Luis Felipe Cabrera, Valinoti, Agustín, Milne, David M., Fleming, Andrew Martin, Quiroga-Garza, Alejandro, Espino, Eduardo Morales, Bedros, Nicole Mary, Funk, Geoffrey A., Neves, Fernanda V. S., Supit, Tommy, Baba, Arshad Ahmed, Chalkoo, Mushtaq A., Kucuk, Gultekin Ozan, Sarmiento, Ray Inocencio, Galeev, Shamil I., Korkoman, Mohammed J., Yang, Wah, Medappil, Noushif, Athar, Rahmatullah, Subramaniam, Ravichandran, Chia, Chi Fung, Alhazmi, Ahmad, Halder, Subhadip, Rusli, Siti Mayuha, Rashid, Arshad, Gülcü, Barış, Nagarajan, Prasanth, Rida, Khaled, Jamiri, Al-Radjid, Batıkan, Oğuzkağan, Khan, Huma Ahmed, Mitul, Ashrarur Rahman, Efetov, Sergey, Junior, Marcelo A. F. Ribeiro, Gulcu, Baris, Farooqui, Marryam Riaz, Mulpuri, Venu Bhargava, Bagaria, Dinesh, Yusoff, Ahmad Ramzi, Wani, Rauf, Younis, Muhammad Umar, Khobragade, Krunal H., Marwat, Muhammad Ibrahim, Bains, Lovenish, Kobe, Yoshiro, Koh, Peng Soon, Tantravahi, Umasankar, Mohamad Mohamad, Ikhwan Sani, Abu-Arish, Hamdoon, Yildirim, Ali Cihat, Ibrahim, Aini Fahriza, Tan, Jih Huei, Siagian, Dumaria Ketty, Bhattacharya, Neela, Chiu, Jennifer H. F., Paramasvaran, Ganendra, Voon, Kelvin, Göktepe, Berk, Lee, Lee Yeong Sing, Gupta, Amit, Rasheed, Faaiz, Al-Shehari, Mohammed, Syed, Syed Muhammad Ali, Bhat, Pawan Singh, Erdoğan, Emre, Roat, Rajesh, Nacion, Aeris Jane D., Saraiya, Swapnil Mukesh, Afolabi, Akinwale Ibrahim, Chai, Feng Yih, Ghannam, Wagih, Bhattacharya, Kaushik, NL, Harish, Aloun, Ali, Bhatti, Hamza Waqar, Koneti, Akshadhar J., Klib, Mohamad, Qureshi, Ahmad Uzair, Syn, Nicholas L., Wani, Ajaz, Saeidi, Sara, Zeb, Muhammad, Bandaru, Kalyan Vijay Kumar, Menna, Maria Paola, Morales-Conde, Salvador, Gessa, Emanuela, Sánchez-Cabús, Santiago, Spartalis, Eleftherios, Antropoli, Carmine, Manigrasso, Michele, Sica, Giuseppe S., Ercolani, Giorgio, Chitul, Andrei, Bacchiocchi, Giulia, Azevedo, José, Karamarkovic, Aleksandar, Bonavina, Luigi, Piozzi, Guglielmo N., Migueláñez, Isabel Pascual, Merlini, David, Major, Piotr, Grimaldi, Luciano, Calu, Valentin, Curro, Giuseppe, Cotsoglou, Christian, Baldini, Edoardo, Delis, Spiros, Kovacevic, Bojan, Masetti, Michele, Selvaggi, Francesco, Scabini, Stefano, Reiti, Andrian, Zullo, Alessia, Giuliani, Antonio, Alesina, Pier Francesco, Massey, Lisa H., Slesser, Alistair A. P., Neary, Peter M., Sahnan, Kapil, Tan, Jessica J., Colucci, Gianluca, Brady, Richard R. W., Mihailescu, Andrei, Adamina, Michel, Gerogiannis, Ioannis, van Ramshorst, Gabrielle, Paradiso, Giulia, Poto, Gianmario Edoardo, Massaro, Daniele, Nazir, Fozia, Stubbs, Benjamin M., Tasselli, Francesco Menegon, Muñoz-Cruzado, Virginia Durán, Sabia, Domenico, Vannelli, Alberto, Marsella, Valentina Enrica, Tomada, Elisa Paoluzzi, Giambusso, Mauro, Davies, Justin, Uzzau, Alessandro, Balla, Andrea, Scaringi, Stefano, Lancellotti, Francesco, Douka, Eleftheria, Argenio, Giulio, Cassese, Gianluca, Ammendola, Michele, Morelli, Luca, Francone, Elisa, Bala, Miklosh, Thambi, Prem, Iacobone, Maurizio, Campisi, Andrea, Tejedor, Patricia, Spoletini, Gabriele, Mascherini, Matteo, Belia, Francesco, Idiz, Ufuk Oguz, Colak, Elif, Peters, Paul Adewunmi, Ros, Emilio Peña, Aytac, Erman, Vilallonga, Ramon, Serrablo, Alejandro, Muttillo, Edoardo Maria, Di Franco, Gregorio, Vanni, Gianluca, Isik, Arda, Sbacco, Valentina, Tropeano, Francesca Paola, Porcellini, Iride, Butler, Rebecca Jayne, Fernandez, Carmen Cagigas, Papadopoulos, Aristeidis, Salvans, Silvia, Khan, Jan Sher, Bellver, Pedro Palazón, Mc Farlane, Sebastian Jeri, Apostolou, Konstantinos, Tur-Martinez, Jaume, Castellano, Javier Rivera, Santoliquido, Matteo, Tallon-Aguilar, Luis, Celentano, Valerio, Aliyev, Vusal, al-Najami, Issam, Grama, Florin A., Masior, Łukasz, Ciesielski, Wojciech J., Luberto, Antonio, Sparavigna, Marco, Klimczak, Tomasz Jerzy, Negoi, Ionut, Serradilla-Martín, Mario, Marinis, Athanasios, Cammarat, Roberto, Bellido-luque, Juan, Manzo, Carlo Alberto, Milana, Flavio, Luglio, Gaetano, Zarnescu, Narcis Octavian, Martínez, Isidro, Olmi, Stefano, Costea, Radu V., Cerdán-Santacruz, Carlos, Gica, Nicolae, Rompianesi, Gianluca, Gallo, Gaetano, Ridolfi, Cristina, Sahid, Saidah, CC, Tommaso, López-Soler, Guillermo, Díaz, Carlos JGómez, Mccawley, Niamh, Luzzi, Andrea Pierre, Abelló, David, Bonito, Alba Correa, Ntomi, Vasileia, Gourgiotis, Stavros, Pazos, Natalia Suárez, Toscano, Marta Jiménez, Zafra, David Ambrona, Beisani, Marc, Oliva, Alba, Guler, Mert, Gómez, Marta Jiménez, Oddis, Lidia, Montcusí, Blanca, Delgado, Ander Timoteo, Lasarte, Mateusz PJęckowski Aingeru Sarriuga, Antonacci, Nicola, Sartori, Alberto, Taylor, John Vincent, de Santos Iglesias, Francisco Juan, Mastronardi, Manuela, Gunay, Emre, Yiu, Andrew, Cano-Valderrama, Oscar, Costantini, Giulia, Digne-Malcolm, Holly Jane, Petropoulou, Thalia, Horesh, Nir, Kelly, Michael E., Ahmed, Nauman, Wyroslak-Najs, Justyna, Naik, Prashant, Vigorita, Vincenzo, Michael, Michael, Castro, Ernest, Paspala, Anna, D'Ambrosio, Marco, Pangeni, Anang, Dziakova, Jana, Terés, Lara Blanco, Lorente-Poch, Leyre, Di Carlo, Isidoro, Spartalis, Michael, Moro-Valdezate, David, Davey, Matthew G., Turrado-Rodriguez, Victor, Tryliskyy, Yegor, Calussi, Marco, Farré, Silvia Pérez, Labat, Miriam Cazador, Marafante, Chiara, Takkenberg, Marijn, Brookes, Charlotte Elisabeth, Soares, Antonio S., Gialamas, Eleftherios, Caputo, Damiano, Corrons, Laia Codina, Capitano, Sante, Charalabopoulos, Alexandros, Don, Cristine Brooke Pathirannehalage, Marrano, Enrico, Giuffrida, Maria Carmela, Tomasicchio, Giovanni, Bellato, Vittoria, Stijns, Jasper, Creavin, Ben, Schizas, Dimitrios, Blanco-Antona, Francisco, Kykalos, Stylianos, Tartaglia, Nicola, Pelegrina, Amalia, Barranquero, Alberto G., Schena, Carlo Alberto, Cremona, Simone, Baili, Efstratia, Cianci, Pasquale, Di Bella, Annamaria, Forcignanò, Edoardo, Fabbrizio, Tiziana, Salvetti, Francesco, Inama, Marco, Campagnaro, Tommaso, Deerenberg, Eva B., Reccia, Isabella, Rocca, Aldo, Fazio, Federico, Tampakis, Athanasios, Tepelenis, Kostas, Di Meo, Giovanna, Konstantoudakis, Georgios, Manatakis, Dimitrios K., Mineccia, Michela, Delvecchio, Antonella, Faro, Carmelo Lo, Rosso, Edoardo, Bandyopadhyay, Samik K., Queffurus, Michael, Marin, Jacopo Nicolò, Corvasce, Arianna, Chillarge, Gauri, Mohammed, Mohammed Mustafa, Reid, Rebecca, Gherardi, Dario, Naeem, Awais, Pandanaboyana, Sanjay, Tayeh, Salim, Chevallay, Mickael, Sergeant, Gregory, Cuccomarino, Salvatore, Salimian, Nick, Kapsampelis, Panagiotis, Ferretti, Carlotta, Glasbey, James, Harvitkar, Rafique Umer, Iqbal, Muhammad Rafaih, de Oliveira, Gabriel Paiva, Pérez-Bertólez, Sonia, Bergna, Alessandro, Brisinda, Giuseppe, Rottoli, Matteo, Roscio, Francesco, Pedrazzani, Corrado, Meyer, Jeremy, Marino, Marco V., Brasset, Camille, Daniel, Clerc, Devriendt, Stefanie, Soldini, Gabriele, Pennisi, Damiano, Richards, Chris B., Fiore, Felicia, Bocchino, Antonio, Au, Stephanie, Hernandez-Garcia, Miguel, Frontali, Alice, Grossi, Ugo, Lolis, Evangelos, Miotto, Marco, Di Filippo, Giacomo, Seretis, Charalampos, Barberis, Andrea, De Luca, Raffaele, Levi Sandri, Giovanni Battista, Reitano, Elisa, Mattioli, Marco, Sciaudone, Guido, Fuschillo, Giacomo, Schiltz, Boris, Low, Juin, Bointas, Georgios, Cozza, Valerio, Delaune, Vaihere, Vescio, Francesca, Curcio, Silvia, Sevik, Husnu, Santocchi, Pietro, Stecca, Tommaso, Balaphas, Alexandre, Chessa, Antonella, Leo, Cosimo Alex, di Mola, Fabio F., Tarallo, Mariarita, Martini, Francesco, Lisi, Giorgio, Khan, Mansoor, Nicolazzi, Marco, Pinotti, Enrico, Morini, Andrea, Esposito, Giuseppe, Buonomo, Oreste Claudio, Corallino, Diletta, Demir, Anıl, Roesel, Raffaello, De Lucia, Chiara, Maruccia, Michele, Tekin, Oguzhan, Pavone, Giovanna, Gupta, Ashish, Pradelle, Irene, Chrysikos, Michael, Farrukh, Maira, Baiocchi, Gian Luca, Piras, Carla, Abellán, Antonio Melero, Olivieri, Laura, Materazzo, Marco, Carbone, Ludovico, Dulskas, Audrius, Mulita, Francesk, Corronca, Federico, Cappuccio, Micaela, Smerieri, Elia, Sotiropoulu, Maria, Violante, Tommaso, Moletta, Lucia, Rutegård, Martin, Brillantino, Antonio, Landaluce-Olavarria, Aitor, Ossola, Paolo, Bono, Dario, Rosés, Helena Salvador, Perez-Sanchez, Luis E., Sabbatini, Sonia, Scotti, Mauro Alessandro, Cammarata, Roberto, Ibáñez, Noelia, Marano, Alessandra, Palmisano, Silvia, Cascales-Sanchez, Pedro, Mosca, Vinicio, Ballester, Cristina, Iordache-Petrescu, Madalina Ionela, Pozza, Gioia, Akay, Omer, Bollino, Ruggero, Toti, Johannes M. A., Mascianà, Gianluca, Pach, Radoslaw, Sensi, Bruno, Natalia, Savvala N., Coppola, Alessandro, Altinel, Yuksel, Brucchi, Francesco, Guitart, Marc Pérez, Salido, Andrea Jiménez, Tamini, Nicolò, Garoufalia, Zoe, Mifsut, Patricia, Wilkins, Alex, Navarro-Sánchez, Antonio, Cestaro, Giovanni, Conti, Luigi, Carvas, João M. B., Gazia, Carlo, Alonso, Patricia, Spiezio, Giovanni, Maggi, Giulia, Juloski, Jovan, Braccio, Bartolomeo, Pañella, Clara, Freixa, Celia Caula, Petrakis, Georgios, Folliero, Cristina, De Andrés-Asenjo, Beatriz, Iodice, Alessandra, Jansson, Hannes, González, Tomas Elosua, Ortega, Irene, Castro, Maria J., Fernicola, Agostino, Aparicio, Antonio Carlos Maya, Ortega, Nuria, Chouliaras, Christos, Tura, Marina Vila, Sidiropoulou, Zacharoula, Gonzalez, Ana, Augustin, Goran, Segura-Sampedro, Juan J., Cuk, Vladica, Piccolo, Gaetano, Ingallinella, Sara, Ortenzi, Monica, Uggeri, Fabio, Carrabetta, Salvatore, Tolonen, Matti, Formisano, Giampaolo, Manfredelli, Simone, Perra, Teresa, Esposito, Francesco, Perrone, Gennaro, Zacharis, Georgios, Menéndez, Jaime Iturbe, Bottcher, Sofia Maria Jaume, Ioannidis, Orestis, Borges, Nuno, Sousa, Xavier, Colombari, Renan C., Tellez, Clara, Capolupo, Gabriella Teresa, Giuliani, Giuseppe, Mastella, Federica, González, Lluis García, Merlini, Ilenia, Ghignone, Federico, de Sa, Tiago Correia, Mangana, Orsalia, Rodriguez-Lopez, Mario, Alvarez-Gallego, Mario, Chowdhury, Ashim, Di Lascio, Pierpaolo, Carneros, Virginia Jiménez, Angrisani, Marco, Conte, Luigi E., Montiel, Carmen Galiana, Ascari, Francesca, Dajti, Irida, Lapolla, Pierfrancesco, Sperotto, Beatrice, Mazzarella, Gennaro, Capuano, Marianna, Lopez, Maria Martinez, Ferrario, Luca, Bulte, Joris P., López, María Martínez, Guerci, Claudio, Marra, Angelo Alessandro, Belkacem, Acidi, Pérez, Raquel Escalera, Panyko, Arpád, Dimitrov, Evgeni, Luque, Eduardo J., Manrique, Mario Montes, Paranyak, Mykola, Kaur, Mandeep, Barugola, Giuliano, Farazi-Chongouki, Christos, Estaire-Gómez, Mercedes, del Olmo, Juan Carlos Martín, Nardo, Bruno, Mutlu, Arda Ulaş, Rubio, Ainhoa Valle, Merlini, David A., Marchegiani, Francesco, Cereda, Marco Angelo, Vinci, Danilo, Komaei, Iman, Petrucciani, Niccolo, Seyfried, Steffen, Krsicka, Petr, Medas, Fabio, Lesko, Dusan, Murzi, Valentina, Siragusa, Leandro, Guerrero, María Alejandra, Iranzo, Marina Alarcón, Cestino, Luca, Pasculli, Alessandro, Smerieri, Nazareno, Benzoni, Ilaria, Festa, Federico, Jordão, Daniel Filipe Martins, Licardie, Eugenio, Nicolaescu, Diana C., Balassone, Valerio, La Vaccara, Vincenzo, Romano, Fabrizio, Adamovich, Dmitry Mikhailovich, Papatheodorou, Panayiotis, Maroni, Norvana, Colás-Ruiz, Enrique, Melberga, Liene, Chimenti, Federica, Ferrari, Davide, Arcudi, Claudio, Police, Andrea, De Simone, Belinda, Sánchez-Guillén, Luis, Parreño-Manchado, Felipe Carlos, Rachadell, Juan José, Coletta, Diego, Saroglu, Azize, Pattacini, Gianmaria Casoni, Antonelli, Amedeo, Anania, Marco, Litta, Francesco, Lafranceschina, Stefano, Bottari, Andrea, Pavlovic, Mladen, Rojas-Bonet, Noel, Tampaki, Ekaterini Christina, Kosir, Jurij A., Anelli, Ferdinando M., de las Casas, Sara Gortázar, Kucukarslan, Rabia, Pierobon, Elisa Sefora, Milanesi, Maria, Drogouti, Maria, Sotiropoulou, Maria, Di Marco, Federica, Bannone, Elisa, Sliwinski, Svenja Christin, Yildiz, Ishak, Pellicciaro, Marco, Celotti, Andrea, Malerba, Michele, Marino, Fabio, Bourmpouteli, Eirini, Bianco, Giuseppe, Charitaki, Evgenia, Pascale, Marco Maria, Ioannidis, Argyrios, Maraska, Fatlum, Petagna, Lorenzo, Turri, Giulia, Vailas, Michail, Romanzi, Andrea, Pouwels, Sjaak, Rosa, Fausto, Clocchiatti, Lucrezia, Andreuccetti, Jacopo, Machairas, Nikolaos, Frountzas, Maximos, Lasithiotakis, Konstantinos, Barone, Mirko, Christodoulou, Prokopis, Potkonjak, Dario, Aiolfi, Alberto, de Vries, Hilbert S., Napetti, Sara, Castaldi, Antonio, Botelho, Pedro, Marziali, Irene, Uccelli, Matteo, Pisano, Michele, Veroux, Massimiliano, Locci, Eleonora, Romano, Angela, Cero, Mariagiulia Dal, Cicerchia, Pierfranco Maria, Baldi, Caterina, Russo, Iris Shari, Tenconi, Silvia Maria, Saliu, Fatmir, Bondurri, Andrea, Cardinali, Luca, Laracca, Giovanni Guglielmo, Martín-Pérez, Beatriz, Felsenreich, Daniel M., Cunha, Miguel, Zerbo, Domenico, Clementi, Marco, Delogu, Daniele, Iossa, Angelo, Bavikatte, Akshay Prasannakumar, Saracoglu, Can, Pecorelli, Nicolò, Tufo, Andrea, Biloslavo, Alan, Lianos, Georgios D., Carannante, Filippo, Costanzo, Antonio, Montuori, Mauro, Cigognini, Maria, Silvestro, Roberto, Atici, Semra Demirli, Milito, Pamela, Ferronetti, Antonio, Güngör, Mert, Di Venere, Beatrice, Puccioni, Caterina, De Nobili, Giovanni, Selvaggi, Lucio, Farolfi, Tommaso, Aeschbacher, Pauline, Olivier, James B., Frazzetta, Giuseppe, Andriola, Valeria, Giordano, Alessio, De Luca, Alessandro, Ferrara, Francesco, Casagranda, Biagio, Sammartano, Fabrizio, Russo, Alfio Alessandro, Rossi, Stefano, Pacilli, Mario, Synekidou, Eirini, Tutino, Roberta, Ceresoli, Marco, De Rosa, Michele, Di Santo Albini, Andrea G., Vincenzi, Paolo, Vellei, Samantha, Benzoni, Enrico, Murillo, Gabriela Aracelly Arroyo, Izzo, Giuliano, Scotto, Bruno, Caruso, Riccardo, Colombo, Francesco, D'Acapito, Fabrizio, Lostoridis, Eftychios, Saladino, Edoardo, Poillucci, Gaetano, Moeckli, Beat, Manto, Ottavia, Kara, Yasin, Tatar, Cihad, Cioffi, Stefano Piero Bernardo, Mambrilla, Sara, Bianchi, Valentina, Scopelliti, Michele, Agresta, Ferdinando, Nava, Andrea Kazemi, Franchi, Eloisa, Fransvea, Pietro, Prieto, Mikel, Picardi, Biagio, Rizzuto, Antonia, Panaccio, Paolo, Gussago, Stefano, Marra, Ester, Addeo, Pietro, Fernández Fernández, June, Gulmez, Mehmet, Pisaniello, Donatella, Cannavo, Maurizio, López-López, Victor, Avella, Pasquale, Peloso, Andrea, Bellanova, Giovanni, Candilio, Giuseppe, Perotti, Bruno, Granata, Roberta, Florio, Gaetano, Ioia, Giovanna, Iannone, Immacolata, Ammerata, Giorgio, Zambon, Martina, Romano, Francesco Maria, Del Monte, Simone Rossi, Sasia, Diego, Fortuna, Laura, Giuffrida, Mario, Litvin, Andrey, Cannistra, Marco, De Padua, Cristina, Sánchez, Tatiana Gómez, Paniagua-Garcia-Señorans, Marta, Guevara, Jenny, Perfecto, Arkaitz, Alconchel, Felipe, Campanelli, Michela, Keci, Laura, Cricrì, Michele, Kampouroglou, Georgios, Bagaglini, Giulia, Farrarons, Sara Sentí, Greco, Antonio, Walędziak, Maciej, Carvas, João M., Serrano-Navidad, Monica, Van Doorn, Berend, Schiavo, Ciro, Fabbri, Nicolò, Wani, Ishfaq Ahmad, Mondi, Isabella, Anestiadou, Elissavet, Mendes, Beatriz ISilva, Verdi, Daunia, Dorovinis, Panagiotis, Cacciaguerra, Andrea Benedetti, Caldeira, Beatriz, Canonico, Giuseppe, Dardanov, Dragomir, D'Ugo, Stefano, Francis, Fayez Maged, Meneghini, Simona, Pesce, Antonio, Puglisi, Silvana Bernadetta, Bellini, Maria Irene, Pisano, Marcello, Giordano, Marco, Fleres, Francesco, Campus, Federica, Cillara, Nicola, Moggia, Elisabetta, Ciarleglio, Francesco A., Calini, Giacomo, Gravante, Gianpiero, De Carlis, Riccardo, Altomare, Michele, Martines, Gennaro, Miggino, Marco, Marano, Luigi, Stocco, Alberto, Porcu, Alberto, Pham, Thuy Vy, Gervasi, Maria Clelia, Pilia, Tiziana, Palomba, Giuseppe, Picchetto, Andrea, Spampinato, Marcello Giuseppe, Tandoi, Francesco, Piccoli, Micaela, Gall, Malina ECaraiman, Santos, Bárbara Ribeiro, Agastra, Ervis, Koëter, Tijmen, Samadov, Elgun, Marsanic, Patrizia, Serena, De Fatico Gilda, Uzunoglu, Mustafa Yener, Zanus, Giacomo, Braholli, Eriol, Giovine, Gennaro, Galiffa, Giampaolo, Lauricella, Sara, Lukmonov, Saidrakhim, Leventoglu, Sezai, Chooklin, Serge, Dudi-Venkata, Nagendra N., Gauci, Chahaya M., Podda, M, Di Martino, M, Pata, F, Nigri, G, Pisanu, A, Di Saverio, S, Pellino, G, Ielpo, B, Null, N, Tolla, A, Abdelkhalek, M, Emile, S, Dinagde, T, Bouzid, C, Mansour, A, Garzali, I, Aregawi, A, Zaghloul, T, Kchaou, A, Awad, S, Souadka, A, Ted, T, Saumtally, M, Ahmed, B, Bayileyegn, N, Nunziante, M, Shalaby, M, Debena, D, Zena, A, Adewunmi, O, Negasa, T, Bourguiba, M, Feituri, N, Kebede, K, Elfeki, H, Anas, A, Awad, A, Ermias, N, Hailemariam, D, Bejiga, G, Imana, R, Taffese, A, Feleke, T, Elghadban, H, Debela, B, Shiferaw, D, Tadesse, R, Chukwu, I, Mohammed, A, Hassen, K, Obiagwu, N, Tense, T, Taeme, M, Biniam, E, Tesfay, G, Tegegn, A, Teddy, T, Bekana, B, Nidaw, M, Ali, M, Gonfa, K, Kiros, S, Belay, T, Yallew, G, Wassie, C, 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Giovine, G, Galiffa, G, Lauricella, S, Lukmonov, S, Leventoglu, S, Chooklin, S, Dudi-Venkata, N, Gauci, C, Podda, Mauro, Di Martino, Marcello, Pata, Francesco, Nigri, Giuseppe, Pisanu, Adolfo, Di Saverio, Salomone, Pellino, Gianluca, Ielpo, Benedetto, null, null, Tolla, Ashenafi Negash, Abdelkhalek, Mohamed, Emile, Sameh, Dinagde, Tesfaye Aga, Bouzid, Chafik, Mansour, Ahmed Mohammed Farid Mahmoud, Garzali, Ibrahim Umar, Aregawi, Alazar Berhe, Zaghloul, Tarek M., Kchaou, Ali, Awad, Selmy S., Souadka, Amine, Ted, Tedla Gebretsadik, Saumtally, Mohammad Saad, Ahmed, Bensaad, Bayileyegn, Nebiyou Simegnew, Nunziante, Marco, Shalaby, Mostafa, Debena, Dawit Gebregiorgis, Zena, Alemayehu Shanko, Adewunmi, Olayinka Lukman, Negasa, Tolera A., Bourguiba, Mohamed Aboulkacem, Feituri, Nura, Kebede, Kirubel Abebe, Elfeki, Hossam, Anas, Abdelhmed, Awad, Ahmed K., Ermias, Nebiyou, Hailemariam, Dagnachew H., Bejiga, Gosa Hundie, Imana, Ruhama Yoseph, Taffese, Abebe, Feleke, Tsega Terefe, Elghadban, Hosam Mohamed, Debela, Bizuneh Sime, Shiferaw, Desta, Tadesse, Robel, Chukwu, Isaac Sunday, Mohammed, Abdullahi Ibrahim, Hassen, Khalid Arebo, Obiagwu, Ndubuisi K., Tense, Tadesse H., Taeme, Mulugeta, Biniam, Ewnte, Tesfay, Goytom Knfe, Tegegn, Ayenachew Getachew, Teddy, Tewodros Abule Bilata, Bekana, Bekana L., Nidaw, Melkamu Kibret, Ali, Mahmoud Ibrahim, Gonfa, Kebebe Bekele, Kiros, Samuel, Belay, Tatek, Yallew, Gebeyaw Mengist, Wassie, Chekol, Ayalew, Alem Mekete, Asfaw, Fitsum Terefe, Aimal, Aimal Khan, Casas, Maria Agustina, Madrid, Fausto A., Diaz-Elizondo, Jose Antonio, Merlo, Ignacio Guillermo, De Campos, Tercio, Schlottmann, Francisco, Gomes, Carlos Augusto, Hernández, Edgard Efrén Lozada, Moncada-Ortega, Augusto, Ramos-De la Medina, Antonio, Vanerio, Patricio, Morales, Emilio J., Stringfield, Sarah Beth, Gallardo, Cristian, Fonseca, Vinicius Cordeiro, Muriel, Maria Emilia, Cantarino, Frederico, Fichera, Alessandro, Rodriguez, Agustin E., Salinas, Roberto Paúl Andrade, Crosbie, Gonzalo Gabriel, Menegozzo, Carlos Augusto Metidieri, Avellaneda, Nicolas, Briones, Cristhian Gonzalo Aspiazu, Varela, Cristopher, Lichliter, Warren E., Varela, Cristopher L., Koppel, Darren, Lenz, Jorge Godoy, Pascual, Franco, Sibaja-Matamoros, Dauber A., Johnson, Benjamin E., Mercado, Octavio Avila, Tita, Agustín, Mukherjee, Indraneil, Lorenzo, Irving, Rueda, Erick, Rico, Douglas, Terwes, Natasha Loria, Visag-Castillo, Victor, Escalante, Karol S., Salvador, Alan Francisco Alfaro, Pio, Luca, Rodas, Edgar B., Aguilar, Juan Carlos Cardozo, Neri, Ignacio, Barzola, Ernesto J., Barba, Leonardo A., Zuchini, Andrés Mendoza, Acevedo, Ana Karen Radilla, Gachabayov, Mahir, Gonsaga, Ricardo Alessandro Teixeira, Bonilla, Fernando, Knickerbocker, Chase Barrett, Tsouknidas, Ioannis, Salamea, Juan C., Travers, Lawrence Albert Salter, Nari, Gustavo Adrian, Pachajoa, Diana Alejandra Pantoja, Valadez, Michel Hernandez, Hale, Lyman Lansing, Perez, Guillermo, Choudhry, Asad, Foreman, Michaael L., Brito, Ismael, Ciro, Mauricio Pedraza, Newton, Carla Joyce, Souza, Hamilton Petry, Davis, Daniel G., Ferreira, Rodrigo Vaz, Keller, Deborah S., Miguel, Gustavo Machain, Singh-Ranger, Gurpreet, Linares, Neiling Massiel Oviedo, Singares, Eduardo Smith, Valdivieso, Xavier HGarcía, Teran, Alfonso Ivan Sanchez, Vargas, Luis Felipe Cabrera, Valinoti, Agustín, Milne, David M., Fleming, Andrew Martin, Quiroga-Garza, Alejandro, Espino, Eduardo Morales, Bedros, Nicole Mary, Funk, Geoffrey A., Neves, Fernanda V. S., Supit, Tommy, Baba, Arshad Ahmed, Chalkoo, Mushtaq A., Kucuk, Gultekin Ozan, Sarmiento, Ray Inocencio, Galeev, Shamil I., Korkoman, Mohammed J., Yang, Wah, Medappil, Noushif, Athar, Rahmatullah, Subramaniam, Ravichandran, Chia, Chi Fung, Alhazmi, Ahmad, Halder, Subhadip, Rusli, Siti Mayuha, Rashid, Arshad, Gülcü, Barış, Nagarajan, Prasanth, Rida, Khaled, Jamiri, Al-Radjid, Batıkan, Oğuzkağan, Khan, Huma Ahmed, Mitul, Ashrarur Rahman, Efetov, Sergey, Junior, Marcelo A. F. Ribeiro, Gulcu, Baris, Farooqui, Marryam Riaz, Mulpuri, Venu Bhargava, Bagaria, Dinesh, Yusoff, Ahmad Ramzi, Wani, Rauf, Younis, Muhammad Umar, Khobragade, Krunal H., Marwat, Muhammad Ibrahim, Bains, Lovenish, Kobe, Yoshiro, Koh, Peng Soon, Tantravahi, Umasankar, Mohamad Mohamad, Ikhwan Sani, Abu-Arish, Hamdoon, Yildirim, Ali Cihat, Ibrahim, Aini Fahriza, Tan, Jih Huei, Siagian, Dumaria Ketty, Bhattacharya, Neela, Chiu, Jennifer H. F., Paramasvaran, Ganendra, Voon, Kelvin, Göktepe, Berk, Lee, Lee Yeong Sing, Gupta, Amit, Rasheed, Faaiz, Al-Shehari, Mohammed, Syed, Syed Muhammad Ali, Bhat, Pawan Singh, Erdoğan, Emre, Roat, Rajesh, Nacion, Aeris Jane D., Saraiya, Swapnil Mukesh, Afolabi, Akinwale Ibrahim, Chai, Feng Yih, Ghannam, Wagih, Bhattacharya, Kaushik, NL, Harish, Aloun, Ali, Bhatti, Hamza Waqar, Koneti, Akshadhar J., Klib, Mohamad, Qureshi, Ahmad Uzair, Syn, Nicholas L., Wani, Ajaz, Saeidi, Sara, Zeb, Muhammad, Bandaru, Kalyan Vijay Kumar, Menna, Maria Paola, Morales-Conde, Salvador, Gessa, Emanuela, Sánchez-Cabús, Santiago, Spartalis, Eleftherios, Antropoli, Carmine, Manigrasso, Michele, Sica, Giuseppe S., Ercolani, Giorgio, Chitul, Andrei, Bacchiocchi, Giulia, Azevedo, José, Karamarkovic, Aleksandar, Bonavina, Luigi, Piozzi, Guglielmo N., Migueláñez, Isabel Pascual, Merlini, David, Major, Piotr, Grimaldi, Luciano, Calu, Valentin, Curro, Giuseppe, Cotsoglou, Christian, Baldini, Edoardo, Delis, Spiros, Kovacevic, Bojan, Masetti, Michele, Selvaggi, Francesco, Scabini, Stefano, Reiti, Andrian, Zullo, Alessia, Giuliani, Antonio, Alesina, Pier Francesco, Massey, Lisa H., Slesser, Alistair A. P., Neary, Peter M., Sahnan, Kapil, Tan, Jessica J., Colucci, Gianluca, Brady, Richard R. W., Mihailescu, Andrei, Adamina, Michel, Gerogiannis, Ioannis, van Ramshorst, Gabrielle, Paradiso, Giulia, Poto, Gianmario Edoardo, Massaro, Daniele, Nazir, Fozia, Stubbs, Benjamin M., Tasselli, Francesco Menegon, Muñoz-Cruzado, Virginia Durán, Sabia, Domenico, Vannelli, Alberto, Marsella, Valentina Enrica, Tomada, Elisa Paoluzzi, Giambusso, Mauro, Davies, Justin, Uzzau, Alessandro, Balla, Andrea, Scaringi, Stefano, Lancellotti, Francesco, Douka, Eleftheria, Argenio, Giulio, Cassese, Gianluca, Ammendola, Michele, Morelli, Luca, Francone, Elisa, Bala, Miklosh, Thambi, Prem, Iacobone, Maurizio, Campisi, Andrea, Tejedor, Patricia, Spoletini, Gabriele, Mascherini, Matteo, Belia, Francesco, Idiz, Ufuk Oguz, Colak, Elif, Peters, Paul Adewunmi, Ros, Emilio Peña, Aytac, Erman, Vilallonga, Ramon, Serrablo, Alejandro, Muttillo, Edoardo Maria, Di Franco, Gregorio, Vanni, Gianluca, Isik, Arda, Sbacco, Valentina, Tropeano, Francesca Paola, Porcellini, Iride, Butler, Rebecca Jayne, Fernandez, Carmen Cagigas, Papadopoulos, Aristeidis, Salvans, Silvia, Khan, Jan Sher, Bellver, Pedro Palazón, Mc Farlane, Sebastian Jeri, Apostolou, Konstantinos, Tur-Martinez, Jaume, Castellano, Javier Rivera, Santoliquido, Matteo, Tallon-Aguilar, Luis, Celentano, Valerio, Aliyev, Vusal, al-Najami, Issam, Grama, Florin A., Masior, Łukasz, Ciesielski, Wojciech J., Luberto, Antonio, Sparavigna, Marco, Klimczak, Tomasz Jerzy, Negoi, Ionut, Serradilla-Martín, Mario, Marinis, Athanasios, Cammarat, Roberto, Bellido-luque, Juan, Manzo, Carlo Alberto, Milana, Flavio, Luglio, Gaetano, Zarnescu, Narcis Octavian, Martínez, Isidro, Olmi, Stefano, Costea, Radu V., Cerdán-Santacruz, Carlos, Gica, Nicolae, Rompianesi, Gianluca, Gallo, Gaetano, Ridolfi, Cristina, Sahid, Saidah, CC, Tommaso, López-Soler, Guillermo, Díaz, Carlos JGómez, Mccawley, Niamh, Luzzi, Andrea Pierre, Abelló, David, Bonito, Alba Correa, Ntomi, Vasileia, Gourgiotis, Stavros, Pazos, Natalia Suárez, Toscano, Marta Jiménez, Zafra, David Ambrona, Beisani, Marc, Oliva, Alba, Guler, Mert, Gómez, Marta Jiménez, Oddis, Lidia, Montcusí, Blanca, Delgado, Ander Timoteo, Lasarte, Mateusz PJęckowski Aingeru Sarriuga, Antonacci, Nicola, Sartori, Alberto, Taylor, John Vincent, de Santos Iglesias, Francisco Juan, Mastronardi, Manuela, Gunay, Emre, Yiu, Andrew, Cano-Valderrama, Oscar, Costantini, Giulia, Digne-Malcolm, Holly Jane, Petropoulou, Thalia, Horesh, Nir, Kelly, Michael E., Ahmed, Nauman, Wyroslak-Najs, Justyna, Naik, Prashant, Vigorita, Vincenzo, Michael, Michael, Castro, Ernest, Paspala, Anna, D'Ambrosio, Marco, Pangeni, Anang, Dziakova, Jana, Terés, Lara Blanco, Lorente-Poch, Leyre, Di Carlo, Isidoro, Spartalis, Michael, Moro-Valdezate, David, Davey, Matthew G., Turrado-Rodriguez, Victor, Tryliskyy, Yegor, Calussi, Marco, Farré, Silvia Pérez, Labat, Miriam Cazador, Marafante, Chiara, Takkenberg, Marijn, Brookes, Charlotte Elisabeth, Soares, Antonio S., Gialamas, Eleftherios, Caputo, Damiano, Corrons, Laia Codina, Capitano, Sante, Charalabopoulos, Alexandros, Don, Cristine Brooke Pathirannehalage, Marrano, Enrico, Giuffrida, Maria Carmela, Tomasicchio, Giovanni, Bellato, Vittoria, Stijns, Jasper, Creavin, Ben, Schizas, Dimitrios, Blanco-Antona, Francisco, Kykalos, Stylianos, Tartaglia, Nicola, Pelegrina, Amalia, Barranquero, Alberto G., Schena, Carlo Alberto, Cremona, Simone, Baili, Efstratia, Cianci, Pasquale, Di Bella, Annamaria, Forcignanò, Edoardo, Fabbrizio, Tiziana, Salvetti, Francesco, Inama, Marco, Campagnaro, Tommaso, Deerenberg, Eva B., Reccia, Isabella, Rocca, Aldo, Fazio, Federico, Tampakis, Athanasios, Tepelenis, Kostas, Di Meo, Giovanna, Konstantoudakis, Georgios, Manatakis, Dimitrios K., Mineccia, Michela, Delvecchio, Antonella, Faro, Carmelo Lo, Rosso, Edoardo, Bandyopadhyay, Samik K., Queffurus, Michael, Marin, Jacopo Nicolò, Corvasce, Arianna, Chillarge, Gauri, Mohammed, Mohammed Mustafa, Reid, Rebecca, Gherardi, Dario, Naeem, Awais, Pandanaboyana, Sanjay, Tayeh, Salim, Chevallay, Mickael, Sergeant, Gregory, Cuccomarino, Salvatore, Salimian, Nick, Kapsampelis, Panagiotis, Ferretti, Carlotta, Glasbey, James, Harvitkar, Rafique Umer, Iqbal, Muhammad Rafaih, de Oliveira, Gabriel Paiva, Pérez-Bertólez, Sonia, Bergna, Alessandro, Brisinda, Giuseppe, Rottoli, Matteo, Roscio, Francesco, Pedrazzani, Corrado, Meyer, Jeremy, Marino, Marco V., Brasset, Camille, Daniel, Clerc, Devriendt, Stefanie, Soldini, Gabriele, Pennisi, Damiano, Richards, Chris B., Fiore, Felicia, Bocchino, Antonio, Au, Stephanie, Hernandez-Garcia, Miguel, Frontali, Alice, Grossi, Ugo, Lolis, Evangelos, Miotto, Marco, Di Filippo, Giacomo, Seretis, Charalampos, Barberis, Andrea, De Luca, Raffaele, Levi Sandri, Giovanni Battista, Reitano, Elisa, Mattioli, Marco, Sciaudone, Guido, Fuschillo, Giacomo, Schiltz, Boris, Low, Juin, Bointas, Georgios, Cozza, Valerio, Delaune, Vaihere, Vescio, Francesca, Curcio, Silvia, Sevik, Husnu, Santocchi, Pietro, Stecca, Tommaso, Balaphas, Alexandre, Chessa, Antonella, Leo, Cosimo Alex, di Mola, Fabio F., Tarallo, Mariarita, Martini, Francesco, Lisi, Giorgio, Khan, Mansoor, Nicolazzi, Marco, Pinotti, Enrico, Morini, Andrea, Esposito, Giuseppe, Buonomo, Oreste Claudio, Corallino, Diletta, Demir, Anıl, Roesel, Raffaello, De Lucia, Chiara, Maruccia, Michele, Tekin, Oguzhan, Pavone, Giovanna, Gupta, Ashish, Pradelle, Irene, Chrysikos, Michael, Farrukh, Maira, Baiocchi, Gian Luca, Piras, Carla, Abellán, Antonio Melero, Olivieri, Laura, Materazzo, Marco, Carbone, Ludovico, Dulskas, Audrius, Mulita, Francesk, Corronca, Federico, Cappuccio, Micaela, Smerieri, Elia, Sotiropoulu, Maria, Violante, Tommaso, Moletta, Lucia, Rutegård, Martin, Brillantino, Antonio, Landaluce-Olavarria, Aitor, Ossola, Paolo, Bono, Dario, Rosés, Helena Salvador, Perez-Sanchez, Luis E., Sabbatini, Sonia, Scotti, Mauro Alessandro, Cammarata, Roberto, Ibáñez, Noelia, Marano, Alessandra, Palmisano, Silvia, Cascales-Sanchez, Pedro, Mosca, Vinicio, Ballester, Cristina, Iordache-Petrescu, Madalina Ionela, Pozza, Gioia, Akay, Omer, Bollino, Ruggero, Toti, Johannes M. 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B., Gazia, Carlo, Alonso, Patricia, Spiezio, Giovanni, Maggi, Giulia, Juloski, Jovan, Braccio, Bartolomeo, Pañella, Clara, Freixa, Celia Caula, Petrakis, Georgios, Folliero, Cristina, De Andrés-Asenjo, Beatriz, Iodice, Alessandra, Jansson, Hannes, González, Tomas Elosua, Ortega, Irene, Castro, Maria J., Fernicola, Agostino, Aparicio, Antonio Carlos Maya, Ortega, Nuria, Chouliaras, Christos, Tura, Marina Vila, Sidiropoulou, Zacharoula, Gonzalez, Ana, Augustin, Goran, Segura-Sampedro, Juan J., Cuk, Vladica, Piccolo, Gaetano, Ingallinella, Sara, Ortenzi, Monica, Uggeri, Fabio, Carrabetta, Salvatore, Tolonen, Matti, Formisano, Giampaolo, Manfredelli, Simone, Perra, Teresa, Esposito, Francesco, Perrone, Gennaro, Zacharis, Georgios, Menéndez, Jaime Iturbe, Bottcher, Sofia Maria Jaume, Ioannidis, Orestis, Borges, Nuno, Sousa, Xavier, Colombari, Renan C., Tellez, Clara, Capolupo, Gabriella Teresa, Giuliani, Giuseppe, Mastella, Federica, González, Lluis García, Merlini, Ilenia, Ghignone, 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María Alejandra, Iranzo, Marina Alarcón, Cestino, Luca, Pasculli, Alessandro, Smerieri, Nazareno, Benzoni, Ilaria, Festa, Federico, Jordão, Daniel Filipe Martins, Licardie, Eugenio, Nicolaescu, Diana C., Balassone, Valerio, La Vaccara, Vincenzo, Romano, Fabrizio, Adamovich, Dmitry Mikhailovich, Papatheodorou, Panayiotis, Maroni, Norvana, Colás-Ruiz, Enrique, Melberga, Liene, Chimenti, Federica, Ferrari, Davide, Arcudi, Claudio, Police, Andrea, De Simone, Belinda, Sánchez-Guillén, Luis, Parreño-Manchado, Felipe Carlos, Rachadell, Juan José, Coletta, Diego, Saroglu, Azize, Pattacini, Gianmaria Casoni, Antonelli, Amedeo, Anania, Marco, Litta, Francesco, Lafranceschina, Stefano, Bottari, Andrea, Pavlovic, Mladen, Rojas-Bonet, Noel, Tampaki, Ekaterini Christina, Kosir, Jurij A., Anelli, Ferdinando M., de las Casas, Sara Gortázar, Kucukarslan, Rabia, Pierobon, Elisa Sefora, Milanesi, Maria, Drogouti, Maria, Sotiropoulou, Maria, Di Marco, Federica, Bannone, Elisa, Sliwinski, Svenja Christin, 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Akshay Prasannakumar, Saracoglu, Can, Pecorelli, Nicolò, Tufo, Andrea, Biloslavo, Alan, Lianos, Georgios D., Carannante, Filippo, Costanzo, Antonio, Montuori, Mauro, Cigognini, Maria, Silvestro, Roberto, Atici, Semra Demirli, Milito, Pamela, Ferronetti, Antonio, Güngör, Mert, Di Venere, Beatrice, Puccioni, Caterina, De Nobili, Giovanni, Selvaggi, Lucio, Farolfi, Tommaso, Aeschbacher, Pauline, Olivier, James B., Frazzetta, Giuseppe, Andriola, Valeria, Giordano, Alessio, De Luca, Alessandro, Ferrara, Francesco, Casagranda, Biagio, Sammartano, Fabrizio, Russo, Alfio Alessandro, Rossi, Stefano, Pacilli, Mario, Synekidou, Eirini, Tutino, Roberta, Ceresoli, Marco, De Rosa, Michele, Di Santo Albini, Andrea G., Vincenzi, Paolo, Vellei, Samantha, Benzoni, Enrico, Murillo, Gabriela Aracelly Arroyo, Izzo, Giuliano, Scotto, Bruno, Caruso, Riccardo, Colombo, Francesco, D'Acapito, Fabrizio, Lostoridis, Eftychios, Saladino, Edoardo, Poillucci, Gaetano, Moeckli, Beat, Manto, Ottavia, Kara, Yasin, 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Abstract

The workload of general surgeons is multifaceted, encompassing not only surgical procedures but also a myriad of other responsibilities. From April to May 2023, we conducted a CHERRIES-compliant internet-based survey analyzing clinical practice, academic engagement, and post-on-call rest. The questionnaire featured six sections with 35 questions. Statistical analysis used Chi-square tests, ANOVA, and logistic regression (SPSS (R) v. 28). The survey received a total of 1.046 responses (65.4%). Over 78.0% of responders came from Europe, 65.1% came from a general surgery unit; 92.8% of European and 87.5% of North American respondents were involved in research, compared to 71.7% in Africa. Europe led in publishing research studies (6.6 +/- 8.6 yearly). Teaching involvement was high in North America (100%) and Africa (91.7%). Surgeons reported an average of 6.7 +/- 4.9 on-call shifts per month, with European and North American surgeons experiencing 6.5 +/- 4.9 and 7.8 +/- 4.1 on-calls monthly, respectively. African surgeons had the highest on-call frequency (8.7 +/- 6.1). Post-on-call, only 35.1% of respondents received a day off. Europeans were most likely (40%) to have a day off, while African surgeons were least likely (6.7%). On the adjusted multivariable analysis HDI (Human Development Index) (aOR 1.993) hospital capacity > 400 beds (aOR 2.423), working in a specialty surgery unit (aOR 2.087), and making the on-call in-house (aOR 5.446), significantly predicted the likelihood of having a day off after an on-call shift. Our study revealed critical insights into the disparities in workload, access to research, and professional opportunities for surgeons across different continents, underscored by the HDI.

Published
2024

50. A Longitudinal Network of Borderline-Related Trait Vulnerabilities from Childhood to Adolescence

Author

Franssens, R, Costantini, G, Kaurin, A, De Clercq, B, Franssens, R, Costantini, G, Kaurin, A, and De Clercq, B

Abstract

Early maladaptive traits are predictive of later borderline personality pathology (BPP), but little is known about their dynamic interplay over time. This is an important issue to address, however, as significant differences in the ‘clinical weight’ of various traits constituting the early BPP trait phenotype may inform the field on important target constructs from an early intervention perspective. Therefore, the current study aims to uncover the complex dependencies between BPP traits across the crucial developmental period of childhood and adolescence, by using longitudinal network analysis. Both between- and within-person networks were constructed to identify how early mother-reported borderline-related traits are connected across a timespan of six years (ntime 1 = 718, Mtime1 = 10.73 years, SDtime1 = 1.39, 55.1% girls). Overall, the temporal network suggested various trait interdependencies, with internalizing traits being particularly influential in the development of the BPP trait network structure. At the same time, externalizing traits likely inhibit the negative effects of these core traits. In addition, results also revealed that internalizing and externalizing clusters of early borderline-related traits are linked through emotional lability. Implications of these findings are discussed in view of the change mechanisms at play and potential targets for early intervention.

Published
2024

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