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6 results on '"Dalton MM"'

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

Author

Accardi, A, Achenbach, P, Adhikari, D, Afanasev, A, Akondi, CS, Akopov, N, Albaladejo, M, Albataineh, H, Albrecht, M, Almeida-Zamora, B, Amaryan, M, Androić, D, Armstrong, W, Armstrong, DS, Arratia, M, Arrington, J, Asaturyan, A, Austregesilo, A, Avakian, H, Averett, T, Gayoso, C Ayerbe, Bacchetta, A, Balantekin, AB, Baltzell, N, Barion, L, Barry, PC, 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, SA, Boglione, M, Bondí, M, Boos, EE, Bosted, P, Bozzi, G, Brash, EJ, Briceño, RA, Brindza, PD, Briscoe, WJ, Brodsky, SJ, Brooks, WK, Burkert, VD, Camsonne, A, Cao, T, Cardman, LS, Carman, DS, Carpinelli, M, Cates, GD, Caylor, J, Celentano, A, Celiberto, FG, Cerutti, M, Chang, L, Chatagnon, P, Chen, C, Chen, J-P, Chetry, T, Christopher, A, Christy, E, Chudakov, E, Cisbani, E, Cloët, IC, Cobos-Martinez, JJ, Cohen, EO, Colangelo, P, Cole, PL, 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, MM, Danilkin, I, Davydov, M, Day, D, De Fazio, F, De Napoli, M, De Vita, R, Dean, DJ, and Defurne, M

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
Published
2024

2. Probing for high-momentum protons in He4 via the He4(e,e′p)X reactions

Author

Iqbal, S, Benmokhtar, F, Ivanov, M, See, N, Aniol, K, Higinbotham, DW, Boyd, C, Gadsby, A, Goodwill, JS, Finton, D, Boyer, A, Gilad, S, Saha, A, Udias, JM, Ye, Z, Solvignon, P, Aguilera, P, Ahmed, Z, Albataineh, H, Allada, K, Anderson, B, Anez, D, Annand, J, Arrington, J, Averett, T, Baghdasaryan, H, Bai, X, Beck, A, Beck, S, Bellini, V, Camsonne, A, Chen, C, Chen, J-P, Chirapatpimol, K, Cisbani, E, Dalton, MM, Daniel, A, Day, D, Deconinck, W, Defurne, M, Flay, D, Fomin, N, Friend, M, Frullani, S, Fuchey, E, Garibaldi, F, Gaskell, D, Gilman, R, Glamazdin, S, Gu, C, Guèye, P, Hanretty, C, Hansen, J-O, Shabestari, M Hashemi, Huang, M, Jin, G, Kalantarians, N, Kang, H, Kelleher, A, Korover, I, LeRose, J, Leckey, J, Lindgren, R, Long, E, Mammei, J, Margaziotis, DJ, Markowitz, P, Meekins, D, Meziani, Z, Michaels, R, Mihovilovic, M, Muangma, N, Camacho, C Munoz, Norum, B, Nuruzzaman, Pan, K, Phillips, S, Piasetzky, E, Pomerantz, I, Posik, M, Punjabi, V, Qian, X, Qiang, Y, Qiu, X, Reimer, PE, Rakhman, A, Riordan, S, Ron, G, Rondon-Aramayo, O, Selvy, L, Shahinyan, A, Shneor, R, Sirca, S, Slifer, K, Sparveris, N, Subedi, R, Sulkosky, V, Wang, D, Watson, JW, and Weinstein, LB

Subjects
Particle and Plasma Physics, Molecular, Nuclear, Atomic, Nuclear & Particles Physics
Abstract

Experimental cross sections for the He4(e,e′p)X reactions in the missing energy range from 0.017 to 0.022 GeV and up to a missing momentum of 0.632 GeV/c at xB=1.24 and Q2=2 (GeV/c)2 are reported. The data are compared to relativistic distorted-wave impulse approximation calculations for the He4(e,e′p)H3 channel. Significantly more events are observed for pm≥0.45 GeV/c than are predicted by the theoretical model, and striking fluctuations in the ratio of data to the theoretical model around pm=0.3GeV/c are possible signals of initial-state multinucleon correlations.

Published
2022

3. Measurement of the Beam-Normal Single-Spin Asymmetry for Elastic Electron Scattering from $^{12}$C and $^{27}$Al

Author

QWeak Collaboration, Androic, D, Armstrong, DS, Asaturyan, A, Bartlett, K, Beminiwattha, RS, Benesch, J, Benmokhtar, F, Birchall, J, Carlini, RD, Christy, ME, Cornejo, JC, Dusa, S Covrig, Dalton, MM, Davis, CA, Deconinck, W, Dowd, JF, Dunne, JA, Dutta, D, Duvall, WS, Elassar, M, Falk, WR, Finn, JM, Forest, T, Gal, C, Gaskell, D, Gericke, MTW, Gray, VM, Guo, F, Hoskins, JR, Jones, DC, Kargiantoulakis, M, King, PM, Korkmaz, E, Kowalski, S, Leacock, J, Leckey, JP, Lee, AR, Lee, JH, Lee, L, MacEwan, S, Mack, D, Magee, JA, Mahurin, R, Mammei, J, Martin, JW, McHugh, MJ, Meekins, D, Mesick, KE, Michaels, R, Mkrtchyan, A, Mkrtchyan, H, Narayan, A, Ndukum, LZ, Nuruzzaman, Nelyubin, V, van Oers, WTH, Owen, VF, Page, SA, Pan, J, Paschke, KD, Phillips, SK, Pitt, ML, Radloff, RW, Rajotte, JF, Ramsay, WD, Roche, J, Sawatzky, B, Seva, T, Shabestari, MH, Silwal, R, Simicevic, N, Smith, GR, Solvignon, P, Spayde, DT, Subedi, A, Subedi, R, Tadevosyan, V, Tobias, WA, Waidyawansa, B, Wang, P, Wells, SP, Wood, SA, Zang, P, and Zhamkochyan, S

Subjects
Particle and Plasma Physics, Clinical Research, Molecular, FOS: Physical sciences, Nuclear, High Energy Physics::Experiment, Nuclear Experiment (nucl-ex), nucl-ex, Nuclear Experiment, Atomic, Nuclear & Particles Physics
Abstract

We report measurements of the parity-conserving beam-normal single-spin elastic scattering asymmetries $B_n$ on $^{12}$C and $^{27}$Al, obtained with an electron beam polarized transverse to its momentum direction. These measurements add an additional kinematic point to a series of previous measurements of $B_n$ on $^{12}$C and provide a first measurement on $^{27}$Al. The experiment utilized the Qweak apparatus at Jefferson Lab with a beam energy of 1.158 GeV. The average lab scattering angle for both targets was 7.7 degrees, and the average $Q^2$ for both targets was 0.02437 GeV$^2$ (Q=0.1561 GeV). The asymmetries are $B_n$ = -10.68 $\pm$ 0.90 stat) $\pm$ 0.57 (syst) ppm for $^{12}$C and $B_n$ = -12.16 $\pm$ 0.58 (stat) $\pm$ 0.62 (syst) ppm for $^{27}$Al. The results are consistent with theoretical predictions, and are compared to existing data. When scaled by Z/A, the Q-dependence of all the far-forward angle (theta < 10 degrees) data from $^{1}$H to $^{27}$Al can be described by the same slope out to $Q \approx 0.35$ GeV. Larger-angle data from other experiments in the same Q range are consistent with a slope about twice as steep., Minor changes after refereeing; version as accepted for Physical Review C. Cosmetic changes to several figures, one author added. 22 pages, 8 figures

Published
2021
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4. Novel observation of isospin structure of short-range correlations in calcium isotopes

Author

Nguyen, D, Ye, Z, Aguilera, P, Ahmed, Z, Albataineh, H, Allada, K, Anderson, B, Anez, D, Aniol, K, Annand, J, Arrington, J, Averett, T, Baghdasaryan, H, Bai, X, Beck, A, Beck, S, Bellini, V, Benmokhtar, F, Camsonne, A, Chen, C, Chen, J-P, Chirapatpimol, K, Cisbani, E, Dalton, MM, Daniel, A, Day, D, Deconinck, W, Defurne, M, Flay, D, Fomin, N, Friend, M, Frullani, S, Fuchey, E, Garibaldi, F, Gaskell, D, Gilad, S, Gilman, R, Glamazdin, S, Gu, C, Guèye, P, Hanretty, C, Hansen, J-O, Shabestari, M Hashemi, Higinbotham, DW, Huang, M, Iqbal, S, Jin, G, Kalantarians, N, Kang, H, Kelleher, A, Korover, I, LeRose, J, Leckey, J, Li, S, Lindgren, R, Long, E, Mammei, J, Margaziotis, DJ, Markowitz, P, Meekins, D, Meziani, Z-E, Michaels, R, Mihovilovič, M, Muangma, N, Camacho, C Munoz, Norum, BE, Nuruzzaman, Pan, K, Phillips, S, Piasetzky, E, Pomerantz, I, Posik, M, Punjabi, V, Qian, X, Qiang, Y, Qiu, X, Reimer, PE, Rakhman, A, Riordan, S, Ron, G, Rondon-Aramayo, O, Saha, A, Selvy, L, Shahinyan, A, Shneor, R, Širca, S, Slifer, K, Solvignon, P, Sparveris, N, Subedi, R, Sulkosky, V, Wang, D, Watson, JW, Weinstein, LB, Wojtsekhowski, B, Wood, SA, Yaron, I, Zhan, X, Zhang, J, and Zhang, YW

Subjects
Particle and Plasma Physics, Molecular, Nuclear, Nuclear Experiment, nucl-ex, Atomic, Nuclear & Particles Physics
Abstract

Short-range correlations (SRCs) have been identified as being responsible for the high-momentum tail of the nucleon momentum distribution, n(k). Hard, short-range interactions of nucleon pairs generate the high-momentum tail and imprint a universal character on n(k) for all nuclei at large momentum. Triple coincidence experiments have shown a strong dominance of np pairs, but these measurements involve large final-state interactions. This paper presents the results from Jefferson Lab experiment E08014 which measured inclusive electron scattering cross section from Ca isotopes. By comparing the inclusive cross section from Ca48 to Ca40 in a kinematic region dominated by SRCs we provide a new way to study the isospin structure of SRCs.

Published
2020

5. Search for three-nucleon short-range correlations in light nuclei

Author

Ye, Z, Solvignon, P, Nguyen, D, Aguilera, P, Ahmed, Z, Albataineh, H, Allada, K, Anderson, B, Anez, D, Aniol, K, Annand, J, Arrington, J, Averett, T, Baghdasaryan, H, Bai, X, Beck, A, Beck, S, Bellini, V, Benmokhtar, F, Camsonne, A, Chen, C, Chen, JP, Chirapatpimol, K, Cisbani, E, Dalton, MM, Daniel, A, Day, D, Deconinck, W, Defurne, M, Flay, D, Fomin, N, Friend, M, Frullani, S, Fuchey, E, Garibaldi, F, Gaskell, D, Gilad, S, Gilman, R, Glamazdin, S, Gu, C, Guèye, P, Hanretty, C, Hansen, JO, Shabestari, MH, Higinbotham, DW, Huang, M, Iqbal, S, Jin, G, Kalantarians, N, Kang, H, Kelleher, A, Korover, I, Lerose, J, Leckey, J, Lindgren, R, Long, E, Mammei, J, Margaziotis, DJ, Markowitz, P, Meekins, D, Meziani, Z, Michaels, R, Mihovilovic, M, Muangma, N, Camacho, CM, Norum, B, Nuruzzaman, Pan, K, Phillips, S, Piasetzky, E, Pomerantz, I, Posik, M, Punjabi, V, Qian, X, Qiang, Y, Qiu, X, Reimer, PE, Rakhman, A, Riordan, S, Ron, G, Rondon-Aramayo, O, Saha, A, Selvy, L, Shahinyan, A, Shneor, R, Sirca, S, Slifer, K, Sparveris, N, Subedi, R, Sulkosky, V, Wang, D, Watson, JW, Weinstein, LB, Wojtsekhowski, B, Wood, SA, Yaron, I, Zhan, X, Zhang, J, Zhang, YW, and Zhao, B

Subjects
Particle and Plasma Physics, Molecular, Nuclear, nucl-ex, Atomic, Nuclear & Particles Physics
Abstract

We present new data probing short-range correlations (SRCs) in nuclei through the measurement of electron scattering off high-momentum nucleons in nuclei. The inclusive He4/He3 cross section ratio is observed to be both x and Q2 independent for 1.52, our data support the hypothesis that a previous claim of three-nucleon correlation dominance was an artifact caused by the limited resolution of the measurement. While 3N-SRCs appear to have an important contribution, our data show that isolating 3N-SRCs is significantly more complicated than for 2N-SRCs.

Published
2018

6. Measurements of the separated longitudinal structure function FL from hydrogen and deuterium targets at low Q2

Author

Tvaskis, V, Tvaskis, A, Niculescu, I, Abbott, D, Adams, GS, Afanasev, A, Ahmidouch, A, Angelescu, T, Arrington, J, Asaturyan, R, Avery, S, Baker, OK, Benmouna, N, Berman, BL, Biselli, A, Blok, HP, Boeglin, WU, Bosted, PE, Brash, E, Breuer, H, Chang, G, Chant, N, Christy, ME, Connell, SH, Dalton, MM, Danagoulian, S, Day, D, Dodario, T, Dunne, JA, Dutta, D, Khayari, N El, Ent, R, Fenker, HC, Frolov, VV, Gaskell, D, Garrow, K, Gilman, R, Gueye, P, Hafidi, K, Hinton, W, Holt, RJ, Horn, T, Huber, GM, Jackson, H, Jiang, X, Jones, MK, Joo, K, Kelly, JJ, Keppel, CE, Kuhn, J, Kinney, E, Klein, A, Kubarovsky, V, Liang, Y, Lolos, G, Lung, A, Mack, D, Malace, S, Markowitz, P, Mbianda, G, McGrath, E, Mckee, D, Meekins, DG, Mkrtchyan, H, Napolitano, J, Navasardyan, T, Niculescu, G, Nozar, M, Ostapenko, T, Papandreou, Z, Potterveld, D, Reimer, PE, Reinhold, J, Roche, J, Rock, SE, Schulte, E, Segbefia, E, Smith, C, Smith, GR, Stoler, P, Tadevosyan, V, Tang, L, Telfeyan, J, Todor, L, Ungaro, M, Uzzle, A, Vidakovic, S, Villano, A, Vulcan, WF, Warren, G, Wesselmann, F, Wojtsekhowski, B, Wood, SA, Yan, C, and Zihlmann, B

Subjects
Particle and Plasma Physics, Molecular, Nuclear, Nuclear Experiment, Atomic, Nuclear & Particles Physics
Abstract

Structure functions, as measured in lepton-nucleon scattering, have proven to be very useful in studying the partonic dynamics within the nucleon. However, it is experimentally difficult to separately determine the longitudinal and transverse structure functions, and consequently there are substantially less data available in particular for the longitudinal structure function. Here, we present separated structure functions for hydrogen and deuterium at low four-momentum transfer squared, Q2

Published
2018

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