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Start Over Author "Dalton MM" Publisher escholarship, university of california
13 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. Measurement of the J/ψ photoproduction cross section over the full near-threshold kinematic region

Author

Adhikari, S, Afzal, F, Akondi, CS, Albrecht, M, Amaryan, M, Arroyave, V, Asaturyan, A, Austregesilo, A, Baldwin, Z, Barbosa, F, Barlow, J, Barriga, E, Barsotti, R, Beattie, TD, Berdnikov, VV, Black, T, Boeglin, W, Briscoe, WJ, Britton, T, Brooks, WK, Byer, D, Chudakov, E, Cole, PL, Cortes, O, Crede, V, Dalton, MM, Darulis, D, Deur, A, Dobbs, S, Dolgolenko, A, Dotel, R, Dugger, M, Dzhygadlo, R, Ebersole, D, Egiyan, H, Erbora, T, Eugenio, P, Fabrizi, A, Fanelli, C, Fang, S, Fegan, S, Fitches, J, Foda, AM, Furletov, S, Gan, L, Gao, H, Gardner, A, Gasparian, A, Gleason, C, Goetzen, K, Goryachev, VS, Grube, B, Guo, J, Guo, L, Hague, TJ, Hakobyan, H, Hernandez, J, Hoffman, ND, Hornidge, D, Hou, G, Huber, GM, Hurck, P, Hurley, A, Imoehl, W, Ireland, DG, Ito, MM, Jaegle, I, Jarvis, NS, Jeske, T, Jones, RT, Kakoyan, V, Kalicy, G, Khachatryan, V, Khatchatryan, M, Kourkoumelis, C, LaDuke, A, Larin, I, Lawrence, D, Lersch, DI, Li, H, Li, WB, Liu, B, Livingston, K, Lolos, GJ, Lorenti, L, Lyubovitskij, V, Mack, D, Mahmood, A, Martel, PP, Marukyan, H, Matveev, V, McCaughan, M, McCracken, M, Meyer, CA, Miskimen, R, Mitchell, RE, Mizutani, K, Neelamana, V, Ng, L, and Nissen, E

Subjects
Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, Nuclear and plasma physics
Abstract

We report the total and differential cross sections for J/ψ photoproduction with the large acceptance GlueX spectrometer for photon beam energies from the threshold at 8.2 GeV up to 11.44 GeV and over the full kinematic range of momentum transfer squared, t. Such coverage facilitates the extrapolation of the differential cross sections to the forward (t=0) point beyond the physical region. The forward cross section is used by many theoretical models and plays an important role in understanding J/ψ photoproduction and its relation to the J/ψ-proton interaction. These measurements of J/ψ photoproduction near threshold are also crucial inputs to theoretical models that are used to study important aspects of the gluon structure of the proton, such as the gluon generalized parton distribution of the proton, the mass radius of the proton, and the trace anomaly contribution to the proton mass. We observe possible structures in the total cross section energy dependence and find evidence for contributions beyond gluon exchange in the differential cross section close to threshold, both of which are consistent with contributions from open-charm intermediate states.

Published
2023

3. 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
Nuclear and Plasma Physics, Physical Sciences, Nuclear and plasma 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

4. Measurement of the EMC effect in light and heavy nuclei

Author

Arrington, J, Bane, J, Daniel, A, Fomin, N, Gaskell, D, Seely, J, Asaturyan, R, Benmokhtar, F, Boeglin, W, Bosted, P, Bukhari, MHS, Christy, ME, Connell, S, Dalton, MM, Day, D, Dunne, J, Dutta, D, Fassi, L El, Ent, R, Fenker, H, Gao, H, Holt, RJ, Horn, T, Hungerford, E, Jones, MK, Jourdan, J, Kalantarians, N, Keppel, CE, Kiselev, D, Lung, AF, Malace, S, Meekins, DG, Mertens, T, Mkrtchyan, H, Niculescu, G, Niculescu, I, Potterveld, DH, Perdrisat, C, Punjabi, V, Qian, X, Reimer, PE, Roche, J, Rodriguez, VM, Rondon, O, Schulte, E, Slifer, K, Smith, GR, Solvignon, P, Tadevosyan, V, Tang, L, Testa, G, Trojer, R, Tvaskis, V, Wesselmann, FR, Wood, SA, Yuan, L, and Zheng, X

Subjects
Nuclear and Plasma Physics, Synchrotrons and Accelerators, Physical Sciences, Nuclear and plasma physics
Abstract

Inclusive electron scattering from nuclear targets has been measured to extract the nuclear dependence of the inelastic cross section (σA) in Hall C at the Thomas Jefferson National Accelerator facility. Results are presented for H2, He3, He4, B9, C12, Cu63, and Au197 at an incident electron beam energy of 5.77 GeV for a range of momentum transfer from Q2 = 2 to 7 (GeV/c)2. These data improve the precision of the existing measurements of the EMC effect in the nuclear targets at large x and allow for more detailed examinations of the A dependence of the EMC effect.

Published
2021

5. Measurement of the beam-normal single-spin asymmetry for elastic electron scattering from C12 and Al27

Author

Androić, 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, Elaasar, 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, Nelyubin, V, Nuruzzaman, 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, Suleiman, R, Tadevosyan, V, Tobias, WA, Tvaskis, V, Waidyawansa, B, Wang, P, Wells, SP, Wood, SA, Zang, P, and Zhamkochyan, S

Subjects
Clinical Research, nucl-ex
Abstract

We report measurements of the parity-conserving beam-normal single-spinelastic scattering asymmetries $B_n$ on $^{12}$C and $^{27}$Al, obtained withan electron beam polarized transverse to its momentum direction. Thesemeasurements add an additional kinematic point to a series of previousmeasurements 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 energyof 1.158 GeV. The average lab scattering angle for both targets was 7.7degrees, and the average $Q^2$ for both targets was 0.02437 GeV$^2$ (Q=0.1561GeV). The asymmetries are $B_n$ = -10.68 $\pm$ 0.90 stat) $\pm$ 0.57 (syst) ppmfor $^{12}$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 arecompared to existing data. When scaled by Z/A, the Q-dependence of all thefar-forward angle (theta < 10 degrees) data from $^{1}$H to $^{27}$Al can bedescribed by the same slope out to $Q \approx 0.35$ GeV. Larger-angle data fromother experiments in the same Q range are consistent with a slope about twiceas steep.

Published
2021

6. 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
Nuclear and Plasma Physics, Synchrotrons and Accelerators, Physical Sciences, Particle and High Energy Physics, nucl-ex, Nuclear and plasma physics
Abstract

We report measurements of the parity-conserving beam-normal single-spinelastic scattering asymmetries $B_n$ on $^{12}$C and $^{27}$Al, obtained withan electron beam polarized transverse to its momentum direction. Thesemeasurements add an additional kinematic point to a series of previousmeasurements 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 energyof 1.158 GeV. The average lab scattering angle for both targets was 7.7degrees, and the average $Q^2$ for both targets was 0.02437 GeV$^2$ (Q=0.1561GeV). The asymmetries are $B_n$ = -10.68 $\pm$ 0.90 stat) $\pm$ 0.57 (syst) ppmfor $^{12}$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 arecompared to existing data. When scaled by Z/A, the Q-dependence of all thefar-forward angle (theta < 10 degrees) data from $^{1}$H to $^{27}$Al can bedescribed by the same slope out to $Q \approx 0.35$ GeV. Larger-angle data fromother experiments in the same Q range are consistent with a slope about twiceas steep.

Published
2021

7. 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, 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, Li, S, Lindgren, R, Long, E, Mammei, J, Margaziotis, DJ, Markowitz, P, Meekins, D, Meziani, ZE, Michaels, R, Mihovilovic, M, Muangma, N, Camacho, CM, 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
nucl-ex
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

8. Measurements of Nonsinglet Moments of the Nucleon Structure Functions and Comparison to Predictions from Lattice QCD for Q2=4 GeV2

Author

Albayrak, I, Mamyan, V, Christy, ME, Ahmidouch, A, Arrington, J, Asaturyan, A, Bodek, A, Bosted, P, Bradford, R, Brash, E, Bruell, A, Butuceanu, C, Coleman, SJ, Commisso, M, Connell, SH, Dalton, MM, Danagoulian, S, Daniel, A, Day, DB, Dhamija, S, Dunne, J, Dutta, D, Ent, R, Gaskell, D, Gasparian, A, Gran, R, Horn, T, Huang, Liting, Huber, GM, Jayalath, C, Johnson, M, Jones, MK, Kalantarians, N, Liyanage, A, Keppel, CE, Kinney, E, Li, Y, Malace, S, Manly, S, Markowitz, P, Maxwell, J, Mbianda, NN, McFarland, KS, Meziane, M, Meziani, ZE, Mills, GB, Mkrtchyan, H, Mkrtchyan, A, Mulholland, J, Nelson, J, Niculescu, G, Niculescu, I, Pentchev, L, Puckett, A, Punjabi, V, Qattan, IA, Reimer, PE, Reinhold, J, Rodriguez, VM, Rondon-Aramayo, O, Sakuda, M, Sakumoto, WK, Segbefia, E, Seva, T, Sick, I, Slifer, K, Smith, GR, Steinman, J, Solvignon, P, Tadevosyan, V, Tajima, S, Tvaskis, V, Vulcan, WF, Walton, T, Wesselmann, FR, Wood, SA, and Ye, Zhihong

Subjects
Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, E06-009 Collaboration, nucl-ex, Mathematical Sciences, Engineering, General Physics, Mathematical sciences, Physical sciences
Abstract

We present extractions of the nucleon nonsinglet moments utilizing new precision data on the deuteron F_{2} structure function at large Bjorken-x determined via the Rosenbluth separation technique at Jefferson Lab Experimental Hall C. These new data are combined with a complementary set of data on the proton previously measured in Hall C at similar kinematics and world datasets on the proton and deuteron at lower x measured at SLAC and CERN. The new Jefferson Lab data provide coverage of the upper third of the x range, crucial for precision determination of the higher moments. In contrast to previous extractions, these moments have been corrected for nuclear effects in the deuteron using a new global fit to the deuteron and proton data. The obtained experimental moments represent an order of magnitude improvement in precision over previous extractions using high x data. Moreover, recent exciting developments in lattice QCD calculations provide a first ever comparison of these new experimental results with calculations of moments carried out at the physical pion mass, as well as a new approach that first calculates the quark distributions directly before determining moments.

Published
2019

9. Probing for high momentum protons in $^4$He via the $^4He(e,e'p)X$ reaction

Author

Iqbal, S, Benmokhtar, F, Ivanov, M, See, N, Aniol, K, Higinbotham, DW, Boyd, C, Gadsby, A, Gilad, S, Saha, A, Udias, JM, Goodwill, JS, Finton, D, Boyer, A, 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, Gueye, 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, 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
nucl-ex
Abstract

Experimental cross sections for the $^4He(e,e'p)X$ reaction up to a missingmomentum of 0.632 GeV/$c$ at $x_B=1.24$ and $Q^2$=2(GeV/$c$)$^2$ are reported.The data are compared to Relativistic Distorted Wave ImpulseApproximation(RDWIA) calculations for $^4He(e,e'p)^3H$ channel. Significantlymore events in the triton mass region are measured for $p_{m}$$>$0.45 GeV/$c$than are predicted by the theoretical model, suggesting that the effects ofinitial-state multi-nucleon correlations are stronger than expected by theRDWIA model.

Published
2019

10. 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
nucl-ex
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

11. 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, El Khayari, N, 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

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

12. The MOLLER Experiment: An Ultra-Precise Measurement of the Weak Mixing Angle Using Møller Scattering

Author

Collaboration, MOLLER, Benesch, J, Brindza, P, Carlini, RD, Chen, J-P, Chudakov, E, Covrig, S, Dalton, MM, Deur, A, Gaskell, D, Gavalya, A, Gomez, J, Higinbotham, DW, Keppel, C, Meekins, D, Michaels, R, Moffit, B, Roblin, Y, Suleiman, R, Wines, R, Wojtsekhowski, B, Cates, G, Crabb, D, Day, D, Gnanvo, K, Keller, D, Liyanage, N, Nelyubin, VV, Nguyen, H, Norum, B, Paschke, K, Sulkosky, V, Zhang, J, Zheng, X, Birchall, J, Blunden, P, Gericke, MTW, Falk, WR, Lee, L, Mammei, J, Page, SA, Oers, WTH van, Dehmelt, K, Deshpande, A, Feege, N, Hemmick, TK, Kumar, KS, Kutz, T, Miskimen, R, Ramsey-Musolf, MJ, Riordan, S, Saylor, N Hirlinger, Bessuille, J, Ihloff, E, Kelsey, J, Kowalski, S, Silwal, R, Cataldo, G De, Leo, R De, Bari, D Di, Lagamba, L, Bellini, E NappiV, Mammoliti, F, Noto, F, Sperduto, ML, Sutera, CM, Cole, P, Forest, TA, Khandekar, M, McNulty, D, Aulenbacher, K, Baunack, S, Maas, F, Tioukine, V, Gilman, R, Myers, K, Ransome, R, Tadepalli, A, Beniniwattha, R, Holmes, R, Souder, P, Armstrong, DS, Averett, TD, Deconinck, W, Duvall, W, Lee, A, Pitt, ML, Dunne, JA, Dutta, D, Fassi, L El, Persio, F De, Meddi, F, Urciuoli, GM, Cisbani, E, Fanelli, C, Garibaldi, F, Johnston, K, Simicevic, N, Wells, S, and King, PM

Subjects
nucl-ex, hep-ph
Abstract

The physics case and an experimental overview of the MOLLER (Measurement Of aLepton Lepton Electroweak Reaction) experiment at the 12 GeV upgraded JeffersonLab are presented. A highlight of the Fundamental Symmetries subfield of the2007 NSAC Long Range Plan was the SLAC E158 measurement of the parity-violatingasymmetry $A_{PV}$ in polarized electron-electron (M{\o}ller) scattering. Theproposed MOLLER experiment will improve on this result by a factor of five,yielding the most precise measurement of the weak mixing angle at low or highenergy anticipated over the next decade. This new result would be sensitive tothe interference of the electromagnetic amplitude with new neutral currentamplitudes as weak as $\sim 10^{-3}\cdot G_F$ from as yet undiscovered dynamicsbeyond the Standard Model. The resulting discovery reach is unmatched by anyproposed experiment measuring a flavor- and CP-conserving process over the nextdecade, and yields a unique window to new physics at MeV and multi-TeV scales,complementary to direct searches at high energy colliders such as the LargeHadron Collider (LHC). The experiment takes advantage of the unique opportunityprovided by the upgraded electron beam energy, luminosity, and stability atJefferson Laboratory and the extensive experience accumulated in the communityafter a round of recent successfully completed parity-violating electronscattering experiments

Published
2014

13. Probing for high-momentum protons in He 4 via the He 4 (e,e′p)X reactions

Author

Iqbal, S, 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, 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, Gilman, R, Glamazdin, S, Gu, C, Guèye, P, Hanretty, C, Hansen, JO, Shabestari, MH, 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, 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, Selvy, L, Shahinyan, A, Shneor, R, Sirca, S, Slifer, K, Sparveris, N, Subedi, R, Sulkosky, V, Wang, D, Watson, JW, Weinstein, LB, Iqbal, S, 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, 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, Gilman, R, Glamazdin, S, Gu, C, Guèye, P, Hanretty, C, Hansen, JO, Shabestari, MH, 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, 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, Selvy, L, Shahinyan, A, Shneor, R, Sirca, S, Slifer, K, Sparveris, N, Subedi, R, Sulkosky, V, Wang, D, Watson, JW, and Weinstein, LB

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

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