First CLAS12 Measurement of Deeply Virtual Compton Scattering Beam-Spin Asymmetries in the Extended Valence Region

  • Christiaens, G.; 
  • Defurne, M.; 
  • Sokhan, D.; 
  • Achenbach, P.; 
  • Akbar, Z.; 
  • ... Jo, H. S.; 
  • 외 164명
Citations

WEB OF SCIENCE

22
Citations

SCOPUS

20

초록

Deeply virtual Compton scattering (DVCS) allows one to probe generalized parton distributions 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 unpolarized protons. The results greatly extend the Q2 and Bjorken-x phase space beyond the existing data in the valence region and provide 1600 new data points measured with unprecedented statistical uncertainty, setting new, tight constraints for future phenomenological studies.

키워드

MESON ELECTROPRODUCTION; UNBIASED DETERMINATION
제목
First CLAS12 Measurement of Deeply Virtual Compton Scattering Beam-Spin Asymmetries in the Extended Valence Region
저자
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.; Bossu, 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.; El Alaoui, A.; El Fassi, L.; 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.; Keller, D.; Khachatryan, M.; Khanal, A.; Kim, W.; Kripko, A.; Kubarovsky, V.; Kuhn, S. E.; Lagerquist, V.; Lanza, L.; Kabir, M. 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, Trevor; Richards, J.; Ripani, M.; Ritman, J.; Rossi, P.; Sabatie, 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.; Zurek, M.
DOI
10.1103/PhysRevLett.130.211902
발행일
2023-05-25
유형
Article
저널명
Physical Review Letters
권
130
호
21