Journalartikel

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


AutorenlisteChristiaens, 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.

Jahr der Veröffentlichung2023

ZeitschriftPhysical Review Letters

Bandnummer130

Heftnummer21

ISSN0031-9007

eISSN1079-7114

DOI Linkhttps://doi.org/10.1103/PhysRevLett.130.211902

VerlagAmerican Physical Society


Abstract
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.



Zitierstile

Harvard-ZitierstilChristiaens, G., Defurne, M., Sokhan, D., Achenbach, P., Akbar, Z., Amaryan, M., et al. (2023) First CLAS12 Measurement of Deeply Virtual Compton Scattering Beam-Spin Asymmetries in the Extended Valence Region, Physical Review Letters, 130(21), Article 211902. https://doi.org/10.1103/PhysRevLett.130.211902

APA-ZitierstilChristiaens, G., Defurne, M., Sokhan, D., Achenbach, P., Akbar, Z., Amaryan, M., Atac, H., Avakian, H., Gayoso, C., Baashen, L., Baltzell, N., Barion, L., Bashkanov, M., Battaglieri, M., Bedlinskiy, I., Benkel, B., Benmokhtar, F., Bianconi, A., Biselli, A., ...Zurek, M. (2023). First CLAS12 Measurement of Deeply Virtual Compton Scattering Beam-Spin Asymmetries in the Extended Valence Region. Physical Review Letters. 130(21), Article 211902. https://doi.org/10.1103/PhysRevLett.130.211902



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