Publications
Publication Information
| Title | Extraction of beam-spin asymmetries from the hard exclusive n+ channel off protons in a wide range of kinematics |
| Authors | Stefan Diehl, Kyungseon Joo, Andrey Kim, Harutyun Avagyan, Peter Kroll, Kil Park, David Riser, Kirill Semenov-Tyan-Shanskiy, Kemal Tezgin, Shankar Adhikari, Moskov Amaryan, Giovanni Angelini, Gegham Asryan, Hamza Atac, Luca Barion, Marco Battaglieri, Ivan Bedlinskiy, Fatiha Benmokhtar, Andrea Bianconi, Francesco Bossu, Sergey Boyarinov, William Briscoe, William Brooks, Dilini Bulumulla, Volker Burkert, Daniel Carman, Jose Carvajal, Andrea Celentano, Pierre Chatagnon, Taya Chetry, GIUSEPPE CIULLO, L. Clark, Marco Contalbrigo, Annalisa D'Angelo, Natalya Dashyan, Raffaella De Vita, Maxime Defurne, Alexandre Deur, Christopher Dilks, Chaden Djalali, Raphael Dupre, Hovanes Egiyan, Mathieu Ehrhart, Ahmed El Alaoui, Lamiaa El Fassi, Paul Eugenio, Alessandra Filippi, Tony Forest, Yeranuhi Ghandilyan, Gerard Gilfoyle, Kevin Giovanetti, Francois-Xavier Girod-Gard, Derek Glazier, Evgeny Golovach, Ralf Gothe, Keith Griffioen, Michel Guidal, Lei Guo, Hayk Hakobyan, Nathan Harrison, Mohammad Hattawy, Timothy Hayward, David Heddle, Ken Hicks, Maurik Holtrop, Yordanka Ilieva, David Ireland, Boris Ishkhanov, Evgeny Isupov, David Jenkins, Hyon-Suk Jo, Sylvester Joosten, Dustin Keller, Mariana Khachatryan, Achyut Khanal, Mahbub Khandaker, Chan Kim, Wooyoung Kim, Valery Kubarovsky, Sebastian Kuhn, Lucilla Lanza, Marco Leali, Paolo Lenisa, Kenneth Livingston, Ian MacGregor, Dominique Marchand, Nikolay Markov, Luca Marsicano, Valerio Mascagna, Bryan McKinnon, Zein-Eddine Meziani, Taisiya Mineeva, Marco Mirazita, Viktor Mokeev, Carlos Munoz Camacho, Pawel Nadel-Turonski, Mikhail Osipenko, Michael Paolone, Luciano Pappalardo, Eugene Pasyuk, William Phelps, Oleg Pogorelko, John Price, Yelena Prok, Brian Raue, Marco Ripani, Alessandro Rizzo, Patrizia Rossi, Joseph Rowley, Franck Sabatie, Carlos Salgado, Axel Schmidt, Reinhard Schumacher, Youri Sharabian, Utsav Shrestha, Orlando Soto Sandoval, Nikolaos Sparveris, Stepan Stepanyan, Paul Stoler, Igor Strakovsky, Steffen Strauch, Joshua Artem Tan, Nicholas Tyler, Maurizio Ungaro, Luca Venturelli, Hakob Voskanyan, Eric Voutier, Daniel Watts, Xiangdong Wei, Michael Wood, Nicholas Zachariou, Jixie Zhang, Zhiwen Zhao |
| JLAB number | JLAB-PHY-20-3165 |
| LANL number | arXiv:2007.15677 |
| Other number | DOE/OR/23177-4945 |
| Document Type(s) | (Journal Article) |
| Associated with EIC: | No |
| Supported by Jefferson Lab LDRD Funding: | No |
| Funding Source: | Nuclear Physics (NP) |
| Other Funding: | DE-FG02-04ER41309 |
|
Journal Compiled for Physical Review Letters Volume 125 Page(s) 182001 Refereed | |
| Publication Abstract: | We have measured beam-spin asymmetries to extract the sin phi moment A ^sin phi/LU from the hard exclusive ep ->e'n pi+ reaction above the resonance region, for the first time with nearly full coverage from forward to backward angles in the center-of-mass. The A ^sin phi/LU moment has been measured up to 6.6 GeV2 in -t, covering the kinematic regimes of Generalized Parton Distributions (GPD) and baryon-to-meson Transition Distribution Amplitudes (TDA) at the same time. The experimental results in very forward kinematics demonstrate the sensitivity to chiral-odd and chiral-even GPDs. In very backward kinematics where the TDA framework is applicable, we found A ^sin phi/LU to be negative, while a sign change was observed near 90deg. in the center-of-mass. The unique results presented in this paper will provide critical constraints to establish reaction mechanisms that can help to further develop the GPD and TDA frameworks. |
| Experiment Numbers: | |
| Group: | Hall B |
| Document: | |
| DOI: | https://doi.org/10.1103/PhysRevLett.125.182001 |
| Accepted Manuscript: | pip_paper_Diehl.pdf |
| Supporting Documents: | |
| Supporting Datasets: | |