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Publication Information
| Title | Beam Spin Asymmetry Measurements of Deeply Virtual pi^0 Production with CLAS12 | ||||
| Abstract | The new experimental measurements of beam spin asymmetry were performed for the deeply virtual exclusive pi^0 production in a wide kinematic region with the photon virtualities Q^2 up to 8 GeV^2 and the Bjorken scaling variable x_B in the valence regime. The data were collected by the CEBAF Large Acceptance Spectrometer (CLAS12) at Jefferson Lab with longitudinally polarized 10.6 GeV electrons scattered on an unpolarized liquid-hydrogen target. Sizable asymmetry values indicate a substantial contribution from transverse virtual photon amplitudes to the polarized structure functions. The interpretation of these measurements in terms of the Generalized Parton Distributtions (GPDs) demonstrates their sensitivity to the chiral-odd GPD E_T, which contains information on quark transverse spin densities in unpolarized and polarized nucleons and provides access to the proton's transverse anomalous magnetic moment. Additionally, the data were compared to a theoretical model based on a Regge | ||||
| Author(s) | Andrey Kim, Stefan Diehl, Kyungseon Joo, Valery Kubarovsky, Patrick Achenbach, Zulkaida Akbar, Juan Alvarado, Whitney Armstrong, Hamza Atac, Harut Avagyan, Carlos Ayerbe Gayoso, Luca Barion, Marco Battaglieri, Ivan Bedlinskiy, Bruno Benkel Balbontin, Andrea Bianconi, Angela Biselli, Mariangela Bondi, Francesco Bossu, S. Boiarinov, Kai Brinkmann, Bill Briscoe, Will Brooks, Stephen Bueltmann, Volker Burkert, Richard Capobianco, Daniel Carman, Jose Carvajal, Andrea Celentano, Gabriel Charles, Pierre Chatagnon, Vitaly Chesnokov, Taya Chetry, Giuseppe Ciullo, Brandon Clary, Geraint Clash, Phil Cole, Marco Contalbrigo, Giovanni Costantini, Volker Crede, 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, Khalid Chouffani EL Fassi, Stuart Fegan, Alessandra Filippi, Caleb Fogler, Gagik Gavalian, Jerry Gilfoyle, Giulia Gosta, Francois-Xavier Girod-Gard, Derek Glazier, Anna Rusova, Dominik Gothe, Lei Guo, Kawtar Hafidi, Hayk Hakobyan, Mohammad Hattawy, Florian Hauenstein, Timothy Hayward, David Heddle, Adam Hobart, Maurik Holtrop, Yu-Chun Hung, Yordanka Ilieva, David Ireland, Evgeny Isupov, Hyon-Suk Jo, Robert Johnston, Sylvester Joosten, Grigor Khachatryan, Achyut Khanal, Wooyoung Kim, Valerii Klimenko, Aron Kripko, Sebastian Kuhn, Lucilla Lanza, Marco Leali, Md Latiful Kabir, Sangbaek Lee, Paolo Lenisa, Xiaqing Li, Ian Macgregor, Dominique Marchand, Valerio Mascagna, Bryan McKinnon, D. Metamoros, Stefano Migliorati, Taisiya Mineeva, Marco Mirazita, Viktor Mokeev, Patrick Moran, Carlos Munoz Camacho, Paul Naidoo, Krishna Neupane, Dien Nguyen, Silvia Niccolai, Gabriel Niculescu, Mikhail Osipenko, Mathieu Ouillon, Pushpa Pandey, Michael Paolone, Luciano Pappalardo, Rafayel Paremuzyan, Eugene Pasyuk, Sebouh Paul, William Phelps, Noemie Pilleux, Madhusudhan Pokhrel, Jiwan Poudel, Jeffrey Price, Yelena Prok, Antonio Radic, Niveditha Ramasubramanian, Trevor Reed, Jared Richards, Marco Ripani, James Ritman, Patrizia Rossi, Franck Sabatie, Carlos Salgado, Susan Schadmand, Axel Schmidt, Youri Sharabian, Evgeny Shirokov, Utsav Shrestha, Daria Sokhan, Nikos Sparveris, Marco Spreafico, Stepan Stepanyan, Igor Strakovsky, Steffen Strauch, Joshua Artem Tan, Nicholaus Trotta, Tyson Kissel, Maurizio Ungaro, Simone Vallarino, Luca Venturelli, Hakob Voskanyan, Eric Voutier, Daniel Watts, Xiangdong Wei, Robert Wishart, Mike Wood, Mikhail Yurov, Nicholas Zachariou, Jinlong Zhang, Veronique Ziegler, Maria Zurek | ||||
| Publication Date | February 2024 | ||||
| Document Type | Journal Article | ||||
| Primary Institution | Thomas Jefferson National Accelerator Facility, Newport News | ||||
| Affiliation | Exp Nuclear Physics / Experimental Halls / Hall B | ||||
| Funding Source | Nuclear Physics (NP) | ||||
| Proprietary? | No | ||||
| This publication conveys | Technical Science Results | ||||
| Document Numbers |
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| Associated with an experiment | No | ||||
| Associated with EIC | No | ||||
| Supported by Jefferson Lab LDRD Funding | No |
Journal Article
| Journal Name | Physics Letters B |
| Refereed | Yes |
| Volume | 849 |
| Issue | |
| Page(s) | 138459 |
Attachments/Datasets/DOI Link
| Document(s) |
AKim_pi0paper_toPLB_FinalAuthorList.pdf
(STI Document)
2307.07874.pdf
(Accepted Manuscript)
|
| DOI Link | |
| Dataset(s) | (none) |
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