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Publication Information
| Title | Observation of Beam Spin Asymmetries in the Process ep -> e'pi+pi- with CLAS12 | ||||
| Abstract | The observation of beam spin asymmetries in two-pion production in semi-inclusive deep inelastic scattering off an unpolarized proton target is reported for the first time. The data presented here were taken in the fall of 2018 with the CLAS12 spectrometer using a 10.6 GeV longitudinally spin-polarized electron beam delivered by CEBAF at JLab. The measured asymmetries provide the first observation of a signal that can be used to extract the PDF $e(x)$ in a collinear framework and the helicity-dependent two-pion fragmentation function $G_1^\perp$. | ||||
| Author(s) | Timothy Hayward, Christopher Dilks, Anselm Vossen, Harut Avagyan, Shankar Adhikari, Giovanni Angelini, Miguel Arratia Munoz, Hamza Atac, Carlos Ayerbe Gayoso, Nathan Baltzell, Luca Barion, Marco Battaglieri, Ivan Bedlinskiy, Fatiha Benmokhtar, Andrea Bianconi, Angela Biselli, Mariangela Bondi, Francesco Bossu, Sergey Boyarinov, Bill Briscoe, Will Brooks, Dilini Bulumulla, Volker Burkert, Daniel Carman, Jose Carvajal, Andrea Celentano, Pierre Chatagnon, Taya Chetry, Giuseppe Ciullo, Brandon Clary, Phil Cole, Marco Contalbrigo, Giovanni Costantini, Volker Crede, Annalisa D'Angelo, Natalya DASHYAN, Raffaella De Vita, Maxime Defurne, Alexandre Deur, Stefan Diehl, Chaden Djalali, Raphael Dupre, Michael Dugger, Hovanes Egiyan, Mathieu Ehrhart, Ahmed El Alaoui, Lamiaa El Fassi, Latifa Elouadrhiri, Stuart Fegan, Alessandra Filippi, Tony Forest, Gagik Gavalian, Jerry Gilfoyle, Francois-Xavier Girod-Gard, Derek Glazier, Anna Rusova, Ralf Gothe, Yuri Gotra, Keith Griffioen, Michel Guidal, Kawtar Hafidi, Hayk Hakobyan, Mohammad Hattawy, Ken Hicks, Adam Hobart, Maurik Holtrop, David Ireland, Evgeny Isupov, Hyon-Suk Jo, Kyungseon Joo, Sylvester Joosten, Dustin Keller, Mariana Khachatryan, Achyut Khanal, Andrey Kim, Wooyoung Kim, Aron Kripko, Valery Kubarovsky, Sebastian Kuhn, Lucilla Lanza, Marco Leali, Sangbaek Lee, Paolo Lenisa, Kenneth Livingston, Ian Macgregor, Dominique Marchand, Nikolay Markov, Luca Marsicano, Valerio Mascagna, Bryan McKinnon, Zein-Eddine Meziani, Marco Mirazita, Viktor Mokeev, Aram Movsisyan, Carlos Munoz Camacho, Pawel Nadel-Turonski, Paul Naidoo, Krishna Neupane, Silvia Niccolai, Gabriel Niculescu, Thomas O'Connell, Mikhail Osipenko, Michael Paolone, Luciano Pappalardo, Rafayel Paremuzyan, Eugene Pasyuk, William Phelps, Oleg Pogorelko, Yelena Prok, Brian Raue, Marco Ripani, James Ritman, Alessandro Rizzo, Patrizia Rossi, Joseph Rowley, Franck Sabatie, Carlos Salgado, Axel Schmidt, Efrain Segarra, Youri Sharabian, Utsav Shrestha, Orlando Soto Sandoval, Nikos Sparveris, Stepan Stepanyan, Igor Strakovsky, Steffen Strauch, Adam Thornton, Nicholas Tyler, Richard Tyson, Maurizio Ungaro, Luca Venturelli, Hakob Voskanyan, Eric Voutier, Daniel Watts, Kevin Wei, Xiangdong Wei, Mike Wood, Bradley Yale, Nicholas Zachariou, Jixie Zhang | ||||
| Publication Date | April 2021 | ||||
| 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), FG02-96ER41003 | ||||
| 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 | Physical Review Letters |
| Refereed | Yes |
| Volume | 126 |
| Issue | |
| Page(s) | 152501 |
Attachments/Datasets/DOI Link
| Document(s) |
CLAS_Di_hadron_BSA_PRL_from_RGA.pdf
(STI Document)
PhysRevLett.126.152501.pdf
(Accepted Manuscript)
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| DOI Link | |
| Dataset(s) | (none) |
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