Publications
Publication Information
| Title | Semi-Inclusive $n_0$ target and beam-target asymmetries from 6 GeV electron scattering with CLAS |
| Authors | Sucheta Jawalkar, Suman Koirala, Harutyun Avagyan, Peter Bosted, Keith Griffioen, Christopher Keith, Sebastian Kuhn, Krishna Adhikari, Shankar Adhikari, Dasuni Adikaram, Zulkaida Akbar, Moskov Amaryan, Sergio Pereira, Jacques Ball, Nathan Baltzell, Marco Battaglieri, V. Batourine, Ivan Bedlinskiy, Angela Biselli, Sergey Boyarinov, William Briscoe, James Brock, William Brooks, Stephen Bueltmann, Volker Burkert, Frank Cao, Christopher Carlin, Daniel Carman, Andrea Celentano, Gabriel Charles, Taya Chetry, GIUSEPPE CIULLO, L. Clark, Luca Colaneri, Philip Cole, Marco Contalbrigo, Olga Cortes Becerra, Volker Crede, Annalisa D'Angelo, Natalya Dashyan, Raffaella De Vita, Enzo De Sanctis, Maxime Defurne, Alexandre Deur, Chaden Djalali, Gail Dodge, Raphael Dupre, Hovanes Egiyan, Ahmed El Alaoui, Lamiaa El Fassi, Latifa Elouadrhiri, Paul Eugenio, Gleb Fedotov, Stuart Fegan, Robert Fersch, Alessandra Filippi, Jamie Fleming, Tony Forest, Ahmed Fradi, Michel Garcon, Yeranuhi Ghandilyan, Gerard Gilfoyle, Kevin Giovanetti, Francois-Xavier Girod-Gard, Colin Gleason, Wesley Gohn, Evgeny Golovach, Ralf Gothe, Michel Guidal, Nevzat Guler, Lei Guo, Hayk Hakobyan, Charles Hanretty, Nathan Harrison, Mohammad Hattawy, David Heddle, Ken Hicks, Gary Hollis, Maurik Holtrop, Simon Hughes, Yordanka Ilieva, David Ireland, Boris Ishkhanov, Evgeny Isupov, David Jenkins, Hao Jiang, Kyungseon Joo, Sylvester Joosten, Dustin Keller, Grigor Khachatryan, Mariana Khachatryan, Mahbub Khandaker, Andrey Kim, Wooyoung Kim, Andi Klein, Franz Klein, Valery Kubarovsky, Sergey Kuleshov, Lucilla Lanza, Paolo Lenisa, Kenneth Livingston, Haiyun Lu, Ian MacGregor, Nikolay Markov, Michael Mayer, Michael McCracken, Bryan McKinnon, Curtis Meyer, Taisiya Mineeva, Marco Mirazita, Viktor Mokeev, Rachel Montgomery, Aram Movsisyan, Carlos Munoz Camacho, Pawel Nadel-Turonski, Lelia Net, Silvia Niccolai, Gabriel Niculescu, Maria Niculescu, Mikhail Osipenko, Alexander Ostrovidov, Rafayel Paremuzyan, Kil Park, Eugene Pasyuk, Evan Phelps, William Phelps, Josh Pierce, Silvia Pisano, Oleg Pogorelko, John Price, Yelena Prok, Dan Protopopescu, Brian Raue, Marco Ripani, David Riser, Alessandro Rizzo, Guenther Rosner, Patrizia Rossi, Franck Sabatie, Carlos Salgado, Reinhard Schumacher, Erin Seder, Youri Sharabian, Ani Simonyan, Iuliia Skorodumina, Gary Smith, Daniel Sober, Daria Sokhan, Nikolaos Sparveris, Ivana Stankovic, Steffen Strauch, Mauro Taiuti, Maurizio Ungaro, Hakob Voskanyan, Eric Voutier, Natalie Walford, Daniel Watts, Xiangdong Wei, Lawrence Weinstein, Michael Wood, Nicholas Zachariou, Jixie Zhang, Zhiwen Zhao |
| JLAB number | JLAB-PHY-17-2567 |
| LANL number | arXiv:1709.10054 |
| Other number | DOE/OR/23177-4232 |
| Document Type(s) | (Journal Article) |
| Associated with EIC: | No |
| Supported by Jefferson Lab LDRD Funding: | No |
| Funding Source: | Nuclear Physics (NP) |
|
Journal Compiled for Physics Letters B Volume 782 Page(s) 662–667 Refereed | |
| Publication Abstract: | We present precision measurements of the target and beam-target spin asymmetries from neutral pion electroproduction in deep-inelastic scattering (DIS) using the CEBAF Large Acceptance Spectrometer (CLAS) at Jefferson Lab. We scattered 6-GeV, longitudinally polarized electrons off longitudinally polarized protons in a cryogenic $^{14}$NH$_3$ target, and extracted double and single target spin asymmetries for $ep\rightarrow e^\prime\pi^0X$ in multidimensional bins in four-momentum transfer ($1.0 lt Q^2 lt 3.2$ GeV$^2$), Bjorken-$x$ ($0.12 lt x lt 0.48$), hadron energy fraction ($0.4 lt z lt 0.7$), transverse pion momentum ($0 lt P_T lt 1.0$ GeV), and azimuthal angle $\phi_h$ between the lepton scattering and hadron production planes. We extracted asymmetries as a function of both $x$ and $P_T$, which provide access to transverse-momentum distributions of longitudinally polarized quarks. The double spin asymmetries depend weakly on $P_T$. The $\sin 2\phi_h$ moments are zero within uncertainties, which is consistent with the expected suppression of the Collins fragmentation function. The observed $\sin\phi_h$ moments suggest that quark gluon correlations are significant at large $x$. |
| Experiment Numbers: | |
| Group: | Hall B |
| Document: | |
| DOI: | https://doi.org/10.1016/j.physletb.2018.06.014 |
| Accepted Manuscript: | 1-s2.0-S0370269318304623-main.pdf |
| Supporting Documents: | |
| Supporting Datasets: | |