Publications
Publication Information
| Title | Measurement of the beam asymmetry Sigma and the target asymmetry T in the photoproduction of w mesons off the proton using CLAS at Jefferson Laboratory |
| Authors | Priyashree Roy, Zulkaida Akbar, Sungkyun Park, Volker Crede, Alexei Anisovich, I. Denisenko, Eberhard Klempt, V. Nikonov, Andrey Sarantsev, Krishna Adhikari, Shankar Adhikari, Sergio Pereira, Jacques Ball, Ilaria Balossino, Mikhail Bashkanov, Marco Battaglieri, V. Batourine, Ivan Bedlinskiy, Angela Biselli, Sergey Boyarinov, William Briscoe, James Brock, William Brooks, Christopher Carlin, Daniel Carman, Andrea Celentano, Gabriel Charles, Taya Chetry, GIUSEPPE CIULLO, Brandon Clary, Philip Cole, Marco Contalbrigo, Annalisa D'Angelo, Natalya Dashyan, Raffaella De Vita, Alexandre Deur, Chaden Djalali, Michael Dugger, Raphael Dupre, Ahmed El Alaoui, Lamiaa El Fassi, Latifa Elouadrhiri, Paul Eugenio, Gleb Fedotov, Stuart Fegan, Alessandra Filippi, Ahmed Fradi, Gagik Gavalian, Nerses Gevorgyan, Gerard Gilfoyle, Kevin Giovanetti, Francois-Xavier Girod-Gard, Colin Gleason, Wesley Gohn, Evgeny Golovach, Ralf Gothe, Keith Griffioen, Michel Guidal, Lei Guo, Kawtar Hafidi, Hayk Hakobyan, Charles Hanretty, Mohammad Hattawy, Ken Hicks, Maurik Holtrop, Yordanka Ilieva, David Ireland, Boris Ishkhanov, Evgeny Isupov, David Jenkins, Kyungseon Joo, Sylvester Joosten, Christopher Keith, Dustin Keller, Grigor 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, David Meekins, Curtis Meyer, Zein-Eddine Meziani, Taisiya Mineeva, Viktor Mokeev, Rachel Montgomery, Aram Movsisyan, Carlos Munoz Camacho, Pawel Nadel-Turonski, Silvia Niccolai, Gabriel Niculescu, Mikhail Osipenko, Alexander Ostrovidov, Rafayel Paremuzyan, K. Park, Eugene Pasyuk, Evan Phelps, William Phelps, J. Pierce, Oleg Pogorelko, John Price, Sebastien Procureur, Yelena Prok, Dan Protopopescu, Brian Raue, Marco Ripani, David Riser, Barry Ritchie, Alessandro Rizzo, Franck Sabatie, Carlos Salgado, Reinhard Schumacher, Youri Sharabian, Iuliia Skorodumina, Gregory Smith, Daniel Sober, Daria Sokhan, Nikolaos Sparveris, Stepan Stepanyan, Igor Strakovsky, Steffen Strauch, Mauro Taiuti, Joshua Artem Tan, Bayram Torayev, Maurizio Ungaro, Eric Voutier, Daniel Watts, Xiangdong Wei, Michael Wood, Nicholas Zachariou, Jixie Zhang, Zhiwen Zhao |
| JLAB number | JLAB-PHY-17-2583 |
| LANL number | arXiv:1711.05176 |
| Other number | DOE/OR/23177-4243 |
| Document Type(s) | (Journal Article) |
| Associated with EIC: | No |
| Supported by Jefferson Lab LDRD Funding: | No |
| Funding Source: | Nuclear Physics (NP) |
|
Journal Compiled for Physical Review C Volume 97 Page(s) 055202 Refereed | |
| Publication Abstract: | The photoproduction of w mesons off the proton has been studied in the reaction yp -> pw using the CEBAF Large Acceptance Spectrometer (CLAS) and the frozen-spin target (FROST) in Hall B at the Thomas Jefferson National Accelerator Facility. For the first time, the target asymmetry, T, has been measured in photoproduction from the decay w ->pi+pi-pi0 using a transversely-polarized target with energies ranging from just above the reaction threshold up to 2.8 GeV. Significant non-zero values are observed for these asymmetries, reaching about 30-40% in the third-resonance region. New measurements for the photon-beam asymmetry, Sigma, are also presented, which agree well with previous CLAS results and extend the world database up to 2.1 GeV. These data and additional w photoproduction observables from CLAS were included in a partial-wave analysis within the Bonn-Gatchina framework. Significant contributions from s-channel resonance production were found in addition to t-channel exchange p |
| Experiment Numbers: | E06-013, E05-012, E03-105, E02-112 |
| Group: | Hall B |
| Document: | |
| DOI: | https://doi.org/10.1103/PhysRevC.97.055202 |
| Accepted Manuscript: | JLAB-PHY-17-2583.pdf embargoed final, peer reviewed, accepted manuscript |
| Supporting Documents: | |
| Supporting Datasets: | |