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Title Beam-Target Helicity Asymmetry for $\vec{y} \vec{n} \rightarrow p^- p$ in the {\bf{$N^*$} Resonance Region
Authors Dao Ho, Peng Peng, Christopher Bass, Patrick Collins, Annalisa D'Angelo, Alexandre Deur, Jamie Fleming, Charles Hanretty, Tsuneo Kageya, Mahbub Khandaker, Franz Klein, Eberhard Klempt, Vivien Laine, Michael Lowry, H. Lu, Chandra Nepali, V. Nikonov, Thomas O'Connell, Andrew Sandorfi, Andrey Sarantsev, Reinhard Schumacher, Igor Strakovsky, Alfred Svarc, Natalie Walford, Xiangdong Wei, Charles Whisnant, Ron Workman, Irene Zonta, Krishna Adhikari, Dasuni Adikaram, Zulkaida Akbar, Moskov Amaryan, Sergio Pereira, Harutyun Avagyan, Jacques Ball, Mikhail Bashkanov, Marco Battaglieri, V. Batourine, Ivan Bedlinskiy, William Briscoe, Volker Burkert, Daniel Carman, Andrea Celentano, Gabriel Charles, Taya Chetry, GIUSEPPE CIULLO, L. Clark, Luca Colaneri, Philip Cole, Marco Contalbrigo, Volker Crede, Natalya Dashyan, Enzo De Sanctis, Raffaella De Vita, Chaden Djalali, Raphael Dupre, Ahmed El Alaoui, Lamiaa El Fassi, Latifa Elouadrhiri, Gleb Fedotov, Stuart Fegan, Robert Fersch, Alessandra Filippi, Ahmed Fradi, Yeranuhi Ghandilyan, Gerard Gilfoyle, Francois-Xavier Girod-Gard, Derek Glazier, Colin Gleason, Wesley Gohn, Evgeny Golovach, Ralf Gothe, Keith Griffioen, Michel Guidal, Lei Guo, Hayk Hakobyan, Nathan Harrison, Ken Hicks, Maurik Holtrop, Simon Hughes, Yordanka Ilieva, David Ireland, Boris Ishkhanov, Evgeny Isupov, David Jenkins, Hao Jiang, Hyon-Suk Jo, Kyungseon Joo, Sylvester Joosten, Dustin Keller, Grigor Khachatryan, Andrey Kim, Wooyoung Kim, Andi Klein, Valery Kubarovsky, Sergey Kuleshov, Lucilla Lanza, Paolo Lenisa, Kenneth Livingston, Ian MacGregor, Nikolay Markov, Bryan McKinnon, Taisiya Mineeva, Viktor Mokeev, Rachel Montgomery, Aram Movsisyan, Carlos Munoz Camacho, Gavin Murdoch, Silvia Niccolai, Gabriel Niculescu, Mikhail Osipenko, Michael Paolone, Rafayel Paremuzyan, Eugene Pasyuk, William Phelps, Oleg Pogorelko, John Price, Sebastien Procureur, Dan Protopopescu, Marco Ripani, David Riser, Barry Ritchie, Alessandro Rizzo, Guenther Rosner, Franck Sabatie, Carlos Salgado, Youri Sharabian, Iuliia Skorodumina, Gregory Smith, Daniel Sober, Daria Sokhan, Nikolaos Sparveris, Steffen Strauch, Ye Tian, Bayram Torayev, Maurizio Ungaro, Hakob Voskanyan, Daniel Watts, Micheal Wood, Nicholas Zachariou, J. Zhang, Zhiwen Zhao, Kijun Park
JLAB number JLAB-PHY-17-2438
LANL number arXiv:1705.04713
Other number DOE/OR/23177-4109
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 Letters
Volume 118
Issue 24
Page(s) 242002
Refereed
Publication Abstract: We report the first beam-target double-polarization asymmetries in the $\gamma + n(p) \rightarrow \pi^- + p(p)$ reaction spanning the nucleon resonance region from invariant mass $W$= $1500$ to $2300$ MeV. Circularly polarized photons and longitudinally polarized deuterons in $HD$ have been used with the CLAS detector at Jefferson Lab. The exclusive final state has been extracted using three very different analysis techniques that show excellent agreement, and these have been used to deduce the {\it{E}} polarization observable for an effective neutron target. These results have been incorporated into new partial wave analyses, and have led to revised values for several $\gamma nN^*$ resonance photo-couplings.
Experiment Numbers: E06-101
Group: Hall B
Document: pdf
DOI: https://doi.org/10.1103/PhysRevLett.118.242002
Accepted Manuscript: 1705.04713.pdf
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