Publications
Publication Information
| Title | Beam-spin asymmetry Sigma for Sigma^- hyperon photoproduction off the neutron |
| Authors | Nicholas Zachariou, Edwin Munevar Espitia, Barry Berman, Petr Bydzovsky, Ales Cieply, Gerald Feldman, Yordanka Ilieva, Pawel Nadel-Turonski, Dalipor Skoupil, Andrey Sarantsev, Daniel Watts, Moskov Amaryan, Giovanni Angelini, Whitney Armstrong, Hamza Atac, Harutyun Avagyan, Luca Barion, Mikhail Bashkanov, Marco Battaglieri, Ivan Bedlinskiy, Fatiha Benmokhtar, Andrea Bianconi, Letterio Biondo, Angela Biselli, Mariangela Bondi, Francesco Bossu, Sergey Boyarinov, William Briscoe, William Brooks, Dilini Bulumulla, Volker Burkert, Daniel Carman, Jose Carvajal, Andrea Celentano, Pierre Chatagnon, Taya Chetry, GIUSEPPE CIULLO, L. Clark, Philip 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, Paul Eugenio, Gleb Fedotov, Stuart Fegan, Alessandra Filippi, Ahmed Fradi, Gagik Gavalian, Gerard Gilfoyle, Francois-Xavier Girod-Gard, Colin Gleason, Anna Golubenko, Ralf Gothe, Keith Griffioen, Michel Guidal, Kawtar Hafidi, Hayk Hakobyan, Mohammad Hattawy, Timothy Hayward, David Heddle, Ken Hicks, Adam Hobart, Maurik Holtrop, David Ireland, Evgeny Isupov, David Jenkins, Hyon-Suk Jo, Kyungseon Joo, Dustin Keller, Achyut Khanal, Mahbub Khandaker, Andrey Kim, Franz Klein, Aron Kripko, Valery Kubarovsky, Lucilla Lanza, Marco Leali, Kenneth Livingston, Ian MacGregor, Dominique Marchand, Nikolay Markov, Luca Marsicano, Valerio Mascagna, Bryan McKinnon, Stefano Migliorati, Taisiya Mineeva, Marco Mirazita, Viktor Mokeev, Carlos Munoz Camacho, Krishna Neupane, Silvia Niccolai, Gabriel Niculescu, Thomas O'Connell, Mikhail Osipenko, Alexander Ostrovidov, Pushpa Pandey, Michael Paolone, Luciano Pappalardo, Rafayel Paremuzyan, Eugene Pasyuk, William Phelps, Oleg Pogorelko, John Price, Yelena Prok, Brian Raue, Marco Ripani, James Ritman, Alessandro Rizzo, Guenther Rosner, Joseph Rowley, Franck Sabatie, Carlos Salgado, Axel Schmidt, Reinhard Schumacher, Youri Sharabian, Evgeny Shirokov, Utsav Shrestha, Daria Sokhan, Orlando Soto Sandoval, Nikolaos Sparveris, Stepan Stepanyan, Paul Stoler, Igor Strakovsky, Steffen Strauch, Richard Tyson, Maurizio Ungaro, Luca Venturelli, Hakob Voskanyan, Anselm Vossen, Eric Voutier, Kevin Wei, Xiangdong Wei, Robert Wishart, Michael Wood, Bradley Yale, Jixie Zhang, Zhiwen Zhao |
| JLAB number | JLAB-PHY-21-3456 |
| LANL number | arXiv:2106.13957 |
| Other number | DOE/OR/23177-5275 |
| 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 827 Page(s) 136985 Refereed | |
| Publication Abstract: | We report a new measurement of the beam-spin asymmetry $\boldsymbol{\Sigma}$ for the $\vec{\gamma} n \rightarrow K^+\Sigma^-$ reaction using quasi-free neutrons in a liquid-deuterium target. The new dataset includes data at previously unmeasured photon energy and angular ranges, thereby providing new constraints on partial wave analyses used to extract properties of the excited nucleon states. The experimental data were obtained using the CEBAF Large Acceptance Spectrometer (CLAS), housed in Hall B of the Thomas Jefferson National Accelerator Facility (JLab). The CLAS detector measured reaction products from a liquid-deuterium target produced by an energy-tagged, linearly polarised photon beam with energies in the range 1.1 to 2.3 GeV. Predictions from an isobar model indicate strong sensitivity to $N(1720)3/2^+$, $\Delta(1900)1/2^-$, and $N(1895)1/2^-$, with the latter being a state not considered in previous photoproduction analyses. When our data are incorporated in the fits of partial-wave analyses, one observes significant changes in $\gamma$-$n$ couplings of the resonances which have small branching ratios to the $\pi N$ channel. |
| Experiment Numbers: | E06-103 |
| Group: | Hall B |
| Document: | |
| DOI: | https://doi.org/10.1016/j.physletb.2022.136985 |
| Accepted Manuscript: | 1-s2.0-S0370269322001198-main.pdf |
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