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Publication Information
| Title | Beam-Target Helicity Asymmetry E in K+Sigma- Photoproduction on the Neutron | ||||
| Abstract | We report a measurement of a beam-target double-polarisation observable (E) for the yn(p) -> K+Sigma-(p) reaction. The data were obtained impinging the circularly-polarised energy-tagged photon beam of Hall B at Jefferson Lab on a longitudinally-polarised frozen-spin hydrogen deuteride (HD) nuclear target. The E observable for an effective neutron target was determined for centre-of-mass energies 1:70 lte W lte 2:30 GeV, with reaction products detected over a wide angular acceptance by the CLAS spectrometer. These new double-polarisation data give unique constraints on the strange decays of excited neutron states. Inclusion of the new data within the Bonn-Gatchina theoretical model results in significant changes for the extracted photocouplings of a number of established nucleon resonances. Possible improvements in the PWA description of the experimental data with additional 'missing' resonance states, including the N(2120)3=2- resonance, are also quantified. | ||||
| Author(s) | Nicholas Zachariou, Daniel Watts, Jamie Fleming, Andrey Sarantsev, V. Nikonov, Annalisa D'Angelo, Mikhail Bashkanov, Charles Hanretty, Tsuneo Kageya, Franz Klein, Michael Lowry, Haiyun Lu, Andy Sandorfi, Xiangdong Wei, Irene Zonta, Krishna Adhikari, Shankar Adhikari, Moskov Amaryan, Giovanni Angelini, Gegham Asryan, Hamza Atac, Luca Barion, Christopher Bass, Marco Battaglieri, Ivan Bedlinskiy, Fatiha Benmokhtar, Andrea Bianconi, Angela Biselli, Francesco Bossu, Sergey Boyarinov, Bill Briscoe, Will Brooks, Dilini Bulumulla, Volker Burkert, Daniel Carman, Jose Carvajal, Andrea Celentano, Gabriel Charles, Pierre Chatagnon, Taya Chetry, Giuseppe Ciullo, Phil Cole, Marco Contalbrigo, Natalya DASHYAN, Raffaella De Vita, Alexandre Deur, Stefan Diehl, Chaden Djalali, Raphael Dupre, Hovanes Egiyan, Mathieu Ehrhart, Ahmed El Alaoui, Paul Eugenio, Stuart Fegan, Robert Fersch, Alessandra Filippi, Gagik Gavalian, Nerses Gevorgyan, Yeranuhi Ghandilyan, Jerry Gilfoyle, Francois-Xavier Girod-Gard, Wesley Gohn, Evgeny Golovach, Ralf Gothe, Keith Griffioen, Michel Guidal, Kawtar Hafidi, Hayk Hakobyan, Mohammad Hattawy, David Heddle, Ken Hicks, Dao Ho, Maurik Holtrop, Yordanka Ilieva, David Ireland, Boris Ishkhanov, Evgeny Isupov, David Jenkins, Hyon-Suk Jo, Kyungseon Joo, Sylvester Joosten, Dustin Keller, Mariana Khachatryan, Achyut Khanal, Mahbub Khandaker, Chan Kim, Wooyoung Kim, Valery Kubarovsky, Lucilla Lanza, Marco Leali, Paolo Lenisa, Kenneth Livingston, Ian Macgregor, Dominique Marchand, Nikolay Markov, Luca Marsicano, Valerio Mascagna, Michael Mayer, Bryan McKinnon, Zein-Eddine Meziani, Taisiya Mineeva, Viktor Mokeev, Edwin Munevar Espitia, Carlos Munoz Camacho, Pawel Nadel-Turonski, Thomas O'Connell, Mikhail Osipenko, Alexander Ostrovidov, Michael Paolone, Luciano Pappalardo, Kijun Park, Eugene Pasyuk, Peng Peng, William Phelps, Oleg Pogorelko, Jiwan Poudel, John Price, Yelena Prok, Andrew Puckett, Brian Raue, Marco Ripani, Alessandro Rizzo, Guenther Rosner, Carlos Salgado, Axel Schmidt, Reinhard Schumacher, Utsav Shrestha, Daria Sokhan, Orlando Soto Sandoval, Nikos Sparveris, Igor Strakovsky, Steffen Strauch, Joshua Artem Tan, Nicholas Tyler, Maurizio Ungaro, Luca Venturelli, Hakob Voskanyan, Eric Voutier, Natalie Walford, Charles Whisnant, Mike Wood, Jixie Zhang, Zhiwen Zhao | ||||
| Publication Date | September 2020 | ||||
| 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) | ||||
| Proprietary? | No | ||||
| This publication conveys | Technical Science Results | ||||
| Document Numbers |
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| Associated with an experiment | Yes | ||||
| Experiment Number(s) |
E06-101
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| Associated with EIC | No | ||||
| Supported by Jefferson Lab LDRD Funding | No |
Journal Article
| Journal Name | Physics Letters B |
| Refereed | Yes |
| Volume | 808 |
| Issue | |
| Page(s) | 135662 |
Attachments/Datasets/DOI Link
| Document(s) |
KPlusSigmaMinus.pdf
(STI Document)
1-s2.0-S0370269320304652-main.pdf
(Accepted Manuscript)
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| DOI Link | |
| Dataset(s) | (none) |
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