First Measurements of the Double-Polarization Observables \(F\), \(P\), and \(H\) in \(\omega\) Photoproduction off Transversely Polarized Protons in the \(N^\ast\) Resonance Region

First Measurements of the Double-Polarization Observables \(F\), \(P\), and \(H\) in \(\omega\) Photoproduction off Transversely Polarized Protons in the \(N^\ast\) Resonance Region

First measurements of double-polarization observables in \(\omega\) photoproduction off the proton are presented using transverse target polarization and data from the CEBAF Large Acceptance Spectrometer (CLAS) FROST experiment at Jefferson Lab. The beam-target asymmetry \(F\) has been measured usin...

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Veröffentlicht in:arXiv.org 2019-05
Hauptverfasser: Crede, V, Klempt, E, Nikonov, V A, Nakayama, K, Adhikari, K P, Angelini, G, Barion, L, Bedlinskiy, I, Boiarinov, S, Brock, J, Brooks, W K, Burkert, V D, Cao, F, Carman, D S, Celentano, A, Chatagnon, P, Ciullo, G, Cole, P L, Contalbrigo, M, Cortes, O, D'Angelo, A, De Vita, R, De Sanctis, E, Deur, A, Diehl, S, Djalali, C, Dugger, M, Dupre, R, Ehrhart, M, L El Fassi, Eugenio, P, Fegan, S, Filippi, A, Fradi, A, Gilfoyle, G P, Girod, F X, Golovatch, E, Gothe, R W, Guidal, M, Guo, L, Hafidi, K, Harrison, N, Hattawy, M, Hayward, T B, Hicks, K, Jenkins, D, Jo, H S, Johnston, S, Joosten, S, Kabir, M L, Khachatryan, G, Khanal, A, Khandaker, M, Kubarovsky, V, Kuleshov, S V, Kunkel, M C, Lanza, L, Lenisa, P, Livingston, K, MacGregor, I J D, Marchand, D, McKinnon, B, Meekins, D G, Meyer, C A, Mokeev, V, C Munoz Camacho, Nadel-Turonski, P, Niccolai, S, Niculescu, G, Osipenko, M, Ostrovidov, A I, Paolone, M, Pappalardo, L L, Pasyuk, E, Payette, D, Phelps, W, Pierce, J, Pogorelko, O, Prok, Y, Raue, B A, Ripani, M, Riser, D, Ritchie, B G, Rizzo, A, Sabatie, F, Salgado, C, Schumacher, R A, Sharabian, Y G, Skorodumina, Iu, Sokhan, D, Soto, O, Strakovsky, I I, Strauch, S, Tyler, N, Ungaro, M, Voskanyan, H, Walford, N K, Wang, R, Zachariou, N, Zhang, J
Format: Artikel
Sprache:eng
Schlagworte:
Circular polarization
Linear polarization
Mapping
Photons
Photoproduction
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Zusammenfassung:First measurements of double-polarization observables in \(\omega\) photoproduction off the proton are presented using transverse target polarization and data from the CEBAF Large Acceptance Spectrometer (CLAS) FROST experiment at Jefferson Lab. The beam-target asymmetry \(F\) has been measured using circularly polarized, tagged photons in the energy range 1200 - 2700 MeV, and the beam-target asymmetries \(H\) and \(P\) have been measured using linearly polarized tagged photons in the energy range 1200 - 2000 MeV. These measurements significantly increase the database on polarization observables. The results are included in two partial-wave analyses and reveal significant contributions from several nucleon (\(N^\ast\)) resonances. In particular, contributions from new \(N^\ast\) resonances listed in the Review of Particle Properties are observed, which aid in reaching the goal of mapping out the nucleon resonance spectrum.
ISSN:2331-8422
DOI:10.48550/arxiv.1812.02106