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First Measurements of the Double-Polarization Observables F, P, and H in ω Photoproduction off Transversely Polarized Protons in the N
Roy, P; Park, S; Crede, V; Anisovich, A V; Klempt, E; Nikonov, V A; Sarantsev, A V; Wei, N C; Huang, F; Nakayama, K; Adhikari, K P; Adhikari, S; Angelini, G; Avakian, H; Barion, L; Battaglieri, M; Bedlinskiy, I; Biselli, A S; Boiarinov, S; Briscoe, W J; Brock, J; Brooks, W K; Burkert, V D; Cao, F; Carlin, C; Carman, D S; Celentano, A; Chatagnon, P; Chetry, T; Ciullo, G; Cole, P L; Contalbrigo, M; Cortes, O; D'Angelo, A; Dashyan, N; De Vita, R; De Sanctis, E; Deur, A; Diehl, S; Djalali, C; Dugger, M; Dupre, R; Duran, B; Egiyan, H; Ehrhart, M; El Alaoui, A; El Fassi, L; Eugenio, P; Fegan, S; Filippi, A.
Affiliation
  • Roy P; Florida State University, Tallahassee, Florida 32306, USA.
  • Park S; Florida State University, Tallahassee, Florida 32306, USA.
  • Crede V; Florida State University, Tallahassee, Florida 32306, USA.
  • Anisovich AV; Helmholtz-Institut für Strahlen- und Kernphysik, Universität Bonn, 53115 Bonn, Germany.
  • Klempt E; NRC "Kurchatov Institute," PNPI, 188300, Gatchina, Russia.
  • Nikonov VA; Helmholtz-Institut für Strahlen- und Kernphysik, Universität Bonn, 53115 Bonn, Germany.
  • Sarantsev AV; Helmholtz-Institut für Strahlen- und Kernphysik, Universität Bonn, 53115 Bonn, Germany.
  • Wei NC; NRC "Kurchatov Institute," PNPI, 188300, Gatchina, Russia.
  • Huang F; Helmholtz-Institut für Strahlen- und Kernphysik, Universität Bonn, 53115 Bonn, Germany.
  • Nakayama K; NRC "Kurchatov Institute," PNPI, 188300, Gatchina, Russia.
  • Adhikari KP; Zhengzhou University, Zhengzhou, Henan 450001, China.
  • Adhikari S; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China.
  • Angelini G; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China.
  • Avakian H; University of Georgia, Athens, Georgia 30602, USA.
  • Barion L; Old Dominion University, Norfolk, Virginia 23529, USA.
  • Battaglieri M; Florida International University, Miami, Florida 33199, USA.
  • Bedlinskiy I; The George Washington University, Washington, DC 20052, USA.
  • Biselli AS; Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
  • Boiarinov S; INFN, Sezione di Ferrara, 44100 Ferrara, Italy.
  • Briscoe WJ; INFN, Sezione di Genova, 16146 Genova, Italy.
  • Brock J; Institute of Theoretical and Experimental Physics, Moscow, 117259, Russia.
  • Brooks WK; Fairfield University, Fairfield, Connecticut 06824, USA.
  • Burkert VD; Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
  • Cao F; The George Washington University, Washington, DC 20052, USA.
  • Carlin C; Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
  • Carman DS; Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile.
  • Celentano A; Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
  • Chatagnon P; University of Connecticut, Storrs, Connecticut 06269, USA.
  • Chetry T; Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
  • Ciullo G; Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
  • Cole PL; INFN, Sezione di Genova, 16146 Genova, Italy.
  • Contalbrigo M; Institut de Physique Nucléaire, IN2P3-CNRS, Université Paris-Sud, Université Paris-Saclay, F-91406 Orsay, France.
  • Cortes O; Ohio University, Athens, Ohio 45701, USA.
  • D'Angelo A; Università di Ferrara, 44121 Ferrara, Italy.
  • Dashyan N; INFN, Sezione di Ferrara, 44100 Ferrara, Italy.
  • De Vita R; Idaho State University, Pocatello, Idaho 83209, USA.
  • De Sanctis E; Lamar University, 4400 MLK Blvd, P.O. Box 10009, Beaumont, Texas 77710, USA.
  • Deur A; INFN, Sezione di Ferrara, 44100 Ferrara, Italy.
  • Diehl S; The George Washington University, Washington, DC 20052, USA.
  • Djalali C; INFN, Sezione di Roma Tor Vergata, 00133 Rome, Italy.
  • Dugger M; Università di Roma Tor Vergata, 00133 Rome, Italy.
  • Dupre R; Yerevan Physics Institute, 375036 Yerevan, Armenia.
  • Duran B; INFN, Sezione di Genova, 16146 Genova, Italy.
  • Egiyan H; INFN, Laboratori Nazionali di Frascati, 00044 Frascati, Italy.
  • Ehrhart M; Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
  • El Alaoui A; University of Connecticut, Storrs, Connecticut 06269, USA.
  • El Fassi L; Ohio University, Athens, Ohio 45701, USA.
  • Eugenio P; University of South Carolina, Columbia, South Carolina 29208, USA.
  • Fegan S; Arizona State University, Tempe, Arizona 85287-1504, USA.
  • Filippi A; Argonne National Laboratory, Argonne, Illinois 60439, USA.
Phys Rev Lett ; 122(16): 162301, 2019 Apr 26.
Article in En | MEDLINE | ID: mdl-31075002
First measurements of double-polarization observables in ω 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^{*}) resonances. In particular, contributions from new N^{*} resonances listed in the Review of Particle Properties are observed, which aid in reaching the goal of mapping out the nucleon resonance spectrum.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Phys Rev Lett Year: 2019 Document type: Article Affiliation country: Country of publication:
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Phys Rev Lett Year: 2019 Document type: Article Affiliation country: Country of publication: