First Measurements of the Double-Polarization Observables F, P, and H in ω Photoproduction off Transversely Polarized Protons in the N^{*} Resonance Region

P Roy¹, S Park¹, V Crede¹, A V Anisovich^{2

3}, E Klempt², V A Nikonov^{2

3}, A V Sarantsev^{2

3}, N C Wei^{4

5}, F Huang⁵, K Nakayama⁶, K P Adhikari⁷, S Adhikari⁸, G Angelini⁹, H Avakian¹⁰, L Barion¹¹, M Battaglieri¹², I Bedlinskiy¹³, A S Biselli¹⁴, S Boiarinov¹⁰, W J Briscoe⁹, J Brock¹⁰, W K Brooks¹⁵, V D Burkert¹⁰, F Cao¹⁶, C Carlin¹⁰, D S Carman¹⁰, A Celentano¹², P Chatagnon¹⁷, T Chetry¹⁸, G Ciullo^{19

11}, P L Cole^{20

21}, M Contalbrigo¹¹, O Cortes⁹, A D'Angelo^{22

23}, N Dashyan²⁴, R De Vita¹², E De Sanctis²⁵, A Deur¹⁰, S Diehl¹⁶, C Djalali^{18

26}, M Dugger²⁷, R Dupre^{28

17}, B Duran²⁹, H Egiyan^{30

10}, M Ehrhart¹⁷, A El Alaoui¹⁵, L El Fassi³¹, P Eugenio¹, S Fegan³², A Filippi³³, A Fradi¹⁷, G P Gilfoyle³⁴, F X Girod^{35

10}, E Golovatch³⁶, R W Gothe²⁶, K A Griffioen³⁷, M Guidal¹⁷, L Guo^{8

10}, K Hafidi²⁸, C Hanretty^{1

10}, N Harrison¹⁰, M Hattawy⁷, T B Hayward³⁷, D Heddle^{38

10}, K Hicks¹⁸, M Holtrop³⁰, Y Ilieva^{9

26}, D G Ireland³², B S Ishkhanov³⁶, E L Isupov³⁶, D Jenkins³⁹, H S Jo⁴⁰, S Johnston²⁸, S Joosten²⁹, M L Kabir³¹, C D Keith¹⁰, D Keller⁴¹, G Khachatryan²⁴, M Khachatryan⁷, A Khanal⁸, M Khandaker⁴², A Kim¹⁶, W Kim⁴⁰, F J Klein⁴³, V Kubarovsky¹⁰, S V Kuleshov^{13

15}, M C Kunkel⁴⁴, L Lanza²², P Lenisa¹¹, K Livingston³², I J D MacGregor³², D Marchand¹⁷, B McKinnon³², D G Meekins¹⁰, C A Meyer⁴⁵, T Mineeva¹⁵, V Mokeev^{36

10}, R A Montgomery³², A Movsisyan¹¹, C Munoz Camacho¹⁷, P Nadel-Turonski¹⁰, S Niccolai¹⁷, G Niculescu⁴⁶, M Osipenko¹², A I Ostrovidov¹, M Paolone^{26

29}, L L Pappalardo¹¹, R Paremuzyan^{30

24}, E Pasyuk¹⁰, D Payette⁷, W Phelps⁹, J Pierce⁴¹, O Pogorelko¹³, Y Prok^{38

7

41}, D Protopopescu³², B A Raue^{8

10}, M Ripani¹², D Riser¹⁶, B G Ritchie²⁷, A Rizzo^{22

23}, G Rosner³², F Sabatié³⁵, C Salgado⁴², R A Schumacher⁴⁵, M L Seely¹⁰, Y G Sharabian¹⁰, U Shrestha¹⁸, Iu Skorodumina^{36

26}, D Sokhan³², O Soto¹⁵, N Sparveris²⁹, I I Strakovsky⁹, S Strauch²⁶, M Taiuti⁴⁷, J A Tan⁴⁰, B Torayev⁷, N Tyler²⁶, M Ungaro^{16

10}, H Voskanyan²⁴, E Voutier¹⁷, N K Walford⁴³, R Wang¹⁷, D P Watts⁴⁸, X Wei¹⁰, M H Wood⁴⁹, N Zachariou^{9

48}, J Zhang^{7

41}, Z W Zhao^{50

26

41}; CLAS Collaboration

Affiliations

¹ Florida State University, Tallahassee, Florida 32306, USA.
² Helmholtz-Institut für Strahlen- und Kernphysik, Universität Bonn, 53115 Bonn, Germany.
³ NRC "Kurchatov Institute," PNPI, 188300, Gatchina, Russia.
⁴ Zhengzhou University, Zhengzhou, Henan 450001, China.
⁵ School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China.
⁶ University of Georgia, Athens, Georgia 30602, USA.
⁷ Old Dominion University, Norfolk, Virginia 23529, USA.
⁸ Florida International University, Miami, Florida 33199, USA.
⁹ The George Washington University, Washington, DC 20052, USA.
¹⁰ Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
¹¹ INFN, Sezione di Ferrara, 44100 Ferrara, Italy.
¹² INFN, Sezione di Genova, 16146 Genova, Italy.
¹³ Institute of Theoretical and Experimental Physics, Moscow, 117259, Russia.
¹⁴ Fairfield University, Fairfield, Connecticut 06824, USA.
¹⁵ Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile.
¹⁶ University of Connecticut, Storrs, Connecticut 06269, USA.
¹⁷ Institut de Physique Nucléaire, IN2P3-CNRS, Université Paris-Sud, Université Paris-Saclay, F-91406 Orsay, France.
¹⁸ Ohio University, Athens, Ohio 45701, USA.
¹⁹ Università di Ferrara, 44121 Ferrara, Italy.
²⁰ Idaho State University, Pocatello, Idaho 83209, USA.
²¹ Lamar University, 4400 MLK Blvd, P.O. Box 10009, Beaumont, Texas 77710, USA.
²² INFN, Sezione di Roma Tor Vergata, 00133 Rome, Italy.
²³ Università di Roma Tor Vergata, 00133 Rome, Italy.
²⁴ Yerevan Physics Institute, 375036 Yerevan, Armenia.
²⁵ INFN, Laboratori Nazionali di Frascati, 00044 Frascati, Italy.
²⁶ University of South Carolina, Columbia, South Carolina 29208, USA.
²⁷ Arizona State University, Tempe, Arizona 85287-1504, USA.
²⁸ Argonne National Laboratory, Argonne, Illinois 60439, USA.
²⁹ Temple University, Philadelphia, Pennsylvania 19122, USA.
³⁰ University of New Hampshire, Durham, New Hampshire 03824-3568, USA.
³¹ Mississippi State University, Mississippi State, Mississippi 39762-5167, USA.
³² University of Glasgow, Glasgow G12 8QQ, United Kingdom.
³³ INFN, Sezione di Torino, 10125 Torino, Italy.
³⁴ University of Richmond, Richmond, Virginia 23173, USA.
³⁵ IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France.
³⁶ Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119234 Moscow, Russia.
³⁷ College of William and Mary, Williamsburg, Virginia 23187-8795, USA.
³⁸ Christopher Newport University, Newport News, Virginia 23606, USA.
³⁹ Virginia Tech, Blacksburg, Virginia 24061-0435, USA.
⁴⁰ Kyungpook National University, Daegu 41566, Republic of Korea.
⁴¹ University of Virginia, Charlottesville, Virginia 22901, USA.
⁴² Norfolk State University, Norfolk, Virginia 23504, USA.
⁴³ Catholic University of America, Washington, D.C. 20064, USA.
⁴⁴ Institut für Kernphysik, 52425 Jülich, Germany.
⁴⁵ Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA.
⁴⁶ James Madison University, Harrisonburg, Virginia 22807, USA.
⁴⁷ Università di Genova, 16146 Genova, Italy.
⁴⁸ University of York, York YO10, United Kingdom.
⁴⁹ Canisius College, Buffalo, New York 14208, USA.
⁵⁰ Duke University, Durham, North Carolina 27708-0305, USA.

PMID: 31075002
DOI: 10.1103/PhysRevLett.122.162301

Free article

First Measurements of the Double-Polarization Observables F, P, and H in ω Photoproduction off Transversely Polarized Protons in the N^{*} Resonance Region

P Roy et al. Phys Rev Lett. 2019.

Free article

. 2019 Apr 26;122(16):162301.

doi: 10.1103/PhysRevLett.122.162301.

Authors

Affiliations

¹ Florida State University, Tallahassee, Florida 32306, USA.
² Helmholtz-Institut für Strahlen- und Kernphysik, Universität Bonn, 53115 Bonn, Germany.
³ NRC "Kurchatov Institute," PNPI, 188300, Gatchina, Russia.
⁴ Zhengzhou University, Zhengzhou, Henan 450001, China.
⁵ School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China.
⁶ University of Georgia, Athens, Georgia 30602, USA.
⁷ Old Dominion University, Norfolk, Virginia 23529, USA.
⁸ Florida International University, Miami, Florida 33199, USA.
⁹ The George Washington University, Washington, DC 20052, USA.
¹⁰ Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
¹¹ INFN, Sezione di Ferrara, 44100 Ferrara, Italy.
¹² INFN, Sezione di Genova, 16146 Genova, Italy.
¹³ Institute of Theoretical and Experimental Physics, Moscow, 117259, Russia.
¹⁴ Fairfield University, Fairfield, Connecticut 06824, USA.
¹⁵ Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile.
¹⁶ University of Connecticut, Storrs, Connecticut 06269, USA.
¹⁷ Institut de Physique Nucléaire, IN2P3-CNRS, Université Paris-Sud, Université Paris-Saclay, F-91406 Orsay, France.
¹⁸ Ohio University, Athens, Ohio 45701, USA.
¹⁹ Università di Ferrara, 44121 Ferrara, Italy.
²⁰ Idaho State University, Pocatello, Idaho 83209, USA.
²¹ Lamar University, 4400 MLK Blvd, P.O. Box 10009, Beaumont, Texas 77710, USA.
²² INFN, Sezione di Roma Tor Vergata, 00133 Rome, Italy.
²³ Università di Roma Tor Vergata, 00133 Rome, Italy.
²⁴ Yerevan Physics Institute, 375036 Yerevan, Armenia.
²⁵ INFN, Laboratori Nazionali di Frascati, 00044 Frascati, Italy.
²⁶ University of South Carolina, Columbia, South Carolina 29208, USA.
²⁷ Arizona State University, Tempe, Arizona 85287-1504, USA.
²⁸ Argonne National Laboratory, Argonne, Illinois 60439, USA.
²⁹ Temple University, Philadelphia, Pennsylvania 19122, USA.
³⁰ University of New Hampshire, Durham, New Hampshire 03824-3568, USA.
³¹ Mississippi State University, Mississippi State, Mississippi 39762-5167, USA.
³² University of Glasgow, Glasgow G12 8QQ, United Kingdom.
³³ INFN, Sezione di Torino, 10125 Torino, Italy.
³⁴ University of Richmond, Richmond, Virginia 23173, USA.
³⁵ IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France.
³⁶ Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119234 Moscow, Russia.
³⁷ College of William and Mary, Williamsburg, Virginia 23187-8795, USA.
³⁸ Christopher Newport University, Newport News, Virginia 23606, USA.
³⁹ Virginia Tech, Blacksburg, Virginia 24061-0435, USA.
⁴⁰ Kyungpook National University, Daegu 41566, Republic of Korea.
⁴¹ University of Virginia, Charlottesville, Virginia 22901, USA.
⁴² Norfolk State University, Norfolk, Virginia 23504, USA.
⁴³ Catholic University of America, Washington, D.C. 20064, USA.
⁴⁴ Institut für Kernphysik, 52425 Jülich, Germany.
⁴⁵ Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA.
⁴⁶ James Madison University, Harrisonburg, Virginia 22807, USA.
⁴⁷ Università di Genova, 16146 Genova, Italy.
⁴⁸ University of York, York YO10, United Kingdom.
⁴⁹ Canisius College, Buffalo, New York 14208, USA.
⁵⁰ Duke University, Durham, North Carolina 27708-0305, USA.

PMID: 31075002
DOI: 10.1103/PhysRevLett.122.162301

Abstract

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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First Measurements of the Double-Polarization Observables F, P, and H in ω Photoproduction off Transversely Polarized Protons in the N^{*} Resonance Region

Affiliations

First Measurements of the Double-Polarization Observables F, P, and H in ω Photoproduction off Transversely Polarized Protons in the N^{*} Resonance Region

Authors

Affiliations

Abstract

LinkOut - more resources

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