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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.

Authors :
Roy P
Park S
Crede V
Anisovich AV
Klempt E
Nikonov VA
Sarantsev AV
Wei NC
Huang F
Nakayama K
Adhikari KP
Adhikari S
Angelini G
Avakian H
Barion L
Battaglieri M
Bedlinskiy I
Biselli AS
Boiarinov S
Briscoe WJ
Brock J
Brooks WK
Burkert VD
Cao F
Carlin C
Carman DS
Celentano A
Chatagnon P
Chetry T
Ciullo G
Cole PL
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
Fradi A
Gilfoyle GP
Girod FX
Golovatch E
Gothe RW
Griffioen KA
Guidal M
Guo L
Hafidi K
Hanretty C
Harrison N
Hattawy M
Hayward TB
Heddle D
Hicks K
Holtrop M
Ilieva Y
Ireland DG
Ishkhanov BS
Isupov EL
Jenkins D
Jo HS
Johnston S
Joosten S
Kabir ML
Keith CD
Keller D
Khachatryan G
Khachatryan M
Khanal A
Khandaker M
Kim A
Kim W
Klein FJ
Kubarovsky V
Kuleshov SV
Kunkel MC
Lanza L
Lenisa P
Livingston K
MacGregor IJD
Marchand D
McKinnon B
Meekins DG
Meyer CA
Mineeva T
Mokeev V
Montgomery RA
Movsisyan A
Munoz Camacho C
Nadel-Turonski P
Niccolai S
Niculescu G
Osipenko M
Ostrovidov AI
Paolone M
Pappalardo LL
Paremuzyan R
Pasyuk E
Payette D
Phelps W
Pierce J
Pogorelko O
Prok Y
Protopopescu D
Raue BA
Ripani M
Riser D
Ritchie BG
Rizzo A
Rosner G
Sabatié F
Salgado C
Schumacher RA
Seely ML
Sharabian YG
Shrestha U
Skorodumina I
Sokhan D
Soto O
Sparveris N
Strakovsky II
Strauch S
Taiuti M
Tan JA
Torayev B
Tyler N
Ungaro M
Voskanyan H
Voutier E
Walford NK
Wang R
Watts DP
Wei X
Wood MH
Zachariou N
Zhang J
Zhao ZW
Source :
Physical review letters [Phys Rev Lett] 2019 Apr 26; Vol. 122 (16), pp. 162301.
Publication Year :
2019

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.

Details

Language :
English
ISSN :
1079-7114
Volume :
122
Issue :
16
Database :
MEDLINE
Journal :
Physical review letters
Publication Type :
Academic Journal
Accession number :
31075002
Full Text :
https://doi.org/10.1103/PhysRevLett.122.162301