First Measurements of the Double-Polarization Observables F, P, and H in ω Photoproduction off Transversely Polarized Protons in the N∗ Resonance Region
Journal
Physical Review Letters
Date Issued
2019-04-23
Author(s)
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, William K.
Departamento de Física
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.
My Ahmed , El Alaoui
Centro Científico Tecnológico de Valparaíso CCTVAL USM
El Fassi, L.
Eugenio, P.
Fegan, S.
Filippi, A.
Fradi, A.
Gilfoyle, G. P.
Girod, F. X.
Golovatch, E.
Gothe, R. W.
Griffioen, K. A.
Guidal, M.
Guo, L.
Hafidi, K.
Hanretty, C.
Harrison, N.
Hattawy, M.
Hayward, T. B.
Heddle, D.
Hicks, K.
Holtrop, M.
Ilieva, Y.
Ireland, D. G.
Ishkhanov, B. S.
Isupov, E. L.
Jenkins, D.
Jo, H. S.
Johnston, S.
Joosten, S.
Kabir, M. L.
Keith, C. D.
Keller, D.
Khachatryan, G.
Khachatryan, M.
Khanal, A.
Khandaker, M.
Kim, A.
Kim, W.
Klein, F. J.
Kubarovsky, V.
Centro Científico Tecnológico de Valparaíso CCTVAL USM
Kunkel, M. C.
Lanza, L.
Lenisa, P.
Livingston, K.
Macgregor, I. J.D.
Marchand, D.
McKinnon, B.
Meekins, D. G.
Meyer, C. A.
Departamento de Física
Mokeev, V.
Montgomery, R. A.
Movsisyan, A.
Munoz Camacho, C.
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.
Subjects
Política de Privacidad 
