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.
| Original language | English (US) |
|---|---|
| Article number | 162301 |
| Journal | Physical Review Letters |
| Volume | 122 |
| Issue number | 16 |
| DOIs | |
| State | Published - Apr 23 2019 |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
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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. / (CLAS Collaboration).
In: Physical Review Letters, Vol. 122, No. 16, 162301, 23.04.2019.Research output: Contribution to journal › Article
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TY - JOUR
T1 - First Measurements of the Double-Polarization Observables F, P, and H in ω Photoproduction off Transversely Polarized Protons in the N∗ Resonance Region
AU - (CLAS Collaboration)
AU - Roy, P.
AU - Park, S.
AU - Crede, V.
AU - Anisovich, A. V.
AU - Klempt, E.
AU - Nikonov, V. A.
AU - Sarantsev, A. V.
AU - Wei, N. C.
AU - Huang, F.
AU - Nakayama, K.
AU - Adhikari, K. P.
AU - Adhikari, S.
AU - Angelini, G.
AU - Avakian, H.
AU - Barion, L.
AU - Battaglieri, M.
AU - Bedlinskiy, I.
AU - Biselli, A. S.
AU - Boiarinov, S.
AU - Briscoe, W. J.
AU - Brock, J.
AU - Brooks, W. K.
AU - Burkert, V. D.
AU - Cao, F.
AU - Carlin, C.
AU - Carman, D. S.
AU - Celentano, A.
AU - Chatagnon, P.
AU - Chetry, T.
AU - Ciullo, G.
AU - Cole, P. L.
AU - Contalbrigo, M.
AU - Cortes, O.
AU - D'Angelo, A.
AU - Dashyan, N.
AU - De Vita, R.
AU - De Sanctis, E.
AU - Deur, A.
AU - Diehl, S.
AU - Djalali, C.
AU - Dugger, Michael
AU - Dupre, R.
AU - Duran, B.
AU - Egiyan, H.
AU - Ehrhart, M.
AU - El Alaoui, A.
AU - El Fassi, L.
AU - Eugenio, P.
AU - Fegan, S.
AU - Ritchie, Barry
PY - 2019/4/23
Y1 - 2019/4/23
N2 - 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.
AB - 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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U2 - 10.1103/PhysRevLett.122.162301
DO - 10.1103/PhysRevLett.122.162301
M3 - Article
C2 - 31075002
AN - SCOPUS:85065548180
VL - 122
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 16
M1 - 162301
ER -