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)

doi:10.1103/PhysRevLett.122.162301

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)

Neutron Instrument Technologies

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12 Scopus citations

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
Article number	162301
Journal	Physical Review Letters
Volume	122
Issue number	16
DOIs	https://doi.org/10.1103/PhysRevLett.122.162301
State	Published - Apr 23 2019

Funding

The authors gratefully acknowledge the excellent support of the technical staff at Jefferson Lab and all participating institutions. This research is based on work supported by the U.S. Department of Energy, Office of Science, Office of Nuclear Physics, under Contract No. DE-AC05-06OR23177. The group at Florida State University acknowledges additional support from the U.S. Department of Energy, Office of Science, Office of Nuclear Physics, under Contract No. DE-FG02-92ER40735. This work was also supported by the U.S. National Science Foundation, the State Committee of Science of Republic of Armenia, the Chilean Comisión Nacional de Investigación Cientifica y Tecnológica, the Italian Istituto Nazionale di Fisica Nucleare, the French Centre National de la Recherche Scientifique, the French Commissariat a lEnergie Atomique, the Scottish Universities Physics Alliance (SUPA), the United Kingdom Science and Technology Facilities Council (STFC), the National Research Foundation of Korea, the Deutsche Forschungsgemeinschaft (SFB/TR110), the Russian Science Foundation under Grant No. 16-12-10267, and the National Natural Science Foundation of China under Grants No. 11475181 and No. 11635009.

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10.1103/PhysRevLett.122.162301

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@article{8d6f60af0c2b4b72a11f55106cb2aaca,

title = "First Measurements of the Double-Polarization Observables F, P, and H in ω Photoproduction off Transversely Polarized Protons in the N∗ Resonance Region",

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.",

author = "\{(CLAS Collaboration)\} and P. Roy and S. Park and V. Crede and Anisovich, \{A. V.\} and E. Klempt and Nikonov, \{V. A.\} and Sarantsev, \{A. V.\} and Wei, \{N. C.\} and F. Huang and K. Nakayama and Adhikari, \{K. P.\} and S. Adhikari and G. Angelini and H. Avakian and L. Barion and M. Battaglieri and I. Bedlinskiy and Biselli, \{A. S.\} and S. Boiarinov and Briscoe, \{W. J.\} and J. Brock and Brooks, \{W. K.\} and Burkert, \{V. D.\} and F. Cao and C. Carlin and Carman, \{D. S.\} and A. Celentano and P. Chatagnon and T. Chetry and G. Ciullo and Cole, \{P. L.\} and M. Contalbrigo and O. Cortes and A. D'Angelo and N. Dashyan and \{De Vita\}, R. and \{De Sanctis\}, E. and A. Deur and S. Diehl and C. Djalali and M. Dugger and R. Dupre and B. Duran and H. Egiyan and M. Ehrhart and \{El Alaoui\}, A. and \{El Fassi\}, L. and P. Eugenio and S. Fegan and J. Pierce",

note = "Publisher Copyright: {\textcopyright} 2019 American Physical Society.",

year = "2019",

month = apr,

day = "23",

doi = "10.1103/PhysRevLett.122.162301",

language = "English",

volume = "122",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "16",

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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, M.

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 - Pierce, J.

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.

UR - https://www.scopus.com/pages/publications/85065548180

U2 - 10.1103/PhysRevLett.122.162301

DO - 10.1103/PhysRevLett.122.162301

M3 - Article

C2 - 31075002

AN - SCOPUS:85065548180

SN - 0031-9007

VL - 122

JO - Physical Review Letters

JF - Physical Review Letters

IS - 16

M1 - 162301

ER -

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

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