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)

Research output: Contribution to journalArticle

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 languageEnglish (US)
Article number162301
JournalPhysical Review Letters
Volume122
Issue number16
DOIs
StatePublished - Apr 23 2019

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photoproduction
protons
polarization
asymmetry
photons
acceptability
spectrometers
energy

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

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 journalArticle

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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 Michael 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 Barry Ritchie",
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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

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JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 16

M1 - 162301

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