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    Measurement of the beam asymmetry Σ and the target asymmetry T in the photoproduction of ω mesons off the proton using CLAS at Jefferson Laboratory

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    1711.05176v3.pdf
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    Genre
    Pre-print
    Date
    2018-05-04
    Author
    Roy, P
    Akbar, Z
    Park, S
    Crede, V
    Anisovich, AV
    Denisenko, I
    Klempt, E
    Nikonov, VA
    Sarantsev, AV
    Adhikari, KP
    Adhikari, S
    Anefalos Pereira, S
    Ball, J
    Balossino, I
    Bashkanov, M
    Battaglieri, M
    Batourine, V
    Bedlinskiy, I
    Biselli, AS
    Boiarinov, S
    Briscoe, WJ
    Brock, J
    Brooks, WK
    Burkert, VD
    Carlin, C
    Carman, DS
    Celentano, A
    Charles, G
    Chetry, T
    Ciullo, G
    Clary, BA
    Cole, PL
    Contalbrigo, M
    D'Angelo, A
    Dashyan, N
    De Vita, R
    Deur, A
    Djalali, C
    Dugger, M
    Dupre, R
    El Alaoui, A
    El Fassi, L
    Elouadrhiri, L
    Eugenio, P
    Fedotov, G
    Fegan, S
    Filippi, A
    Fradi, A
    Gavalian, G
    Gevorgyan, N
    Gilfoyle, GP
    Giovanetti, KL
    Girod, FX
    Gleason, C
    Gohn, W
    Golovatch, E
    Gothe, RW
    Griffioen, KA
    Guidal, M
    Guo, L
    Hafidi, K
    Hakobyan, H
    Hanretty, C
    Hattawy, M
    Hicks, K
    Holtrop, M
    Ilieva, Y
    Ireland, DG
    Ishkhanov, BS
    Isupov, EL
    Jenkins, D
    Joo, K
    Joosten, S
    Keith, CD
    Keller, D
    Khachatryan, G
    Khandaker, M
    Kim, A
    Kim, W
    Klein, A
    Klein, FJ
    Kubarovsky, V
    Kuleshov, SV
    Lanza, L
    Lenisa, P
    Livingston, K
    Lu, HY
    MacGregor, IJD
    Markov, N
    Mayer, M
    McCracken, ME
    McKinnon, B
    Meekins, DG
    Meyer, CA
    Meziani, ZE
    Mineeva, T
    Mokeev, V
    Montgomery, RA
    Movsisyan, A
    Munoz Camacho, C
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    Subject
    nucl-ex
    nucl-ex
    hep-ex
    Permanent link to this record
    http://hdl.handle.net/20.500.12613/4669
    
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    DOI
    10.1103/PhysRevC.97.055202
    Abstract
    © 2018 American Physical Society. The photoproduction of ω mesons off the proton has been studied in the reaction γp→pω using the CEBAF Large Acceptance Spectrometer (CLAS) and the frozen-spin target in Hall B at the Thomas Jefferson National Accelerator Facility. For the first time, the target asymmetry T has been measured in photoproduction from the decay ω→π+π-π0, using a transversely polarized target with energies ranging from just above the reaction threshold up to 2.8 GeV. Significant nonzero values are observed for these asymmetries, reaching about 30-40% in the third-resonance region. New measurements for the photon-beam asymmetry Σ are also presented, which agree well with previous CLAS results and extend the world database up to 2.1 GeV. These data and additional ω photoproduction observables from CLAS were included in a partial-wave analysis within the Bonn-Gatchina framework. Significant contributions from s-channel resonance production were found in addition to t-channel exchange processes.
    Citation to related work
    American Physical Society (APS)
    Has part
    Physical Review C
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    For Americans with Disabilities Act (ADA) accommodation, including help with reading this content, please contact scholarshare@temple.edu
    ae974a485f413a2113503eed53cd6c53
    http://dx.doi.org/10.34944/dspace/4651
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