@article{ff8e58cf8cf64d58ab7adc1612189a88,
title = "Beam asymmetry ς for the photoproduction of η and η′ mesons at Eγ=8.8 GeV",
abstract = "We report on the measurement of the beam asymmetry ς for the reactions γ - p→pη and γ - p→pη′ from the GlueX experiment using an 8.2-8.8-GeV linearly polarized tagged photon beam incident on a liquid hydrogen target in Hall D at Jefferson Laboratory. These measurements are made as a function of momentum transfer -t with significantly higher statistical precision than our earlier η measurements and are the first measurements of η′ in this energy range. We compare the results to theoretical predictions based on t-channel quasiparticle exchange. We also compare the ratio of ςη to ςη′ to these models as this ratio is predicted to be sensitive to the amount of ss exchange in the production. We find that photoproduction of both η and η′ is dominated by natural parity exchange with little dependence on -t.",
author = "{The GlueX Collaboration} and S. Adhikari and A. Ali and M. Amaryan and A. Austregesilo and F. Barbosa and J. Barlow and A. Barnes and E. Barriga and R. Barsotti and Beattie, {T. D.} and Berdnikov, {V. V.} and T. Black and W. Boeglin and M. Boer and Briscoe, {W. J.} and T. Britton and Brooks, {W. K.} and Cannon, {B. E.} and N. Cao and E. Chudakov and S. Cole and O. Cortes and V. Crede and Dalton, {M. M.} and T. Daniels and A. Deur and S. Dobbs and A. Dolgolenko and R. Dotel and M. Dugger and R. Dzhygadlo and H. Egiyan and T. Erbora and A. Ernst and P. Eugenio and C. Fanelli and S. Fegan and Foda, {A. M.} and J. Foote and J. Frye and S. Furletov and L. Gan and A. Gasparian and N. Gevorgyan and C. Gleason and K. Goetzen and A. Goncalves and Goryachev, {V. S.} and L. Guo and Ritchie, {B. G.}",
note = "Publisher Copyright: {\textcopyright} 2019 American Physical Society.",
year = "2019",
month = nov,
day = "27",
doi = "10.1103/PhysRevC.100.052201",
language = "English (US)",
volume = "100",
journal = "Physical Review C",
issn = "2469-9985",
publisher = "American Physical Society",
number = "5",
}