@article{7406b644a54d47b8a68719330dae0efd,
title = "Measurement of the beam asymmetry Σ for π0 and η photoproduction on the proton at Eγ=9 GeV",
abstract = "We report measurements of the photon beam asymmetry Σ for the reactions γ - p→pπ0 and γ - p→pη from the GlueX experiment using a 9 GeV linearly polarized, tagged photon beam incident on a liquid hydrogen target in Jefferson Lab's Hall D. The asymmetries, measured as a function of the proton momentum transfer, possess greater precision than previous π0 measurements and are the first η measurements in this energy regime. The results are compared with theoretical predictions based on t-channel, quasiparticle exchange and constrain the axial-vector component of the neutral meson production mechanism in these models.",
author = "\{GlueX Collaboration\} and \{Al Ghoul\}, H. and Anassontzis, \{E. G.\} and A. Austregesilo and F. Barbosa and A. Barnes and Beattie, \{T. D.\} and Bennett, \{D. W.\} and Berdnikov, \{V. V.\} and T. Black and W. Boeglin and Briscoe, \{W. J.\} and Brooks, \{W. K.\} and Cannon, \{B. E.\} and O. Chernyshov and E. Chudakov and V. Crede and Dalton, \{M. M.\} and A. Deur and S. Dobbs and A. Dolgolenko and M. Dugger and R. Dzhygadlo and H. Egiyan and P. Eugenio and C. Fanelli and Foda, \{A. M.\} and J. Frye and S. Furletov and L. Gan and A. Gasparian and A. Gerasimov and N. Gevorgyan and K. Goetzen and Goryachev, \{V. S.\} and L. Guo and H. Hakobyan and J. Hardin and A. Henderson and Huber, \{G. M.\} and Ireland, \{D. G.\} and Ito, \{M. M.\} and Jarvis, \{N. S.\} and Jones, \{R. T.\} and V. Kakoyan and M. Kamel and Klein, \{F. J.\} and R. Kliemt and C. Kourkoumeli and S. Kuleshov and I. Kuznetsov",
note = "Publisher Copyright: {\textcopyright} 2017 American Physical Society.",
year = "2017",
month = apr,
day = "24",
doi = "10.1103/PhysRevC.95.042201",
language = "English",
volume = "95",
journal = "Physical Review C",
issn = "2469-9985",
number = "4",
}