@article{3072479,
    title = "Measurement of the beam asymmetry Σ for π0 and η photoproduction on the proton at Eγ=9 GeV",
    author = "Al Ghoul, H. and Anassontzis, E.G. and Austregesilo, A. and Barbosa, F. and Barnes, A. and Beattie, T.D. and Bennett, D.W. and Berdnikov, V.V. and Black, T. and Boeglin, W. and Briscoe, W.J. and Brooks, W.K. and Cannon, B.E. and Chernyshov, O. and Chudakov, E. and Crede, V. and Dalton, M.M. and Deur, A. and Dobbs, S. and Dolgolenko, A. and Dugger, M. and Dzhygadlo, R. and Egiyan, H. and Eugenio, P. and Fanelli, C. and Foda, A.M. and Frye, J. and Furletov, S. and Gan, L. and Gasparian, A. and Gerasimov, A. and Gevorgyan, N. and Goetzen, K. and Goryachev, V.S. and Guo, L. and Hakobyan, H. and Hardin, J. and Henderson, A. and Huber, G.M. and Ireland, D.G. and Ito, M.M. and Jarvis, N.S. and Jones, R.T. and Kakoyan, V. and Kamel, M. and Klein, F.J. and Kliemt, R. and Kourkoumeli, C. and Kuleshov, S. and Kuznetsov, I. and Lara, M. and Larin, I. and Lawrence, D. and Levine, W.I. and Livingston, K. and Lolos, G.J. and Lyubovitskij, V. and Mack, D. and Mattione, P.T. and Matveev, V. and McCaughan, M. and McCracken, M. and McGinley, W. and McIntyre, J. and Mendez, R. and Meyer, C.A. and Miskimen, R. and Mitchell, R.E. and Mokaya, F. and Moriya, K. and Nerling, F. and Nigmatkulov, G. and Ochoa, N. and Ostrovidov, A.I. and Papandreou, Z. and Patsyuk, M. and Pedroni, R. and Pennington, M.R. and Pentchev, L. and Peters, K.J. and Pooser, E. and Pratt, B. and Qiang, Y. and Reinhold, J. and Ritchie, B.G. and Robison, L. and Romanov, D. and Salgado, C. and Schumacher, R.A. and Schwarz, C. and Schwiening, J. and Semenov, A.Y. and Semenova, I.A. and Seth, K.K. and Shepherd, M.R. and Smith, E.S. and Sober, D.I. and Somov, A. and Somov, S. and Soto, O. and Sparks, N. and Staib, M.J. and Stevens, J.R. and Strakovsky, I.I. and Subedi, A. and Tarasov, V. and Taylor, S. and Teymurazyan, A. and Tolstukhin, I. and Tomaradze, A. and Toro, A. and Tsaris, A. and Vasileiadis, G. and Vega, I. and Walford, N.K. and Werthmüller, D. and Whitlatch, T. and Williams, M. and Wolin, E. and Xiao, T. and Zarling, J. and Zhang, Z. and Zihlmann, B. and Mathieu, V. and Nys, J. and GlueX Collaboration",
    journal = "Physical Review C",
    year = "2017",
    volume = "95",
    number = "4",
    publisher = "American Physical Society",
    issn = "2469-9985, 2469-9993",
    doi = "10.1103/PhysRevC.95.042201",
    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. © 2017 American Physical Society."
}