{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.76745.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/1511149"}},{"@id":"https://doi.org/10.1103/PhysRevC.95.042201","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"GlueX Collaboration"},"creator":{"@type":"Organization","name":"GlueX Collaboration"},"datePublished":"2017","description":"We report measurements of the photon beam asymmetry $\\Sigma$ for the reactions $\\vec{\\gamma}p\\to p\\pi^0$ and $\\vec{\\gamma}p\\to p\\eta $ 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 $\\pi^0$ measurements and are the first $\\eta$ measurements in this energy regime. The results are compared with theoretical predictions based on $t$-channel, quasi-particle exchange and constrain the axial-vector component of the neutral meson production mechanism in these models.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.76745.v1/t1","@type":"Dataset","description":"Measurement of the beam asymmetry $\\Sigma$ for $\\pi^0$ photoproduction on the proton at $E_\\gamma = 9$ GeV. The uncorrelated systematic...","name":"Table 1"},{"@id":"https://doi.org/10.17182/hepdata.76745.v1/t2","@type":"Dataset","description":"Measurement of the beam asymmetry $\\Sigma$ for $\\eta$ photoproduction on the proton at $E_\\gamma = 9$ GeV. The uncorrelated systematic...","name":"Table 2"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins1511149?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/76745"}],"inLanguage":"en","name":"Measurement of the beam asymmetry $\\Sigma$ for $\\pi^0$ and $\\eta$ photoproduction on the proton at $E_\\gamma = 9$ GeV","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins1511149?version=1","version":1}