TY  - SER
AU  - Anassontzis,E.G.
AU  - Austregesilo,A.
AU  - Barbosa,F.
AU  - Barnes,A.
AU  - Beattie,T.D.
AU  - Bennett,D.W.
AU  - Berdnikov,V.V.
AU  - Black,T.
AU  - Boeglin,W.
AU  - Briscoe,W.J.
AU  - Brooks,W.K.
AU  - Cannon,B.E.
AU  - Chernyshov,O.
AU  - Chudakov,E.
AU  - Kuznetsov,I.
AU  - Al Ghoul,H.
AU  - Lyubovitskij,Valery E.
TI  - Measurement of the beam asymmetry Σ for π0 and η photoproduction on the proton at Eγ = 9GeV
KW  - фотонные пучки
KW  - нейтральные мезоны
KW  - фоторождение
KW  - GlueX
KW  - статьи в журналах
N1  - Библиогр.: 22 назв
N2  - We report measurements of the photon beam asymmetry  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
UR  - http://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000591809
ER  -