Measurement of the beam asymmetry Σ for π0 and η photoproduction on the proton at Eγ = 9GeV

Эндаумент фонд ТГУ!
Впиши своё имя в историю университета
- Сделать пожертвование -

Add to "Quick Collection"

Description	Size	Format
Measurement of the beam asymmetry Σ for π0 and η photoproduction on the proton at Eγ = 9GeV	364 KB	Adobe Acrobat PDF	Read	Download
DOI Доступ к ресурсу на сайте издателя			10.1103/PhysRevC.95.042201

Title: Measurement of the beam asymmetry Σ for π0 and η photoproduction on the proton at Eγ = 9GeV
Creator: Anassontzis, E. G.
|
Austregesilo, A.
|
Barbosa, F.
|
Barnes, A.
|
Beattie, T. D.
|
Bennett, D. W.
|
Berdnikov, V. V.
|
Black, T.
|
Boeglin, W.
|
Briscoe, W. J.
|
Brooks, W. K.
|
Cannon, B. E.
|
Chernyshov, O.
|
Chudakov, E.
|
Kuznetsov, I.
|
Al Ghoul, H.
|
Lyubovitskij, Valery E.
Date: 2017
DOI: 10.1103/PhysRevC.95.042201
Description: 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.