On the $η$ and $η’$ Photoproduction Beam Asymmetry at High Energies
Mathieu, V.
2017

Abstract

We show that, in the Regge limit, beam asymmetries in $η$ and $η’$ photoproduction are sensitive to hidden strangeness components. Under reasonable assumptions about the couplings we estimate the contribution of the ϕ Regge pole, which is expected to be the dominant hidden strangeness contribution. The ratio of the asymmetries in $η’$ and $η$ production is estimated to be close to unity in the forward region 0 < $-t$ / GeV$^2$ ≤ 1 at the photon energy E$_{lab}$ = 9 GeV , relevant for the upcoming measurements at Jefferson Lab.

Details

Title On the $η$ and $η’$ Photoproduction Beam Asymmetry at High Energies
Author Mathieu, V.
Publication Date Nov 10 2017
Date Submitted Aug 10 2018
DOI https://doi.org/10.1016/j.physletb.2017.09.081
Pagination 362-367
Published in Physics Letters B
Volume B774
External Resources https://doi.org/10.1016/j.physletb.2017.09.081

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