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arXiv · 1609.03830

Exclusive photoproduction of a $\gamma\,\rho$ pair with a large invariant mass

R. Boussarie·B. Pire·L. Szymanowski·S. Wallon
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Abstract

Exclusive photoproduction of a $\gamma\,\rho$ pair in the kinematics where the pair has a large invariant mass and the final nucleon has a small transverse momentum is described in the collinear factorization framework. The scattering amplitude is calculated at leading order in $\alpha_s$ and the differential cross sections for the process where the $\rho-$meson is either longitudinally or transversely polarized are estimated in the kinematics of the JLab 12-GeV experiments.

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R. Boussarie, B. Pire, L. Szymanowski, S. Wallon. 2016-09-13. Exclusive photoproduction of a $\gamma\,\rho$ pair with a large invariant mass. https://doi.org/10.1007/jhep02(2017)054

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