Selected vector-meson decay-distributions in reactions of polarized photons with protons

Abstract

We develop a formalism for studying vector meson ($V$) photo-production at the proton ($p$) with polarized photons, $\vec{\gamma }p\to Vp$, through an analysis of the decay distribution in the channel $V\to {\pi }^0\gamma$. We show that this decay distribution differs noticeably from the distributions of purely hadronic decays, like $\varphi \to K^{+}{K}^{-}$, $\omega \to {\pi }^0{\pi }^{+}{\pi }^{-}$. Formulas for the decay distributions are presented which are suitable for data analysis and interpretation.

3 pages, 2 figures

References in corpus (2)

• Diffractive $\varphi$-meson photoproduction on proton near threshold
• Photoproduction of phi meson off deuteron near threshold

Cited by in corpus (3)

• Exclusive neutrino-production of a charmed vector meson and transversity gluon GPDs
• Polarization degrees of freedom in near-threshold photoproduction of omega mesons in the pi^0 gamma decay channel
• Angular Distributions, Polarization Observables, Spin Density Matrices and Statistical Tensors in Photoproduction of Two Pseudoscalar Mesons off a Nucleon