Covariant tensor formalism for partial wave analyses of ψ decays into γB B

2004/03/12 by Sayipjamal Dulat, BoChao Liu, Dulat, Sayipjamal +5
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ph/0403136

13 pages,5 figures

arxiv created 2004/03/12 · arxiv updated 2009/12/01

Abstract

Recently BES2 collaboration observed an enhancement near the p p invariant mass spectrum. Using the covariant tensor formalism, here we provide theoretical formulae for the partial wave analysis (PWA) of the ψ radiative decay channels ψ→ γp p, γΛ Λ, γΣΣ, γΞ Ξ . By performing the Monte Carlo simulation, we give the angular distributions for the photon and proton in the process of J/ψ→ γp p, which may serve as a useful reference for the future PWA on these channels.

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