Muon Pair Production in Radiative Decays of Heavy Quarkonia

TL;DR

This paper investigates muon pair production in specific radiative decays of heavy quarkonia, providing numerical branching fractions and kinematic distributions to enhance understanding of these processes.

Contribution

It offers new numerical data on branching fractions and kinematic distributions for muon pair production in heavy quarkonia radiative decays.

Findings

Branching fractions for $ ext{chi}_{cJ} o J/ ext{psi}\mu ext{mu}$ and $ ext{chi}_{bJ} o ext{Upsilon}\mu ext{mu}$ calculated.

Distributions over various kinematic variables provided.

Results aid in understanding heavy quarkonium decay mechanisms.

Abstract

Muon pair production in exclusive radiative decays $\chi_{cJ}\to J/\psi \mu\mu$, $\chi_{bJ}\to\Upsilon\mu\mu$ are considered. We present numerical values of the branching fractions and distributions over various kinematical variables.