Meson production in $J/\psi$ decays and $J/\psi \to N\bar{N}\gamma$ process

Abstract

It is shown that an account for the final-state interaction of real or virtual nucleon and antinucleon produced in the processes $J/\psi \to p\bar{p}\gamma$, $\psi (2S)\to p\bar{p}\gamma$, $J/\psi \to p\bar{p}\omega$, and $J/\psi \to 3\left({\pi }^{+}{\pi }^{-}\right)\gamma$ near the threshold of $N\bar{N}$ pair production allows one to obtain self-consistent description of these processes. Predictions of our model are in good agreement with experimental data available. The proposed potential model also reproduces the corresponding partial cross sections of $p\bar{p}$ scattering.

arXiv comment5 pages, 2 figures

References in corpus (11)

• Observation of a near-threshold enhancement in th p pbar mass spectrum from radiative J/psi-->gamma p pbar decays
• Study of psi(2S) Decays to gamma p bar{p}, pi^0 p bar{p} and eta p bar{p} and Search for p bar{p} Threshold Enhancements
• Study of N* Production from J/Psi--> p pbar eta
• Study of Jψdecaying into ωp \bar p
• Partial wave analysis of J/psi to p pbar pi0
• Origin of the structures observed in $e^{+}{e}^{-}$ annihilation into multipion states around the $\bar{p}p$ threshold
• Real and virtual $N\bar{N}$ pair production near the threshold
• $N\bar{N}$ production in $e^{+}{e}^{-}$ annihilation near the threshold revisited
• Interaction of real and virtual $p\bar{p}$ pairs in $J/\psi \to p\bar{p}\gamma (\rho ,\omega )$ decays
• Angular distributions in $J/\psi \to p\bar{p}{\pi }^0(\eta )$ decays
• Coupled channels and production of near-threshold $B^{(\ast )}{\bar{B}}^{(\ast )}$ resonances in $e^{+}{e}^{-}$ annihilation