Regular Article - Theoretical Physics
Analysis of the decays ψ′ → J/ψπ + π − and η′c → η c π + π − with the heavy-quark symmetry
Department of Physics, North China Electric Power University, 071003, Baoding, P.R.C.
Accepted: 18 July 2011
Published online: 11 August 2011
In this article, we study the decays ψ′ → J/ψπ + π − and η′c → η c π + π − by taking into account the chiral symmetry breaking effects, the final-state interactions and the heavy-quark symmetry. We can confront the predictions of the η′c → η c π + π − decay width and differential decay width with the experimental data in the future, and obtain powerful constraints on the chiral breaking effects and the final-state interactions, and test the heavy-quark symmetry.
© SIF, Springer-Verlag Berlin Heidelberg, 2011