Study of the radiative decay J/ψ → ηc + γ in light cone sum rules

At present, there are many experimental and theoretical results for J/ψ→ηc+γ process, while the results are inconsistent based on different methods and considerations. In this paper, the light cone sum rules method is used in studying the radiative decay J/ψ→ηc+γ. We give the transition form factor...

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Bibliographic Details
Main Authors: Song-Pei Guo, Yan-Jun Sun, Wei Hong, Qi Huang, Guo-Hua Zhao
Format: Article
Language:English
Published: Elsevier 2020-06-01
Series:Nuclear Physics B
Online Access:http://www.sciencedirect.com/science/article/pii/S0550321320301395