Instanton effects on charmonium states

Ulugbek Yakhshiev, Hyun Chul Kim, Emiko Hiyama

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5 Citations (Scopus)


The instanton effects on the charmonium spectrum are discussed in the framework of the nonrelativistic potential model. The results from the constituent quark model without inclusion of instanton effects are compared with the results for the potential from the constituent quark model plus the contribution from the instanton liquid model. We consider two models with the corresponding instanton potentials and discuss their relevance to explanations of the origin of phenomenological parameters used in the nonrelativistic potential models. We also present the universal instanton potential in a parametrized form, which can be useful in practical calculations.

Original languageEnglish
Article number114036
JournalPhysical Review D
Issue number11
Publication statusPublished - Dec 1 2018

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)


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