Three-loop QCD matching of the flavor-changing scalar current involving the heavy charm and bottom quark

Abstract We compute the matching coefficient between the quantum chromodynamics (QCD) and the non-relativistic QCD (NRQCD) for the flavor-changing scalar current involving the heavy charm and bottom quark, up to the three-loop order within the NRQCD factorization. For the first time, we obtain the a...

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Bibliographic Details
Main Authors: Wei Tao, Ruilin Zhu, Zhen-Jun Xiao
Format: Article
Language:English
Published: SpringerOpen 2023-04-01
Series:European Physical Journal C: Particles and Fields
Online Access:https://doi.org/10.1140/epjc/s10052-023-11442-w