Flavor-alignment in an S_(3)-symmetric Higgs sector and its RG-behavior

作     者：Nabarun Chakrabarty Indrani Chakraborty Nabarun Chakrabarty;Indrani Chakraborty

作者机构：Department of PhysicsIndian Institute of TechnologyKanpur 208016India 

出 版 物：《Chinese Physics C》 (中国物理C（英文版）)

年 卷 期：2022年第46卷第12期

页      面：58-67页

核心收录：

学科分类：0709[理学-地质学] 07[理学] 0708[理学-地球物理学] 0804[工学-仪器科学与技术] 0827[工学-核科学与技术] 0703[理学-化学] 0704[理学-天文学] 070202[理学-粒子物理与原子核物理] 0702[理学-物理学] 

基　　金：support from DST,India,under Grant Number IFA19-PH237(INSPIRE Faculty Award) support from DST,India,under grant number IFA18-PH214(INSPIRE Faculty Award) 

主　　题：beyond the standard model extended Higgs sector flavor changing neutral current 

摘      要：A three Higgs-doublet model exhibiting S_(3)-symmetry can predict the observed pattern of quark masses and their mixings. However, the same symmetry also introduces potential flavor-changing neutral currents(FCNCs)at the tree level. In this study, we assume that the scalar potential contains appropriate soft S_(3)-breaking terms to maintain flexible choices of scalar masses. We identify the parameters in the Yukawa Lagrangian of the quark sector responsible for such FCNCs and constrain them using data from flavor physics observables, such as meson-decays and meson-mixings. We also validate the corresponding model parameter space via renormalization group evaluation.