Regular Article - Theoretical Physics

Rephasing invariance and permutation symmetry in flavor physics

¹ Department of Physics, Purdue University, West Lafayette, IN, 47907, USA
² Physics Group, CGE, Chang Gung University, Taoyuan, 33302, Taiwan

^* e-mail: schiu@mail.cgu.edu.tw

Received: 14 December 2019
Accepted: 12 February 2020
Published online: 4 March 2020

Abstract

With some modifications, the arguments for rephasing invariance can be used to establish permutation symmetry for the standard model. The laws of evolution of physical variables, which transform as tensors under permutation, are found to obey the symmetry, explicitly. We also propose to use a set of four mixing parameters, with unique properties, which may serve to characterize flavor mixing.