Yukawa interactions, flavor symmetry, and non-canonical Kähler potential. (30th April 2019)

• Record Type: Journal Article
• Authors: Kawamura, Yoshiharu
• Is Part Of: Progress of theoretical and experimental physics. Volume 2019:Number 4(2019)
• Publication Date: 2019-04-30
• Subjects: B40 -- B55 -- B57; Physics -- Periodicals; Mathematical physics -- Periodicals; 530.05
• DOI: 10.1093/ptep/ptz018
• Languages: English
• ISSNs: 2050-3911

Abstract

Abstract: We study the origin of fermion mass hierarchy and flavor mixing in the standard model, paying attention to flavor symmetries and fermion kinetic terms. There is a possibility that the hierarchical flavor structure of quarks and charged leptons originates from non-canonical types of fermion kinetic terms in the presence of flavor-symmetric Yukawa interactions. A flavor symmetry can be hidden in the form of non-unitary bases in the standard model. The structure of the Kähler potential could become a touchstone of new physics.