Leading effect of CP violation with four generations

doi:10.1103/PhysRevD.82.036005

Authors

Hou, Wei-Shu;

Mao, Yao-Yuan;

Shen, Chia-Hsien

RefereedArticle

Abstract

In the standard model with a fourth generation of quarks, we study the relation between the Jarlskog invariants and the triangle areas in the 4×4 Cabibbo-Kobayashi-Maskawa matrix. To identify the leading effects that may probe the CP violation in processes involving quarks, we invoke small mass and small angle expansions, and show that these leading effects are enhanced considerably compared to the three-generation case by the large masses of fourth-generation quarks. We discuss the leading effect in several cases, in particular, the possibility of large CP violation in b→s processes, which echoes the heightened recent interest because of experimental hints.

Details

Publication

Physical Review D, vol. 82, Issue 3, id. 036005

Publication Date

August 2010

DOI

10.1103/PhysRevD.82.036005

10.48550/arXiv.1003.4361

arXiv

arXiv:1003.4361

Bibcode

2010PhRvD..82c6005H

Collection

physics

Keywords

11.30.Er

12.15.Ff

12.60.-i

Charge conjugation parity time reversal and other discrete symmetries

Quark and lepton masses and mixing

Models beyond the standard model

High Energy Physics - Phenomenology

E-Print Comment(s)

12 pages, no figure; Phys.Rev.D82:036005,2010; doi:10.1103/PhysRevD.82.036005

.css-mcpu91{font-size:var(--chakra-fontSizes-xl);} Leading effect of CP violation with four generations

Authors

Abstract

Details

Leading effect of CP violation with four generations