Correlations between quark mass and flavor mixing hierarchies

被引：10
作者：
Fritzsch, Harald [1 ]
Xing, Zhi-zhong [2 ,3 ,4 ]
Zhang, Di [2 ,3 ]
机构：
[1] Ludwig Maximilians Univ Munchen, Phys Dept, D-80333 Munich, Germany
[2] Univ Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
[3] Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China
[4] Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China
来源：
NUCLEAR PHYSICS B | 2022年 / 974卷
基金：
中国国家自然科学基金;
关键词：
4-ZERO TEXTURE; CP-VIOLATION; MATRICES; SYMMETRIES;
D O I：
10.1016/j.nuclphysb.2021.115634
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
We calculate the quark flavor mixing matrix V based on the Hermitian quark mass matrices M-u and M-d with vanishing (1, 1), (1, 3) and (3, 1) entries. The popular leading-order prediction vertical bar V-ub/V-cb vertical bar similar or equal to root m(u)/m(c) is significantly modified, and the result agrees with the current experimental value. We find that behind the strong mass hierarchy of up-or down-type quarks is the weak texture hierarchy of M-u or M-d characterized by an approximate seesaw-like relation among its (2, 2), (2, 3) and (3, 3) elements. (C) 2021 The Authors. Published by Elsevier B.V.
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页数：18
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