Correlations between quark mass and flavor mixing hierarchies

Fritzsch, Harald; Xing, Zhi-zhong und Zhang, Di (2022): Correlations between quark mass and flavor mixing hierarchies. In: Nuclear Physics B, Bd. 974, 115634

Abstract

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.

• Dokumententyp: Zeitschriftenartikel
• Fakultät: Physik
• Themengebiete: 500 Naturwissenschaften und Mathematik > 530 Physik
• ISSN: 0550-3213
• Sprache: Englisch