| Issue |
EPL
Volume 143, Number 4, August 2023
|
|
|---|---|---|
| Article Number | 44001 | |
| Number of page(s) | 5 | |
| Section | Nuclear and plasma physics, particles and fields | |
| DOI | https://doi.org/10.1209/0295-5075/acedcd | |
| Published online | 18 August 2023 | |
CKM and PMNS mixing matrixes from SO(2) flavor symmetry
1 School of Physics, Xi'an Jiaotong University - Xi'an, 710049, China
2 Institute of Theoretical Physics, Xi'an Jiaotong University - Xi'an, 710049, China
(a) E-mail: hepzhy@mail.xjtu.edu.cn (corresponding author)
Received: 12 May 2023
Accepted: 7 August 2023
The relation between quark masses and CKM mixing is studied based on an approximate chiral 
flavor symmetry of quark mass matrix. In mass hierarchy limit, the mass ratio effect on CKM mixing is suppressed, which separates mass hierarchy and quark flavor mixing into two independent problems. We show that CKM mixing is dominated by two left-handed 
symmetries while mass hierarchy only provides slight corrections. The same mixing structure is generalized to lepton sector with extended Dirac neutrinos. The common flavor mixing provides a novel comprehension on the relation between quark CKM mixing and lepton PMNS mixing.
© 2023 EPLA
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