CKM matrix and FCNC suppression in SO(5)\times U(1) \times SU(3)SO(5)×U(1)×SU(3) gauge-Higgs unification
- NázevTitle
- CKM matrix and FCNC suppression in SO(5)\times U(1) \times SU(3)SO(5)×U(1)×SU(3) gauge-Higgs unificationCKM matrix and FCNC suppression in SO(5)\times U(1) \times SU(3)SO(5)×U(1)×SU(3) gauge-Higgs unification
- Druh výsledkuResult type
- Článek v časopiseJournal article
- AutořiAuthors
- S. Funatsu, H. Hatanaka, Y. Hosotani, Y. Orikasa, N. Yamatsu
- DOIDOI
- 10.1103/PhysRevD.101.055016
- Časopis / citaceJournal / citation
- Physical Review D. 2020, 101(055016), 1-20. ISSN 2470-0010.
- RokYear
- 2020
- JazykLanguage
- eng
- WoSWoS
- 000518956500007
- ScopusScopus
- 2-s2.0-85083496171
- RIVRIV
- RIV/68407700:21670/20:00343604!RIV21-MSM-21670___
- ProjektProject
- Inženýrské aplikace fyziky mikrosvětaEngineering applications of microworld physics
AbstraktAbstract
The Cabibbo-Kobayashi-Maskawa (CKM) mixing matrix and flavor-changing neutral currents (FCNCs) in the quark sector are examined in the grand unified theory inspired SO(5)×U(1)×SU(3) gauge-Higgs unification in which the 4D Higgs boson is identified with the Aharonov-Bohm phase in the fifth dimension. Gauge invariant brane interactions play an important role for the flavor mixing in the charged-current weak interactions. The CKM matrix is reproduced except that the up quark mass needs to be larger than the observed one. FCNCs are naturally suppressed as a consequence of the gauge invariance, with a factor of order 10-6. It is also shown that induced flavor-changing Yukawa couplings are extremely small.
The Cabibbo-Kobayashi-Maskawa (CKM) mixing matrix and flavor-changing neutral currents (FCNCs) in the quark sector are examined in the grand unified theory inspired SO(5)×U(1)×SU(3) gauge-Higgs unification in which the 4D Higgs boson is identified with the Aharonov-Bohm phase in the fifth dimension. Gauge invariant brane interactions play an important role for the flavor mixing in the charged-current weak interactions. The CKM matrix is reproduced except that the up quark mass needs to be larger than the observed one. FCNCs are naturally suppressed as a consequence of the gauge invariance, with a factor of order 10-6. It is also shown that induced flavor-changing Yukawa couplings are extremely small.