Unifying CP violations of quark and lepton sectors

Kim, Jihn E.; Nam, Soonkeon

doi:10.1140/epjc/s10052-015-3805-y

Cited by 10 publications

(23 citation statements)

References 56 publications

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“…The CKM phase is close to 90 degrees in the Kim-Seo (KS) parametrization [23] and the PMNS phase is −90 degrees (but with a large error bars) [24]. Even, there exists an attempt to unify these CP phases [25].…”

Section: Introductionmentioning

confidence: 96%

Theory of flavors: String compactification

Kim

2018

Phys. Rev. D

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We present a calculating method for the quark and lepton mixing angles. After a general discussion in field theoretic models, we present a working model from a string compactification through Z12−I orbifold compactification. It is beyond presenting just three families of the standard model but is the first example from string compactification successfully fitting to the observed data. Assuming that all Yukawa couplings from string compactification are real, we also comment on a relation between the CP phases in the Jarlskog determinants obtained from the CKM and PMNS matrices. The flipped SU(5) model leads to the doublet-triplet splitting and possible proton decay operators. It is shown that the vacuum expectation values can be tuned such that the proton lifetime is long enough. elements vanish,M w d (31) = C 2 (10 U )C 15 (10 T 0 4 )H d (5 T6 ) c σ 4 (1 T 0 4 )σ 4 (1 T 0 4 )σ 6 (1 T6 ) + c σ 4 (1 T 0 4 )σ 15 (1 T9 )σ 21 (1 T 0

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Section: Introductionmentioning

confidence: 96%

Theory of flavors: String compactification

Kim

2018

Phys. Rev. D

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“…[137] such that δ CKM is the phase in the CKM matrix itself, which may help finding out the needed texture. There exist a few attempts along this line [136,138,139].…”

Section: Discussionmentioning

confidence: 99%

Dark Energy, QCD Axion, and Trans-Planckian-Inflaton Decay Constant

Kim

2017

Universe

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Pseudoscalars appear frequently in particle spectra. They can be light if they appear as pseudo-Goldstone bosons from some spontaneously broken global symmetries with the decay constant f . Since any global symmetry is broken at least by quantum gravitational effects, all pseudoscalars are massive. The mass scale of a pseudoscalar is determined by the spontaneous symmetry breaking scale f of the corresponding global symmetry and the explicit breaking terms in the effective potential. The explicit breaking terms can arise from anomaly terms with some non-Abelian gauge groups among which the best-known example is the potential of the QCD axion. Even if there is no breaking terms from gauge anomalies, there can be explicit breaking terms in the potential in which case the leading term suppressed by f determines the pseudoscalar mass scale. If the breaking term is extremely small and the decay constant is trans-Planckian, the corresponding pseudoscalar can be a candidate for a quintessential axion. In the other extreme that the breaking scales are large, still the pseudo-Goldstone boson mass scales are in general smaller than the decay constants. In such a case, still the potential of the pseudo-Goldstone boson at the grand unification scale is sufficiently flat near the top of the potential that it can be a good candidate for an inflationary model. We review these ideas in the bosonic collective motion framework.

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“…(14), To build a model, leading to (17), one must find out the mass matrices M (ν) and M (l) with appropriate insertions of e ±iδKS . As suggested in [31], if we use the KS parametrization for the CKM matrix given in [20] and again the KS parametrization for the PMNS matrix [30] given in Eq. (17) and the same CP phase α appears in the CKM and PMNS phases, we expect the unitary triangles take the forms given in Fig.…”

Section: Diagonalization Of Mass Matrices and Mixing Angles In Tmentioning

confidence: 99%