D0 − $ {\overline {\text{D}}^0} $ mixing in gauge-Higgs unification

Adachi, Yuki; Kurahashi, Nobuaki; Lim, C. S.; Maru, Nobuhito

doi:10.1007/jhep01(2012)047

Cited by 18 publications

(6 citation statements)

References 39 publications

(63 reference statements)

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“…With these parameters fixed, wave functions of quarks and leptons are determined. In the present paper, we mostly ignore the flavor mixing in the quark and lepton gauge couplings [14,[82][83][84][85][86][87][88]. It has been shown that the Cabibbo-Kobayashi-Maskawa (CKM) mixing matrix can be incorporated in GHU with naturally suppressed FCNCs (flavor changing neutral currents) [14].…”

Section: A Parameter Setsmentioning

confidence: 99%

Fermion pair production at e−e+ linear collider experiments in GUT inspired gauge-Higgs unification

Funatsu

Hatanaka²,

Hosotani

et al. 2020

Phys. Rev. D

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Fermion pair production at e − e þ linear collider experiments with polarized e − and e þ beams is examined in the GUT inspired SOð5Þ × Uð1Þ × SUð3Þ gauge-Higgs unification. There arises large parity violation in the couplings of leptons and quarks to Kaluza-Klein (KK) excited neutral vector bosons Z 0 s, which leads to distinctive polarization dependence in cross sections, forward-backward asymmetries, leftright asymmetries, and left-right forward-backward asymmetries in various processes. Those effects are detectable even for the KK mass scale up to about 15 TeV at future e − e þ linear collider experiments with energies 250 GeV to 1 TeV.

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Section: A Parameter Setsmentioning

confidence: 99%

Fermion pair production at e−e+ linear collider experiments in GUT inspired gauge-Higgs unification

Funatsu

Hatanaka²,

Hosotani

et al. 2020

Phys. Rev. D

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“…∆F = 2 processes provide some of the most stringent constraints on NP generalizations of the SM. Several phenomenological analyses of ∆F = 2 processes have been performed in the last years, both for specific models and in model-independent frameworks [29,30,31,32,33,34,35,36,37,38,39]. A generalization of the Unitarity Triangle (UT) analysis, which allows for NP effects by including the most significant flavor constraints on NP available at the time was performed in Ref.…”

Section: Model-independent Constraints On ∆B = Operators and Np Scalementioning

confidence: 99%

B-physics from Nf = 2 tmQCD: the Standard Model and beyond

Carrasco

Ciuchini

Dimopoulos

et al. 2014

J. High Energ. Phys.

112

160

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We present a lattice QCD computation of the b-quark mass, the B and B_s decay constants, the B-mixing bag parameters for the full four-fermion operator basis as well as determinations for \xi and f_{Bq}\sqrt{B_i^{(q)}} extrapolated to the continuum limit and to the physical pion mass. We used N_f = 2 twisted mass Wilson fermions at four values of the lattice spacing with pion masses ranging from 280 to 500 MeV. Extrapolation in the heavy quark mass from the charm to the bottom quark region has been carried out on ratios of physical quantities computed at nearby quark masses, exploiting the fact that they have an exactly known infinite mass limit. Our results are m_b(m_b, \overline{\rm{MS}})=4.29(12) GeV, f_{Bs}=228(8) MeV, f_{B}=189(8) MeV and f_{Bs}/f_B=1.206(24). Moreover with our results for the bag-parameters we find \xi=1.225(31), B_1^{(s)}/B_1^{(d)}=1.01(2), f_{Bd}\sqrt{\hat{B}_{1}^{(d)}} = 216(10) MeV and f_{Bs}\sqrt{\hat{B}_{1}^{(s)}} = 262(10) MeV. We also computed the bag parameters for the complete basis of the four-fermion operators which are required in beyond the SM theories. By using these results for the bag parameters we are able to provide a refined Unitarity Triangle analysis in the presence of New Physics, improving the bounds coming from B_{(s)}-\bar B_{(s)} mixing

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“…[110]. Also, a mixing matrix in the quark sector, the Cabibbo-Kobayashi-Maskawa (CKM) mixing matrix [111,112], is introduced by brane interaction terms [77,[113][114][115][116]. We will leave further discussions for future studies.…”

Section: Summary and Discussionmentioning

confidence: 99%

Special grand unification

Yamatsu

2017

Progress of Theoretical and Experimental Physics

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We discuss new-type grand unified theories based on grand unified groups broken to their special subgroups as well as their regular subgroups. In the framework, when we construct four-dimensional (4D) chiral gauge theories, i.e., the Standard Model (SM), 4D gauge anomaly cancellation restricts the minimal number of generations of the 4D SM Weyl fermions. We show that in a six-dimensional (6D) SU (16) gauge theory on M 4 × T 2 /Z 2 one generation of the SM fermions can be embedded into a 6D bulk Weyl fermion. For the model including three chiral generations of the SM fermions, the 6D and 4D gauge anomalies on the bulk and fixed points are canceled out without exotic 4D chiral fermions. * Electronic address: yamatsu@cc.kyoto-su.ac.jp

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D0 − $ {\overline {\text{D}}^0} $ mixing in gauge-Higgs unification

Cited by 18 publications

References 39 publications

Fermion pair production at e−e+ linear collider experiments in GUT inspired gauge-Higgs unification

Fermion pair production at e−e+ linear collider experiments in GUT inspired gauge-Higgs unification

B-physics from Nf = 2 tmQCD: the Standard Model and beyond

Special grand unification

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