MAXIMALLY SYMMETRIC MINIMAL UNIFICATION MODEL <font>SO</font>(32) WITH THREE FAMILIES IN TEN-DIMENSIONAL SPACETIME

Wu, Yonggang

doi:10.1142/s0217732307022591

Cited by 3 publications

(2 citation statements)

References 41 publications

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“…There are several papers [41][42][43][44][45][46][47][48][49][50][51][52][53] discussing discrete symmetries in higher dimensional spaces in several contexts. Authors discuss mostly only the parity symmetry, some of them the charge conjugation and very rare all the three symmetries.…”

Section: Jhep04(2014)165mentioning

confidence: 99%

Discrete symmetries in the Kaluza-Klein theories

Borštnik

Nielsen²

2014

J. High Energ. Phys.

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In theories of the Kaluza-Klein kind there are spins or total angular moments in higher dimensions which manifest as charges in the observable d = (3 + 1). The charge conjugation requirement, if following the prescription in (3 + 1), would transform any particle state out of the Dirac sea into the hole in the Dirac sea, which manifests as an anti-particle having all the spin degrees of freedom in d, except S 03 , the same as the corresponding particle state. This is in contradiction with what we observe for the anti-particle. In this paper we redefine the discrete symmetries so that we stay within the subgroups of the starting group of symmetries, while we require that the angular moments in higher dimensions manifest as charges in d = (3 + 1). We pay attention on spaces with even d.

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Section: Jhep04(2014)165mentioning

confidence: 99%

Discrete symmetries in the Kaluza-Klein theories

Borštnik

Nielsen²

2014

J. High Energ. Phys.

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“…For those reasons, it was motivated to consider the one Higgs bi-doublet LR model with general CP violation [38,39,40] instead of spontaneous CP violation. An alternative consideration for spontaneous P and CP violation is to introduce the concept of mirror particles [41,42], recently, a maximally symmetric model [43,44] was constructed along this line by considering mirror quarks and leptons.…”

Section: Introductionmentioning

confidence: 99%

Two Higgs bi-doublet left-right model with spontaneous P and CP violation

Zhou

2008

Sci. China Ser. G-Phys. Mech. Astron.

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A left-right symmetric model with two Higgs bi-doublet is shown to be a consistent model for both spontaneous P and CP violation. The flavor changing neutral currents can be suppressed by the mechanism of approximate global U(1) family symmetry. The constraints from neural K meson mass difference Δm K are calculated and it is demonstrated that a right-handed gauge boson W 2 contribution in box-diagrams with mass well below 1 TeV is allowed due to a cancelation caused by a light-charged Higgs boson with a mass range of 150-300 GeV. The W 2 contribution to ε K can be suppressed from an appropriate choice of additional CP phases appearing in the right-handed Cabbibo-Kobayashi-Maskawa matrix. The model is also found to be fully consistent with B 0 mass difference Δm B and the mixing induced CP violation sin2β J/ψ , which is usually difficult for the model with only one Higgs bi-doublet. The new physics beyond the standard model can be directly searched at the colliders LHC and ILC. left-right symmetry, spontaneous P and CP violation, two Higgs bi-doublets, new physicsSince the discovery of parity (P) violation fifty years ago [1,2] , it has been realized that both symmetry and asymmetry play important roles in particle physics. Later on, charge-conjugation-parity (CP) violation was also discovered in kaon decays [3] . The electroweak standard model was established based on the left-handed symmetry SU(2) L and has been well described by the gauge symmetry SU(2) L ×U(1) Y [4][5][6] . Since then, one of the important issues in particle physics has been concerned with the origin of P and CP violations, as well as the smallness of flavor changing neutral currents (FCNCs). Its solution requires physics beyond the standard model.The investigation of explicit CP violation in the standard model led to the prediction for the existence of three generation quarks, so that a single Kobayashi-Maskawa CP phase [7] can be introduced to characterize the CP-violating mechanism in the standard model. Such a simple

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A Two Higgs Bi-Doublet Left-Right Model With Spontaneous Cp Violation

Zhou

2008

Int. J. Mod. Phys. A

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We discuss a left-right symmetric model with two Higgs bi-doublet and spontaneous P and CP violation. The flavor changing neutral currents is suppressed by assuming approximate global U (1) family symmetry. We calculate the constraints from neural K meson mass difference ∆m K and demonstrate that a right-handed gauge boson W 2 contribution in box-diagrams with mass around 600 GeV is allowed due to a negative interference with a light charged Higgs boson around 150 ∼ 300 GeV. The W 2 contribution to ǫ K is suppressed from appropriate choice of additional CP phases appearing in the right-handed Cabbibo-Kobayashi-Maskawa(CKM) matrix. The model is found fully consistent with B 0 mass difference and the mixing-induced CP asymmetry measurements.PACS numbers: 12.60. Fr;13.25.Hw;11.30.Hv; Since the discovery of parity violation fifty years ago 1 , the study of symmetry and symmetry breaking has played a central role in particle physics. With the hypothesis that parity is a good symmetry at high energy scale, a minimal left-right symmetric model was proposed based on the gauge group SU (2) L × SU (2) R × U (1) B−L 2 with one Higgs bi-doublet. In such a model, parity violation is implemented through spontaneous symmetry breaking of the right-handed gauge sector. It is natural to require that in the left-right model, CP violation is also a consequence of spontaneous symmetry breaking. However, a spontaneous CPviolating left-right model with only one Higgs bi-doublet is severely constrained 3 by low energy phenomenology as it generates too much flavor changing neutral current(FCNC). For instance, the neutral kaon mass difference ∆m K requires that the right-handed gauge bosons must be very heavy above 2 TeV and the lightest neutral Higgs boson must be above 10 TeV to suppress FCNC; the predicted CKM matrix elements do not coincide with the B factory measurements; and the the condition for the spontaneous CP violation requires an unnatural fine tuning of the Higgs potential.Motivated by the general two-Higgs-doublet model(2HDM) as a model for spon-1

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MAXIMALLY SYMMETRIC MINIMAL UNIFICATION MODEL SO(32) WITH THREE FAMILIES IN TEN-DIMENSIONAL SPACETIME

Cited by 3 publications

References 41 publications

Discrete symmetries in the Kaluza-Klein theories

Discrete symmetries in the Kaluza-Klein theories

Two Higgs bi-doublet left-right model with spontaneous P and CP violation

A Two Higgs Bi-Doublet Left-Right Model With Spontaneous Cp Violation

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