spontaneous CP violation
نویسنده
چکیده
منابع مشابه
On distinguishing the direct and spontaneous CP violation in 2HDM
The most general Two Higgs Doublet Model (2HDM) allows both for the explicit and the spontaneous CP violation in the scalar sector. Here we discuss CP violation in terms of basisindependent quantities and show how using two different sets of known CP-odd weak-basis invariants one can distinguish between CP conservation, explicit CP violation and spontaneous CP violation. The special case of CP ...
متن کاملar X iv : h ep - p h / 01 05 28 5 v 1 2 7 M ay 2 00 1 CP violation and modular symmetries
(Dated: April 8, 2008) We reconsider the origin of CP violation in fundamental theory. Existing string models of spontaneous CP violation make ambiguous predictions, due to the arbitrariness of CP transformation and the apparent non-invariance of the results under duality. We find an unambiguous modular CP invariance condition, applicable to predictive models of spontaneous CP violation, which ...
متن کاملSpontaneous CP Violation in the Next-to-Minimal Supersymmetric Standard Model Revisited
We re-examine spontaneous CP violation at the tree level in the context of the next-to-minimal supersymmetric standard model (NMSSM) with two Higgs doublets and a gauge singlet field. We analyse the most general Higgs potential without a discrete Z3 symmetry, and derive an upper bound on the mass of the lightest neutral Higgs boson consistent with present experimental data. We investigate, in p...
متن کاملSpontaneous CP violation model with flavor symmetry in large extra dimensions
We construct the minimal SUSY model that causes spontaneous CP violation with an abelian flavor symmetry in the context of the large extra dimensions and show that various physical scales can be easily unified. We also realize the realistic size of the CP violation and the small masses of the neutrinos. The strong CP problem can be solved by the axion scenario and the axion can be made invisibl...
متن کاملSpontaneous CP Violation in Large Extra Dimensions
We show that in the context of large extra dimensions enough CP violation can be obtained from the spontaneous breaking in a simple non-SUSY model, which is usually considered not to cause the spontaneous CP violation. We estimate ǫK in our scenario to be of order 10 −3 consistent with the experimental value. We also propose a modification to the see-saw mechanism and axion scenario to match wi...
متن کاملProbing Spontaneous CP-Violation in Supersymmetric Models via B-Decays
We study implications of spontaneous CP-violation in minimal susy models for CP-asymmetries in rare B, B̄-decays. In particular, we estimate characteristic values of the angles of the unitarity triangle and show that sizeable CP-violating effects result from B − B̄ mixing only. Significant deviations from the SM predictions are pointed out.
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