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相关论文: Spontaneous CP violation in Supersymmetric theorie…

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Relativistic many-body methods at different levels of approximations are employed to gain insights into the passage of the electron correlations from lower to higher levels in the accurate determination of the electric dipole polarizability…

原子物理 · 物理学 2015-03-18 Yashpal Singh , B. K. Sahoo

We study baryogenesis at the electroweak phase transition of the universe within the framework of the supersymmetric standard model (SSM) based on N=1 supergravity. This model contains a new source of CP violation in the mass-squared…

高能物理 - 唯象学 · 物理学 2009-10-30 Mayumi Aoki , Akio Sugamoto , Noriyuki Oshimo

We study a rate asymmetry in the inclusive decay $\Bsgamma$, assuming the supersymmetric standard model based on N=1 supergravity. A complex coefficient $A$ for scalar-trilinear couplings is the source of CP violation, which is contained in…

高能物理 - 唯象学 · 物理学 2009-10-31 Mayumi Aoki , Gi-Chol Cho , Noriyuki Oshimo

At finite temperatures around the electroweak phase transition, the thermodynamics of the MSSM can be described by a three-dimensional two Higgs doublet effective theory. This effective theory has a phase where CP is spontaneously violated.…

高能物理 - 格点 · 物理学 2015-06-25 M. Laine , K. Rummukainen

We investigate the sensitivity of the next generation of flavor-based low-energy experiments to probe the supersymmetric parameter space in the context of the phenomenological MSSM (pMSSM), and examine the complementarity with direct…

高能物理 - 唯象学 · 物理学 2016-02-24 Joshua Berger , Matthew W. Cahill-Rowley , Diptimoy Ghosh , JoAnne L. Hewett , Ahmed Ismail , Thomas G. Rizzo

In the N-B-LSSM, we calculate the electric dipole moments (EDMs) of lepton and neutron at the one loop level via the Mass Insertion Approximation (MIA). In the Standard Model (SM), charge parity (CP) violation originates only from the…

高能物理 - 唯象学 · 物理学 2026-03-17 Shuang Di , Wei-Hang Zhang , Rong-Zhi Sun , Xing-Xing Dong , Guo-Zhu Ning , Shu-Min Zhao

The status of CP violation and the CKM matrix is reviewed. Direct CP violation in B decay has been established and the measurement of sin(2beta) in \psi K modes reached 5% accuracy. I discuss the implications of these, and of the possible…

高能物理 - 唯象学 · 物理学 2014-11-17 Zoltan Ligeti

It is well known that supersymmetric models allow new sources for CP violation that arise from soft supersymmetry breaking terms. If unsuppressed, these new CP-violating phases would give too large a neutron electric dipole moment. We…

高能物理 - 唯象学 · 物理学 2015-06-25 Kiwoon Choi

Simply based on CP arguments, we argue against a Standard Model explanation of the baryon asymmetry of the universe in the presence of a first order phase transition. A CP-asymmetry is found in the reflection coefficients of quarks hitting…

高能物理 - 唯象学 · 物理学 2008-11-26 M. B. Gavela , P. Hernández , J. Orloff , O. Pène

Loop corrections for physics beyond the Standard Model are computed. DWe discuss the influence of new physics on CP-violating observables. Assuming the standard model gives a correct description of tree level processes, we show how a…

高能物理 - 唯象学 · 物理学 2007-05-23 Daniel Wyler

In the near future, we will have the first significant experimental measurements of CP violation in B decays. These measurements will easily test crucial questions such as whether the Standard Model Kobayashi-Maskawa phase plays a dominant…

高能物理 - 唯象学 · 物理学 2007-05-23 Yosef Nir

In the minimal supersymmetric standard model (MSSM) with complex parameters, supersymmetric loop effects can lead to \emph{CP} violation. We calculate the rate asymmetries of decays of charginos into the lightest neutralino and a $W$ boson…

高能物理 - 唯象学 · 物理学 2009-11-07 Wei Min Yang , Dong Sheng Du

We study the CP violation effects from two types of neutrino mass matrices with (i) $(M_\nu)_{ee}=0$, and (ii) $(M_\nu)_{ee}=(M_\nu)_{e\mu}=0$, which can be realized by the high dimensional lepton number violating operators $\bar…

高能物理 - 唯象学 · 物理学 2016-01-20 Chao-Qiang Geng , Da Huang , Lu-Hsing Tsai

We analyze possible interpretations of the recent LHCb evidence for CP violation in D meson decays in terms of physics beyond the Standard Model. On general grounds, models in which the primary source of flavor violation is linked to the…

高能物理 - 唯象学 · 物理学 2015-06-04 Gian Francesco Giudice , Gino Isidori , Paride Paradisi

We constructed a four-Higgs-doublet model (4HDM) invariant under D_5 symmetry and investigated its complete neutral vacuum structure in detail. Assuming explicit CP conservation in the scalar potential, we examined whether CP symmetry can…

高能物理 - 唯象学 · 物理学 2026-05-29 Dong-Ping Fu , Michihisa Takeuchi

We study the predictions for the direct CP violation parameter epsilon'/epsilon in a class of string-inspired model with non-universal soft A-terms. We show that the non-universality of the A-terms plays an important rule in enhancing the…

高能物理 - 唯象学 · 物理学 2007-05-23 S. Khalil

On general grounds based on quantum field theory the decay amplitude for $\Sigma^0 \to \Lambda \gamma$ consists of a parity conserving magnetic and a parity violating electric dipole transition moment. Because of the subsequent…

高能物理 - 唯象学 · 物理学 2018-12-05 Shankar Sunil Nair , Elisabetta Perotti , Stefan Leupold

In this Snowmass whitepaper, we describe the impact of ongoing and proposed intensity frontier experiments on the parameter space of the Minimally Supersymmetric Standard Model (MSSM). We extend a set of phenomenological MSSM (pMSSM) models…

高能物理 - 唯象学 · 物理学 2013-10-01 Joshua Berger , Matthew W. Cahill-Rowley , Diptimoy Ghosh , JoAnne L. Hewett , Ahmed Ismail , Thomas G. Rizzo

We analyze CP violation in supersymmetric extensions of the Standard Model with heavy scalar fermions of the first two generations. Neglecting intergenerational mixing in the sfemion mass matrices and thus considering only chargino, charged…

高能物理 - 唯象学 · 物理学 2009-10-31 D. A. Demir , A. Masiero , O. Vives

Measurements of CP--violating observables in neutrino oscillation experiments have been studied in the literature as a way to determine the CP--violating phase in the mixing matrix for leptons. Here we show that such observables also probe…

高能物理 - 唯象学 · 物理学 2010-05-28 M. C. Gonzalez-Garcia , Y. Grossman , A. Gusso , Y. Nir
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