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Related papers: CP violation and the H-A lineshape

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We study the possibility of spontaneous CP violation in the next-to-minimal supersymmetric standard model (NMSSM). It is shown that the spontaneous CP violation is induced by the radiative effects of top, stop, bottom and sbottom…

High Energy Physics - Phenomenology · Physics 2014-11-17 Naoyuki Haba , Masahisa Matsuda , Morimitsu Tanimoto

We study the general Higgs-weak boson coupling with CP-violation via the process e+e- -> f \bar f h. We categorize the signal channels by sub-processes Zh production and ZZ fusion and construct four CP asymmetries by exploiting polarized…

High Energy Physics - Phenomenology · Physics 2014-11-17 T. Han , J. Jiang

We discuss the most general formulation of the Two-Higgs doublet model, which incorporates flavor changing neutral scalar interactions (FCNSI) and CP violation (CPV) from several sources. CP violation can arise either from Yukawa terms or…

High Energy Physics - Phenomenology · Physics 2011-02-08 J. L. Diaz-Cruz , A. Diaz-Furlong , J. H. Montes de Oca Y

We study the conditions under which the CP violation in the quark mixing matrix can leak into the scalar potential of the real two-Higgs-doublet model (2HDM) via divergent radiative corrections, thereby spoiling the renormalizability of the…

High Energy Physics - Phenomenology · Physics 2024-03-27 Carlos Henrique de Lima , Heather E. Logan

We extend to the highly degenerate case a recent approach for analyzing the sources of CP violation in baryogenesis models with quasi-degenerate neutrinos. In this approach an expansion of the resummed propagator around the poles is plugged…

High Energy Physics - Phenomenology · Physics 2021-11-24 J. Racker

CP violation in supersymmetric models is reviewd with focus on explicit CP violation in the MSSM. The topics covered in particular are CP-mixing in the Higgs sector and its measurement at the LHC, CP-odd observables in the gaugino sector at…

High Energy Physics - Phenomenology · Physics 2007-10-29 S. Kraml

We explore the CP violation in the charged Higgs production associated with a top quark at the LHC in the MSSM. The supersymmetric phases of gaugino masses and trilinear $A$ terms lead to a CP violating asymmetry of the cross section in the…

High Energy Physics - Phenomenology · Physics 2008-11-26 Kang Young Lee , Dong-Won Jung , H. S. Song

We calculate all the branching ratios and direct CP violations of $B \to PV$ decays in a most general two-Higgs-doublet model with spontaneous CP violation. As the model has rich CP-violating sources, it is shown that the new physics…

High Energy Physics - Phenomenology · Physics 2008-11-26 Y. L. Wu , C. Zhuang

We review CP violation in various extensions of the electroweak sector of the Standard Model. A particular emphasis is put on supersymmetric models. We describe the two CP problems of supersymmetry, concerning $d_N$ and $\epsilon_K$. We…

High Energy Physics - Phenomenology · Physics 2016-11-03 Yuval Grossman , Yosef Nir , Riccardo Rattazzi

The CP-violating effects to the subprocess $gg\to H^+H^-$ is studied in the mSUGRA scenario at the CERN LHC, by taking into account the experimental bounds of electron and neutron EDM's. The CP violation effects in this process are related…

High Energy Physics - Phenomenology · Physics 2007-05-23 Yi Jiang , Wen-Gan Ma , Liang Han , Hong-Sheng Hou

We discuss the testability of CP-violating phases at future lepton colliders for the scenario which satisfies electric dipole moment data by destructive interferences among several phases. We consider the general but aligned two Higgs…

High Energy Physics - Phenomenology · Physics 2021-05-05 Shinya Kanemura , Mitsunori Kubota , Kei Yagyu

We find a large CP violation effect within the Two-Higgs-Doublet-Model for the reaction $e^+e^-\to t\bar{t}H^0$ at future linear colliders. The CP-asymmetry arises already at the tree level as a result of interference between diagrams with…

High Energy Physics - Phenomenology · Physics 2009-10-28 S. Bar-Shalom , D. Atwood , G. Eilam , R. R. Mendel , A. Soni

We discuss the formulation of the general two-Higgs doublet model type III, which incorporates flavor changing neutral scalar interactions (FCNSI) and CP violation from several sources. CP violation can arise either from Yukawa terms or…

High Energy Physics - Phenomenology · Physics 2012-04-02 L. Diaz-Cruz , A. Diaz-Furlong , R. Gaitan-Lozano , J. H. Montes de Oca Y

The explicit CP violation in the MSSM radiatively induces a finite unremovable alignment between the Higgs doublets. This additinal phase can be as large as the original CP phases in certain portions of the MSSM parameter space. Considering…

High Energy Physics - Phenomenology · Physics 2009-10-31 D. A. Demir

We investigate the effect on the sphaleron in the two Higgs doublet electroweak theory of including CP violation in the Higgs potential. To have better control over the relation between the sphaleron energy and the physical quantities in…

High Energy Physics - Phenomenology · Physics 2016-08-25 Jackie Grant , Mark Hindmarsh

We study the possibility to test CP invariance in the $W^+W^-$ production via photon fusion at NLC. The predictions of the CP violation effects are made within two Higgs doublet extensions of the minimal standard model, where CP violation…

High Energy Physics - Phenomenology · Physics 2010-11-01 J. P. Ma , B. H. J. McKellar

Based on the weakly-coupled two-Higgs-doublet model with spontaneous CP-violation (named Lee model) and the mechanism to generate the correlation between smallness of CP-violation and lightness of scalar mass, as we proposed earlier, we…

High Energy Physics - Phenomenology · Physics 2016-12-21 Ying-nan Mao , Shou-hua Zhu

We study the differential branching ratio, forward-backward asymmetry, CP-violating asymmetry, CP-violating asymmetry in the forward-backward asymmetry and polarization asymmetries of the final lepton in the B-> X_d \ell^+\ell^- decays in…

High Energy Physics - Phenomenology · Physics 2007-05-23 H. Acar , G. Turan

Recent evidence for a CP violating asymmetry in the semileptonic decays of B_s mesons cannot be accommodated within the Standard Model. Such an asymmetry can be explained by new physics contributions to Delta B=2 components of either the…

High Energy Physics - Phenomenology · Physics 2011-02-02 Yang Bai , Ann E. Nelson

The possibility of explicit CP violation is studied in a supersymmetric model proposed by Dine, Seiberg, and Thomas, with two effective dimension-five operators. The explicit CP violation may be triggered by complex phases in the…

High Energy Physics - Phenomenology · Physics 2010-02-11 S. W. Ham , Seong-a Shim , S. K. OH
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