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We discuss the effect of CP violation in the aligned scenario of the general two-Higgs-doublet model, in which the Higgs potential and the Yukawa interaction provide additional CP-violating phases. An alignment is imposed to the Yukawa…

High Energy Physics - Phenomenology · Physics 2020-08-26 Shinya Kanemura , Mitsunori Kubota , Kei Yagyu

We investigate a scale-invariant general two-Higgs-doublet model with explicit CP violation. Using the Gildener-Weinberg method, we analyze the Higgs mass spectrum and couplings at the one-loop level, focusing on CP violation originating…

High Energy Physics - Phenomenology · Physics 2025-09-19 Nguyen Dang Bao Nhi , Eibun Senaha

We study the Higgs-boson mass spectrum of the minimal supersymmetric standard model, in which the tree-level CP invariance of the Higgs potential is broken explicitly by loop effects of soft-CP-violating Yukawa interactions related to…

High Energy Physics - Phenomenology · Physics 2009-10-07 Apostolos Pilaftsis , Carlos E. M. Wagner

We investigate a potentially large CP violating asymmetry in the neutral Higgs boson decay into a heavy quark pair or a $W^+$--$W^-$ pair. The source of the CP nonconservation is in the Yukawa couplings of the Higgs boson which can contain…

High Energy Physics - Phenomenology · Physics 2009-09-01 D. Chang , W. -Y. Keung

We study Higgs boson decays in the minimal supersymmetric standard model where the tree-level CP invariance of the Higgs potential is explicitly broken by loop effects of soft CP-violating Yukawa interactions related to scalar quarks of the…

High Energy Physics - Phenomenology · Physics 2008-11-26 S. Y. Choi , Jae Sik Lee

In the supersymmetric standard model which is not minimal, the Higgs potential does not conserve CP symmetry generally. Assuming that there exists an SU(2)-triplet Higgs field, we discuss resultant CP-violating effects on the Higgs bosons.…

High Energy Physics - Phenomenology · Physics 2016-06-01 Noriyuki Oshimo

In the minimal supersymmetric Standard Model, the heaviest CP-even Higgs boson H and the CP-odd Higgs scalar A are predicted to be almost degenerate in mass at the tree level, for the wide kinematic range M_A > 2M_Z and \tan\beta \ge 2.…

High Energy Physics - Phenomenology · Physics 2011-01-27 Apostolos Pilaftsis

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

Extending previous results obtained in the effective-potential approach, we derive analytic expressions for the pole masses of the charged and neutral Higgs bosons in the minimal supersymmetric standard model (MSSM) with explicit CP…

High Energy Physics - Phenomenology · Physics 2008-11-26 M. Carena , J. Ellis , A. Pilaftsis , C. E. M. Wagner

CP violation induced by resonant transitions of a scalar to a pseudoscalar intermediate state is analyzed within a gauge-invariant resummation approach based on the pinch technique. Necessary conditions governing the resonant enhancement of…

High Energy Physics - Phenomenology · Physics 2007-05-23 Apostolos Pilaftsis

Extended Higgs sectors offer rich opportunities for various forms of CP-violation. Here, we describe a new form of CP-conservation and discuss its consequences. We give a concrete example of a three-Higgs-doublet model dubbed CP4-3HDM with…

High Energy Physics - Phenomenology · Physics 2017-09-13 I. P. Ivanov

Most studies of Higgs sector CP violation focus on the detection of CP-violating neutral Higgs-fermion Yukawa couplings, which yield P-odd, CP-violating phenomena. There is some literature on purely bosonic signatures of Higgs sector CP…

High Energy Physics - Phenomenology · Physics 2022-12-02 Howard E. Haber , Venus Keus , Rui Santos

We investigate the possibility of detecting CP--odd angular correlations in the various decay modes of the neutral Higgs boson including the modes of a $ZZ$ pair, a $W^+W^-$ pair, or a heavy quark pair. It is a natural way to probe the CP…

High Energy Physics - Phenomenology · Physics 2009-09-01 Darwin Chang , Wai-Yee Keung , Ivan Phillips

In two-Higgs doublet models (and particularly in the MSSM) the CP-even (H) and CP-odd (A) neutral scalars are nearly degenerate in mass, and their s-channel production would lead to nearly overlapping resonances. CP-violating effects may…

High Energy Physics - Phenomenology · Physics 2008-11-26 J. Bernabeu , D. Binosi , J. Papavassiliou

We consider the possibility of looking for CP-mixing effects in two-Higgs doublet models (and particularly in the MSSM) by studying the lineshape of the CP-even (H) and CP-odd (A) neutral scalars. In most cases H and A come quite degenerate…

High Energy Physics - Phenomenology · Physics 2009-11-11 J. Bernabeu , D. Binosi , J. Papavassiliou

Nonstandard CP violation in the Higgs sector can play an essential role in electroweak baryogenesis. We calculate the full two-loop matching conditions of the standard model, with Higgs Yukawa couplings to light quarks modified to include…

High Energy Physics - Phenomenology · Physics 2019-02-20 Joachim Brod , Dimitrios Skodras

We study CP violation in a multi-Higgs doublet model based on a $S_3 \times Z_3$ horizontal symmetry where CKM phase is not the principal source of CP violation. We consider two mechanisms for CP violation in this model: a) CP violation due…

High Energy Physics - Phenomenology · Physics 2010-11-01 N. G. Deshpande , Xiao-Gang He

We briefly comment on the question of spontaneous CP violation for several models of weak interactions. We focus on one of the minimal extensions of the Standard Model where spontaneous CP violation is viable,the next-to-minimal…

High Energy Physics - Phenomenology · Physics 2007-05-23 Ana M. Teixeira

We study CP violation in a multi-Higgs doublet model based on a $S_3 \times Z_3$ horizontal symmetry. We consider two mechanisms for CP violation in this model: a) CP violation due to complex Yukawa couplings; and b) CP violation due to…

High Energy Physics - Phenomenology · Physics 2010-11-01 N. G. Deshpande , Xiao-Gang He

We analyze CP-violating effects in both Electric Dipole Moment (EDM) measurements and future analyses at the Large Hadron Collider (LHC) assuming a Two-Higgs-Doublet Model (2HDM) with "soft" CP-violation. Our analysis of EDMs and current…

High Energy Physics - Phenomenology · Physics 2020-10-27 Kingman Cheung , Adil Jueid , Ying-nan Mao , Stefano Moretti
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