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相关论文: Dynamical CP Violation in Composite Higgs Models

200 篇论文

We proposed how spontaneous CP-violation can be generated in the simplest little Higgs model in this talk. Comparing with the original paper, both formalism and phenomenology are updated. The model is still alive facing the collider and…

高能物理 - 唯象学 · 物理学 2019-08-20 Ying-nan Mao

We consider spontaneous CP violation in the Next to Minimal Supersymmetric Standard Model (NMSSM), without the usual $Z_3$ discrete symmetry. CP violation can occur at tree level, raising a potential conflict with the experimental bounds on…

高能物理 - 唯象学 · 物理学 2007-05-23 A. T. Davies , C. D. Froggatt , A. Usai

We consider a particular two-Higgs-doublet model with spontaneous CP violation, where two neutral Higgses have no definite CP properties and the third one is CP-even. In this model, as the parameter $\theta$ of CP violation increases, the…

高能物理 - 唯象学 · 物理学 2007-05-23 I. Vendramin

We implement the mechanism of spontaneous CP violation in the 3-3-1 model with right-handed neutrinos and recognize their sources of CP violation. Our main result is that the mechanism works already in the minimal version of the model and…

高能物理 - 唯象学 · 物理学 2009-11-11 A. Doff , C. A. de S. Pires , P. S. Rodrigues da Silva

We give a pedagogical review of the theory of CP violation with emphasis on the implications of recent experimental results. The review includes: (i) A detailed description of how CP violation arises in the Standard Model and in its…

高能物理 - 唯象学 · 物理学 2007-05-23 Yosef Nir

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…

高能物理 - 唯象学 · 物理学 2010-02-11 S. W. Ham , Seong-a Shim , S. K. OH

We discuss CP-violation in a model with a real and a complex isospin triplet Higgs fields without introducing any symmetries except for the electroweak gauge symmetry. This corresponds to the minimal extension of the Higgs sector with the…

高能物理 - 唯象学 · 物理学 2023-06-16 Ting-Kuo Chen , Cheng-Wei Chiang , Kei Yagyu

We study the possibilities of spontaneous CP violation in the Next-to-Minimal Supersymmetric Standard Model with an extra singlet tadpole term in the scalar potential. We calculate the Higgs boson masses and couplings with radiative…

高能物理 - 唯象学 · 物理学 2009-11-10 Cyril Hugonie , Jorge C. Romao , Ana M. Teixeira

We study electroweak baryogenesis and electric dipole moments in the presence of the two leading-order, non-renormalizable operators in the Higgs sector of the MSSM. Significant qualitative and quantitative differences from MSSM…

高能物理 - 唯象学 · 物理学 2015-03-13 Kfir Blum , Cedric Delaunay , Marta Losada , Yosef Nir , Sean Tulin

We construct an extension of the supersymmetric standard model where both CP symmetry and R-parity are spontaneously broken. We study the electroweak symmetry breaking sector of the model and find minima consistent with the experimental…

高能物理 - 唯象学 · 物理学 2008-11-26 M. Frank , K. Huitu , T. Rüppell

The leading contributions to the electron (or muon) electric dipole moment due to CP violation in the charged Higgs sector are at the two-loop level. A careful analysis of the model-independent contribution is provided. We also consider…

高能物理 - 唯象学 · 物理学 2009-09-01 David Bowser-Chao , Darwin Chang , Wai-Yee Keung

CP violation in top physics is reviewed. The Standard Model has negligible effects, consequently CP violation searches involving the top quark may constitute the best way to look for physics beyond the Standard Model. Non-standard sources…

高能物理 - 唯象学 · 物理学 2009-09-25 David Atwood , Shaouly Bar-Shalom , Gad Eilam , Amarjit Soni

It is shown that the mechanism of spontaneous symmetry breaking provides not only a mechanism for giving mass to the bosons and the fermions, but also a mechanism for generating CP-phase of the bosons and the fermions. A two-Higgs doublet…

高能物理 - 唯象学 · 物理学 2008-02-03 Yue-Liang Wu

We study the explicit CP violation of the Higgs sector in the next--to--minimal supersymmetric model with a gauge singlet Higgs field. Our numerical predictions show that electric dipole moment of electron lies around the present…

高能物理 - 唯象学 · 物理学 2009-11-11 Muge Boz

If CP violation in the decays of neutral kaons is due to phases in the weak couplings of quarks, as encoded in the Cabibbo-Kobayashi-Maskawa (CKM) matrix, there are many other experimental consequences. Notable among these are CP-violating…

高能物理 - 唯象学 · 物理学 2009-09-25 J. Rosner

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…

高能物理 - 唯象学 · 物理学 2020-08-26 Shinya Kanemura , Mitsunori Kubota , Kei Yagyu

The possibility of observing CP violation in the decays of Higgs particles into top-quark, W- and Z-boson pairs induced by heavy Majorana neutrinos is discussed. In the context of minimal "see-saw" models with interfamily mixings, we find…

高能物理 - 唯象学 · 物理学 2007-05-23 A. Ilakovac , B. A. Kniehl , A. Pilaftsis

We review CP properties of the Two-Higgs-Doublet model. In particular, we show that spontaneous CP violation occurs in the parameter space on the border between regions allowing explicit CP violation and those where there is another…

高能物理 - 唯象学 · 物理学 2015-04-28 B. Grzadkowski , O. M. Ogreid , P. Osland

The Next-to-Minimal Supersymmetric extension of the Standard Model (NMSSM) features extra new sources for CP violation. In contrast to the MSSM CP violation can already occur at tree level in the Higgs sector. We investigate the range of…

高能物理 - 唯象学 · 物理学 2015-12-09 S. F. King , M. Muhlleitner , R. Nevzorov , K. Walz

Geometrical CP violation is a particular type of spontaneous CP violation in which the vacuum expectation values have phases which are calculable, i.e. stable against the variation of the free parameters of the scalar potential. Although…

高能物理 - 唯象学 · 物理学 2013-04-30 I. P. Ivanov , L. Lavoura