English
Related papers

Related papers: Radiative CP Phases in Supergravity Theories

200 papers

We show that the gaugino and higgsino sectors of supersymmetric theories can naturally acquire observable CP violation through radiative effects which originate from large CP-violating trilinear couplings of the Higgs bosons to the…

High Energy Physics - Phenomenology · Physics 2009-10-31 Apostolos Pilaftsis

SUSY CP problem in the gauge mediation supersymmetry breaking model is reconsidered. We pay particular attention to two sources of CP violating phases whose effects were not seriously studied before; one is the effect of the breaking of the…

High Energy Physics - Phenomenology · Physics 2011-06-30 Takeo Moroi , Norimi Yokozaki

We discuss the feasibility of spontaneous CP violation being induced by radiative corrections in 2HDM's, emphasizing on a consistent treatment at 1-loop level. Specifically, we analyze the cases of gaugino/higgsino effect on MSSM, and a new…

High Energy Physics - Phenomenology · Physics 2009-10-30 Otto C. W. Kong , Feng-Li Lin

We discuss the feasibility of spontaneous CP violation being induced by radiative corrections in 2HDM's. Specifically, we analyze the cases of gaugino/higgsino effect on MSSM, and a new model with an extra exotic quark doublet. The new…

High Energy Physics - Phenomenology · Physics 2009-10-31 Otto C. W. Kong , Feng-Li Lin

Decays into neutralinos and charginos are among the most accessible supersymmetric decay modes of Higgs particles in most supersymmetric extensions of the Standard Model. In the presence of explicitly CP--violating phases in the soft…

High Energy Physics - Phenomenology · Physics 2009-01-07 S. Y. Choi , Manuel Drees , Jae Sik Lee , J. Song

The supersymmetric CP problem is studied within superstring-motivated extensions of the MSSM with an additional U(1)' gauge symmetry broken at the TeV scale. This class of models offers an attractive solution to the mu problem of the MSSM,…

High Energy Physics - Phenomenology · Physics 2014-11-17 D. A. Demir , L. L. Everett

We explore the parameter space of the type-II two-Higgs-doublet model with softly broken Z2 symmetry, allowing for CP violation in the scalar potential. Imposing theory-motivated and experimentally-driven constraints, we show that as the…

High Energy Physics - Phenomenology · Physics 2022-08-16 Mariana Frank , Eric Gyabeng Fuakye , Manuel Toharia

We consider supersymmetric extensions of the standard model with two pairs of Higgs doublets. We study the possibility of spontaneous $CP$ violation in these scenarios and present a model where the origin of $CP$ violation is soft, with all…

High Energy Physics - Phenomenology · Physics 2016-09-01 Manuel Masip , Andrija Rasin

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

I rebuild a conventional two-Higgs doublet model by relaxing the spontaneous CP violation and considering approximate global U(1) family symmetries. So that the domain-wall problem does not explicitly arise at the weak scale, but CP…

High Energy Physics - Phenomenology · Physics 2008-02-03 Yue-Liang Wu

We have analyzed the electric dipole moment and the Higgs mass constraints on the supersymmetric model which offers dynamical solutions to the \mu and strong CP problems. The trilinear coupling phases, and \tan\beta-|\mu| are strongly…

High Energy Physics - Phenomenology · Physics 2009-11-10 Muge Boz

In the CP-violating Minimal Supersymmetric Standard Model, we study the pair production of neutralinos at center-of-mass energies around the heavy neutral Higgs boson resonances. For longitudinally polarized muon beams, we analyze CP…

High Energy Physics - Phenomenology · Physics 2009-01-06 Herbi K. Dreiner , Olaf Kittel , Federico von der Pahlen

CP violation by soft supersymmetry-breaking terms in orbifold compactifications is investigated. We include the universal part of the moduli-dependent threshold corrections in the construction of the non-perturbative effective potential due…

High Energy Physics - Theory · Physics 2008-11-26 D. Bailin , G. V. Kraniotis , A. Love

Split supersymmetry is characterized by relatively light chargino and neutralino sector and very heavy sfermion sector. We study the consequence of CP violation in this scenario by evaluating two-loop contributions to electric dipole…

High Energy Physics - Phenomenology · Physics 2014-11-18 N. G. Deshpande , J. Jiang

It is shown that the new sources of CP violation can be generated in the models with more than one extra dimensions. In the supersymmetric models on the space-time $M^4\times T^2/Z_2$, where the radius moduli have auxiliary vacuum…

High Energy Physics - Phenomenology · Physics 2008-11-26 Chao-Shang Huang , Tianjun Li , Liao Wei , Qi-Shu Yan

Possible CP violation in supersymmetric (SUSY) extensions of the Standard Model (SM) is discussed. The consequences of CP violating phases in the gaugino masses, trilinear soft supersymmetry-breaking terms and the `mu' parameter are…

High Energy Physics - Phenomenology · Physics 2009-10-31 I. Hinchliffe , N. Kersting

In this work, we adress the phenomenological consequences of explicit CP violation on direct Higgs-boson searches at high energy colliders. Having a restricted parameter space, we concentrate on the recently proposed gluino-axion model, and…

High Energy Physics - Phenomenology · Physics 2014-11-17 Muge Boz

Effects of CP violation on the supersymmetric electroweak correction to the $\rho$ parameter are investigated. To avoid the EDM constraints, we require that arg$(\mu)<10^{-2}$ and the non-universal trilinear couplings $A_f=(0,0,A_0)$ and…

High Energy Physics - Phenomenology · Physics 2011-01-27 Sin Kyu Kang , Jung Dae Kim

The complete analysis of the CP violation in the process $\gamma \gamma \to t \bar{t}$ in frame of the Minimal Supersymmetric Model(MSSM) is presented. The CP-odd observables for describing the CP violating effects in polarized and…

High Energy Physics - Phenomenology · Physics 2008-11-26 Zhou Mian-Lai , Ma Wen-Gan , Han Liang , Jiang Yi , Zhou Hong

A review of CP violation from the Standard Model to strings is given which includes a broad landscape of particle physics models, encompassing the non-supersymmetric 4D extensions of the standard model, and models based on supersymmetry, on…

High Energy Physics - Phenomenology · Physics 2008-11-26 Tarek Ibrahim , Pran Nath
‹ Prev 1 2 3 10 Next ›