English
Related papers

Related papers: Moderate Supersymmetric CP Violation

200 papers

Atomic and molecular electric dipole moments are calculated within the minimal supersymmetric standard model. Present experiments already provide strong bounds on the combination of phases responsible for the dipole moments of the neutron…

High Energy Physics - Phenomenology · Physics 2010-11-01 Willy Fischler , Sonia Paban , Scott Thomas

We review the main reasons pushing us beyond the SM and we argue in favor of new physics at the electroweak scale (hence experimentally accessible at present or near-future machines). We focus on the appealing possibility that such new…

High Energy Physics - Phenomenology · Physics 2017-08-23 Antonio Masiero , Oscar Vives

We analyse the low-energy phenomenology of alignment models both model-independently and within supersymmetric (SUSY) scenarios focusing on their CP violation tests at LHCII. Assuming that New Physics (NP) contributes to K-Kbar and D-Dbar…

High Energy Physics - Phenomenology · Physics 2016-03-23 Diptimoy Ghosh , Paride Paradisi , Gilad Perez , Gabriele Spada

We re-examine spontaneous $\cp$ violation (SCPV) at the tree level in the context of the next-to-minimal supersymmetric standard model (NMSSM) with two Higgs doublets and a gauge singlet field. We analyse the most general Higgs potential…

High Energy Physics - Phenomenology · Physics 2007-05-23 G. C. Branco , F. Krüger , J. C. Romão , A. M. Teixeira

We discuss a rate asymmetry for the radiative $B$-meson decay $B \to X_s \gamma$ within the framework of the supersymmetric standard model based on N=1 supergravity. This model contains new sources of CP violation. In spite of severe…

High Energy Physics - Phenomenology · Physics 2008-11-26 Mayumi Aoki

The electric dipole moment (EDM) is a very sensitive probe of CP violation beyond the standard model, and it as been measured in many systems such as atoms, neutrons, etc. The EDM of composite systems may be sensitive to several elementary…

High Energy Physics - Phenomenology · Physics 2019-02-05 Nodoka Yamanaka

We re-examine spontaneous CP violation at the tree level in the context of the next-to-minimal supersymmetric standard model (NMSSM) with two Higgs doublets and a gauge singlet field. We analyse the most general Higgs potential without a…

High Energy Physics - Phenomenology · Physics 2010-02-03 G. C. Branco , F. Krüger , J. C. Romão , A. M. Teixeira

We report the first fully general numerical calculation of the neutron and electron dipole moments, including the seven significant phases. We find that there are major regions in the parameter space where none of the phases are required to…

High Energy Physics - Phenomenology · Physics 2016-08-25 Michal Brhlik , Gerald J. Good , G. L. Kane

In the minimal supersymmetric standard model (MSSM), the \mu-parameter and the trilinear coupling A_t may be generically complex and can affect various observables at B factories. Imposing the edm constraints, we find that there is no new…

High Energy Physics - Phenomenology · Physics 2008-11-26 Seungwon Baek , Pyungwon Ko

Indirect information about the possible scale of supersymmetry (SUSY) breaking can be obtained from the comparison of precisely measured observables (and also of exclusion limits) with accurate theory predictions incorporating SUSY loop…

High Energy Physics - Phenomenology · Physics 2007-11-02 Georg Weiglein

We analyze the constraints placed on individual, flavor diagonal CP-violating phases in the minimal supersymmetric extension of the Standard Model (MSSM) by current experimental bounds on the electric dipole moments (EDMs) of the neutron,…

High Energy Physics - Phenomenology · Physics 2014-11-21 Yingchuan Li , Stefano Profumo , Michael Ramsey-Musolf

The Minimal Supersymmetric Standard Model can possess several CP-violating phases beyond the conventional Cabibo-Kobayashi-Maskawa phase. We calculate the contribution of these phases to T-violating nuclear forces. These forces induce a…

High Energy Physics - Phenomenology · Physics 2009-09-15 Toby Falk , Keith A. Olive , Maxim Pospelov , Radu Roiban

The one loop supersymmetric electro-weak correction to the anomalous magnetic moment of the muon is derived in the minimal N=1 supergravity unification with two CP violating phases. A numerical analysis of the CP violating effects on…

High Energy Physics - Phenomenology · Physics 2009-10-31 Tarek Ibrahim , Pran Nath

The electric dipole moment is examined in a three-loop neutrino mass model with dark matter originally proposed in Aoki et al. [Phys. Rev. Lett. 102, 051805 (2009)]. The model contains a $CP$-violating phase in the Higgs potential which…

High Energy Physics - Phenomenology · Physics 2024-07-31 Kazuki Enomoto , Shinya Kanemura , Sora Taniguchi

We consider a class of N=1 supersymmetric extensions of the Standard Model in which the soft breaking sector is CP conserving at the GUT scale. We study the question of whether the presence of explicit CP violation in the Yukawa sector of…

High Energy Physics - Phenomenology · Physics 2010-11-01 S. Bertolini , F. Vissani

We study CP violation in semi-leptonic $\tau$ decays and we determine the conditions necessary to be able to define a observable CP asymmetry. We apply these conditions in both models, the standard model for the electroweak interactions and…

High Energy Physics - Phenomenology · Physics 2008-11-26 David Delepine

The $CP$ violation in the neutrino transition electromagnetic dipole moment is discussed in the context of the Standard Model with an arbitrary number of right-handed singlet neutrinos. A full one-loop calculation of the neutrino…

High Energy Physics - Phenomenology · Physics 2020-12-29 Shyam Balaji , Maura Ramirez-Quezada , Ye-Ling Zhou

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…

High Energy Physics - Phenomenology · Physics 2018-12-05 Shankar Sunil Nair , Elisabetta Perotti , Stefan Leupold

If the soft Supersymmetry (SUSY) breaking masses and couplings are complex, then the associated CP-violating phases can in principle modify the known phenomenological pattern of the Minimal Supersymmetric Standard Model (MSSM). We…

High Energy Physics - Phenomenology · Physics 2009-10-31 A. Dedes , S. Moretti

We revisit the supersymmetric CP problem and find that it can be naturally resolved if the origin of CP violation is closely related to the origin of flavour structures. In this case, the supersymmetry breaking dynamics do not bring in any…

High Energy Physics - Phenomenology · Physics 2009-10-31 S. Abel , D. Bailin , S. Khalil , O. Lebedev
‹ Prev 1 4 5 6 7 8 10 Next ›