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相关论文: SUSY-Induced CP Violation in $t$ Decays at $e^-e^+…

200 篇论文

The direct CP-violation in the left-right symmetric $SU(2) \times SU(2) \times U(1)$ model is investigated for the decay $b \rightarrow s\gamma$. The calculated CP-asymmetry for the wide range of parameters can be larger than in standard…

高能物理 - 唯象学 · 物理学 2009-10-28 H. Asatrian , A. Ioannissian

We consider a general two-Higgs-doublet model with CP violation in the scalar sector. Three neutral Higgs fields of the model all mix and the resulting physical Higgs bosons have no definite CP properties. That leads, at the one-loop level…

高能物理 - 唯象学 · 物理学 2011-03-23 Bohdan Grzadkowski , Jacek Pliszka

We explore the prospects for observing CP violation in the minimal supersymmetric extension of the Standard Model (MSSM) with six CP-violating parameters, three gaugino mass phases and three phases in trilinear soft supersymmetry-breaking…

高能物理 - 唯象学 · 物理学 2015-03-03 A. Arbey , J. Ellis , R. M. Godbole , F. Mahmoudi

We reexamine large CP-violating phases in the general Minimal Supersymmetric Standard Model, as well as more restricted models. We perform a detailed scan over parameter space to find solutions which satisfy the current experimental limits…

高能物理 - 唯象学 · 物理学 2009-09-15 V. Barger , T. Falk , T. Han , J. Jiang , T. Li , T. Plehn

We investigate possible CP violating effects in $e^+e^-$ annihilation into top quark pairs. One of the interesting observable effects is the difference in production rates between the two CP conjugate polarized states $t_L\bar t_L$ and…

高能物理 - 唯象学 · 物理学 2009-09-01 Darwin Chang , Wai-Yee Keung , Ivan Phillips

We study effects of CP violation in an associated production of a charged Higgs boson and a top quark at the LHC: $pp \to tH^\pm +X$. We calculate the CP violating asymmetry between the total cross section for $H^+$ and $H^-$ production at…

高能物理 - 唯象学 · 物理学 2008-12-19 Ekaterina Christova , Helmut Eberl , Elena Ginina

We present a novel method to search for a new CP-violating phase in b -> ss~ss~s transition using B -> phi phi Xs decays, where Xs represents a final state with a specific strange flavor such as K+/-, K*+/-, or K+/-pi-/+. Direct CP…

高能物理 - 唯象学 · 物理学 2009-11-10 Masashi Hazumi

Supersymmetric (SUSY) theories include many new parameters, some of which are CP-violating. Assuming that SUSY is found at a future high-energy collider, we examine the decay stop2 -> stop1 tau- tau+ with an eye to obtaining information…

高能物理 - 唯象学 · 物理学 2009-11-11 Ken Kiers , Alejandro Szynkman , David London

We discuss a decay rate asymmetry of the top squark, which is induced by a new source of CP violation intrinsic in the supersymmetric standard model. Although new sources of CP violation in this model are severely constrained from the…

高能物理 - 唯象学 · 物理学 2009-10-31 Mayumi Aoki , Noriyuki Oshimo

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…

高能物理 - 唯象学 · 物理学 2008-11-26 David Delepine

We report on a search for CP violation in the decay $ D^\pm \to K^0_{\scriptscriptstyle S} \pi^\pm $ using a data set corresponding to an integrated luminosity of $ 469\,\,fb^{-1} $ collected with the \slshape B\kern-0.1em{\smaller…

高能物理 - 实验 · 物理学 2011-06-07 The BABAR Collaboration , P. del Amo Sanchez

We study CP violation in chargino production and decay in the Minimal Supersymmetric Standard Model (MSSM) with complex parameters at an e^+ e^- linear collider with longitudinally polarized beams. We investigate CP-sensitive asymmetries by…

高能物理 - 唯象学 · 物理学 2008-11-26 A. Bartl , H. Fraas , S. Hesselbach , K. Hohenwarter-Sodek , T. Kernreiter , G. Moortgat-Pick

Experimental data on rare $B$-meson decays indicate deviations from Standard Model predictions. In studies of these decays, possible new sources of CP violation are often neglected. We discuss CP violation in the rare $B$-meson decays $B\to…

高能物理 - 唯象学 · 物理学 2024-04-12 Robert Fleischer , Eleftheria Malami , Anders Rehult , K. Keri Vos

The subject of CP violation in B decays is reviewed in the Standard Model (SM) and beyond the SM. The present explanation of CP violation in terms of phases in the Cabibbo-Kobayashi-Maskawa (CKM) matrix can be tested through a variety of CP…

高能物理 - 唯象学 · 物理学 2016-09-06 M. Gronau

CP violating asymmetries in both the production and the decays of $s$-channel neutral Higgs bosons at $\mu^+\mu^-$ colliders can be large. If the CP violation occurs in the muon-Higgs coupling, one observes a production asymmetry with…

高能物理 - 唯象学 · 物理学 2010-11-01 David Atwood , Amarjit Soni

We study CP-violating phenomena in the production, mixing and decay of a coupled system of CP-violating neutral Higgs bosons at \gamma \gamma colliders, assuming a Minimal Supersymmetric Standard Model (MSSM) Higgs sector in which CP…

高能物理 - 唯象学 · 物理学 2009-09-11 John Ellis , Jae Sik Lee , Apostolos Pilaftsis

In the MSSM with complex parameters, loop corrections to the decay of a stop into a bottom quark and a chargino can lead to a CP violating decay rate asymmetry. We calculate this asymmetry at full one-loop level and perform a detailed…

高能物理 - 唯象学 · 物理学 2015-05-14 Sebastian M. R. Frank , Helmut Eberl

CP violation in rare leptonic B decays are analyzed in the standard model (SM) and models beyond SM (supersymmetric models and two Higgs doublet models).

高能物理 - 唯象学 · 物理学 2007-05-23 Chao-Shang Huang , Wei Liao

In this talk I review theoretical predictions for CP violation in non-leptonic hyperon decays in the Standard Model and models beyond. In the Standard Model the CP violating observable $A$ in the polarization asymmetries of $\Lambda \to p…

高能物理 - 唯象学 · 物理学 2007-05-23 Xiao-Gang He

In the Minimal Supersymmetric Standard Model, physical phases of complex parameters lead to CP violation. We show how triple products of particle momenta or spins can be used to construct asymmetries, that allow us to probe these CP phases.…

高能物理 - 唯象学 · 物理学 2009-07-22 Olaf Kittel