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We calculate the CP-violating effects in the top quark semi-leptonic three body decays induced by the supersymmetric CP-odd phase of the top squark trilinear soft breaking term $\arg(A_t)$. The light top squark mass is assumed to be close…

High Energy Physics - Phenomenology · Physics 2009-01-07 Xiao-Jun Bi , Yuan-Ben Dai

We discuss the prospects for observing CP violation in the MSSM with six CP-violating phases, using a geometric approach to maximise CP-violating observables subject to the experimental upper bounds on electric dipole moments. We consider…

High Energy Physics - Phenomenology · Physics 2016-11-17 A. Arbey , J. Ellis , R. M. Godbole , F. Mahmoudi

The possibility of observing CP-violation in the process $\gamma \gamma \to H$ is investigated for masses of the Higgs particle in the interval $M_z \lsim m_H \lsim 2 m_t$, using a 0.5TeV tunable linear $e^{+} e^{-}$ collider through laser…

High Energy Physics - Phenomenology · Physics 2014-11-17 G. J. Gounaris , G. P. Tsirigoti

We present the analysis of CP-violating effects in non-diagonal chargino pair production in e+e- collisions. These effects appear only at the one-loop level. We show that CP-odd asymmetries in chargino production are sensitive to the phases…

High Energy Physics - Phenomenology · Physics 2008-11-26 Krzysztof Rolbiecki , Jan Kalinowski

I present a review of current and near-future experimental investigations of CP violation. In this review, I cover limits on particle electric dipole moments (EDMs) and CP violation studies in the K and B systems. The wealth of results from…

High Energy Physics - Experiment · Physics 2010-11-05 Owen Long

We comment on CP, T and CPT violation in the light of interesting new data from the CPLEAR and KTeV Collaborations on neutral kaon decay asymmetries. Other recent data from the CPLEAR experiment, constraining possible violations of CPT and…

High Energy Physics - Phenomenology · Physics 2009-09-11 John Ellis , N. E. Mavromatos

We revisit the effect of CP violating anomalous top-quark couplings in $t\bar{t}$ production and decay. We consider $t\bar{t}$ production through gluon fusion (and light $q{\bar q}$ annihilation) followed by top-quark decay into $bW$ or…

High Energy Physics - Phenomenology · Physics 2009-05-08 Oleg Antipin , G. Valencia

The status of CP violation and the CKM matrix is reviewed. Direct CP violation in B decay has been established and the measurement of sin(2beta) in \psi K modes reached 5% accuracy. I discuss the implications of these, and of the possible…

High Energy Physics - Phenomenology · Physics 2014-11-17 Zoltan Ligeti

A number of top-spin observables are computed within the Standard Model (SM), at next-to-leading order in the strong and weak gauge couplings for hadronic top-quark anti-quark (ttbar) production and decay at the LHC for center-of-mass…

High Energy Physics - Phenomenology · Physics 2015-06-15 Werner Bernreuther , Zong-Guo Si

I give a short overview about the possibilities and problems related to the measurement of CP violation in long baseline experiments. Special attention is paid to the issue of degeneracies and a method for their resolution is quantitatively…

High Energy Physics - Phenomenology · Physics 2016-09-06 Patrick Huber

The salient features of CP-violating interactions in the standard electroweak theory and in a few of its popular extensions are discussed. Moreover a brief overview is given on the status and prospects of searches for CP non-conservation…

High Energy Physics - Phenomenology · Physics 2009-10-31 W. Bernreuther

Supersymmetric extensions of the standard model generically contain additional sources of CP violation. We discuss how at one loop a potentially large CP violating coupling of the lightest Higgs, h^0, to leptons is induced in the minimal…

High Energy Physics - Phenomenology · Physics 2016-08-25 K. S. Babu , Christopher Kolda , John March-Russell , Frank Wilczek

CP violation at low energy is investigated at the tau electromagnetic vertex. High statistics at B factories, and on top of the Upsilon resonances, allows a detailed investigation of CP-odd observables related to the tau-pair production.…

High Energy Physics - Phenomenology · Physics 2009-11-10 J. Bernabeu , G. A. Gonzalez-Sprinberg , J. Vidal

I review CP violation in the standard model (SM). I also describe the predictions for CP violation in the B system, along with signals for physics beyond the SM. I stress the numerous contributions of Pat O'Donnell to this subject. Finally,…

High Energy Physics - Phenomenology · Physics 2009-11-10 David London

CP violation in the field of $B$ physics is a crucial topic for exploring the quark sector and search for New Physics, both for theorists and experimentalists. CP violation manifests itself in various ways and in this presentation, we will…

High Energy Physics - Phenomenology · Physics 2024-02-16 Eleftheria Malami

First full next-to-leading order analytical results in Chiral Perturbation Theory for the charged Kaon K -> 3 pi slope g and decay rates CP-violating asymmetries are presented. We discuss the constraints that a measurement of these…

High Energy Physics - Phenomenology · Physics 2017-08-23 Elvira Gamiz , Joaquim Prades , Ignazio Scimemi

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 a phase in the Cabibbo-Kobayashi-Maskawa (CKM) matrix can be tested through a variety of CP asymmetries…

High Energy Physics - Phenomenology · Physics 2016-09-06 Michael Gronau

The observation of a sizable direct CP asymmetry in the inclusive decays B -> X_s gamma would be a clean signal of New Physics. In the Standard Model, this asymmetry is below 1% in magnitude. In extensions of the Standard Model with new…

High Energy Physics - Phenomenology · Physics 2007-05-23 Matthias Neubert

It is shown that in R-parity violating models of supersymmetry, the CP violation observed in the kaon system could arise purely from the R-parity violating scalar interactions (A-terms), with no CP violation in the CKM matrix. The direct CP…

High Energy Physics - Phenomenology · Physics 2009-10-30 S. A. Abel

Recent experimental results on CP violation in the B sector from BABAR and BELLE, experiments at asymmetric e+e- B-Factories, are summarized in these proceedings. The constraint on the position of the apex of the unitary triangle, obtained…

High Energy Physics - Experiment · Physics 2014-11-17 Sergey Ganzhur