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We review the current status of the data on neutrino masses and lepton mixing and the prospects for measuring the CP-violating phases in the lepton sector. The possible connection between low energy CP violation encoded in the Dirac and…

High Energy Physics - Phenomenology · Physics 2018-03-05 C. Hagedorn , R. N. Mohapatra , E. Molinaro , C. C. Nishi , S. T. Petcov

We investigate physics opportunities to constraint leptonic CP-violation phase $\delta_{CP}$ through numerical analysis of working neutrino oscillation probability parameters, in the context of long base line experiments. Numerical analysis…

High Energy Physics - Phenomenology · Physics 2016-08-25 Mandip Singh

CP-violating asymmetries in the processes e+e- -> t tbar and gamma gamma -> ttbar can provide information about CP-violating couplings of the top quark, whose presence would signal physics beyond the standard model. Work on studies of…

High Energy Physics - Phenomenology · Physics 2007-05-23 Saurabh D. Rindani

A review is given of CP violation in a broad class of models based on supersymmetry, superstrings and brane models. Such models contain typically large CP violating phases which affect a variety of supersymmetric phenomenon at low energies…

High Energy Physics - Phenomenology · Physics 2007-05-23 Tarek Ibrahim , Pran Nath

We review our recent studies on the effects of CP-violating supersymmetric (SUSY) parameters on the phenomenology of neutralinos, charginos and third generation squarks. The CP-even branching ratios of the squarks show a pronounced…

High Energy Physics - Phenomenology · Physics 2015-06-25 A. Bartl , S. Hesselbach

While the Kobayashi--Maskawa model of CP violation passed its first crucial precision test in $B\to J/\psi K_S$, other CP asymmetries in $B$ and $B_s$ decays will have to be measured in order to critically test and overconstrain the model…

High Energy Physics - Phenomenology · Physics 2007-05-23 Michael Gronau

We study the production processes $e^+e^-\to H^0_iZ$, $H^0_iH^0_j$ and $H^0_i\nu_e\overline \nu_e$ in the context of the CP violating MSSM. In a given channel we show that the cross-section for all i (=1,2,3) can be above 0.1 fb provided…

High Energy Physics - Phenomenology · Physics 2014-11-17 A. G. Akeroyd , Abdesslam Arhrib

The special features of CP violation in the Standard Model are presented. The significance of measuring CP violation in B, K and D decays is explained. The predictions of the Standard Model for CP asymmetries in B decays are analyzed in…

High Energy Physics - Phenomenology · Physics 2007-05-23 Yosef Nir

If the massive neutrinos are identified to be the Majorana particles via a convincing measurement of the neutrinoless double beta (0\nu\beta\beta) decay, how to determine the Majorana CP-violating phases in the 3 x 3 lepton flavor mixing…

High Energy Physics - Phenomenology · Physics 2013-08-09 Zhi-zhong Xing , Ye-Ling Zhou

New and more precise measurements of neutrino cross sections have renewed the interest in a better understanding of electroweak interactions on nucleons and nuclei. This effort is crucial to achieve the precision goals of the neutrino…

High Energy Physics - Phenomenology · Physics 2015-06-19 L. Alvarez-Ruso , Y. Hayato , J. Nieves

We investigate the sensitivities of future neutrino oscillation experiments for measuring the neutrino mass squared differences and leptonic mixing angles independently with neutrinos and anti-neutrinos. We update the expected sensitivities…

High Energy Physics - Phenomenology · Physics 2008-12-10 S. Antusch , E. Fernandez-Martinez

We count the number of CP breaking phases in models with $SU(2)_L\times U(1)_Y$ and $SU(2)_L\times SU(2)_R\times U(1)_{B-L}$ electroweak gauge groups and extended matter contents with some fermion masses vanishing and/or degenerate. Quarks…

High Energy Physics - Phenomenology · Physics 2007-05-23 F. del Aguila , M. Zralek

In this paper we discuss the detection of CP and T-violation effects in the framework of a neutrino factory. We introduce three quantities, which are good discriminants for a non vanishing complex phase ($\delta$) in the $3\times 3$…

High Energy Physics - Phenomenology · Physics 2008-11-26 A. Bueno , M. Campanelli , S. Navas-Concha , A. Rubbia

Most supersymmetric models predict new particles within the reach of the next generation of colliders. For an understanding of the model structure and the mechanism(s) of electroweak symmetry breaking, it is important to know the masses of…

High Energy Physics - Phenomenology · Physics 2007-12-28 A. Sopczak , A. Freitas , C. Milstene , M. Schmitt

We discuss signals for CP-violation in $\mu^+ \mu^- \to \tilde \tau_i^- \tilde \tau_j^+$, where $i,j = 1,2$ label the two scalar $\tau$ mass eigenstates. We assume that these reactions can proceed through the production and decay of the…

High Energy Physics - Phenomenology · Physics 2009-10-31 Seong-Youl Choi , Manuel Drees

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 review some of the salient issues connected to CP-violation and weak decays. In particular, I focus on recent and forthcoming tests of the CKM model and discuss the accuracy one can expect to achieve in B-decays for the parameters of this…

High Energy Physics - Phenomenology · Physics 2007-05-23 R. D. Peccei

The CP-violating effects in the neutralino sector of the MSSM can be observed in event-counting type experiments, i.e. without the need of exploiting variables sensitive to beam or neutralino polarization. On the other hand, such CP-odd…

High Energy Physics - Phenomenology · Physics 2008-12-19 Jan Kalinowski , Krzysztof Rolbiecki

We study the possibility of measuring nonstandard CP violation effects through Dalitz plot analysis in B --> D_s D^0\pi^0 decays. The accuracy in the extraction of CP violating phases is analyzed by performing a Monte Carlo simulation of…

High Energy Physics - Phenomenology · Physics 2007-05-23 Alejandro Szynkman

We present a comprehensive analysis on the MSSM Higgs sector CP violation at photon colliders including the chargino contributions as well as the contributions of other charged particles. The chargino loop contributions can be important for…

High Energy Physics - Phenomenology · Physics 2008-11-26 Saebyok Bae , Byungchul Chung , P. Ko