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Related papers: Invariant analysis of CP violation

200 papers

Lorentz and CPT invariance are among the symmetries that can be investigated with ultrahigh precision in subatomic physics. Being spacetime symmetries, Lorentz and CPT invariance can be violated by minuscule amounts in many theoretical…

High Energy Physics - Phenomenology · Physics 2016-04-21 Ralf Lehnert

The CP violation effects in long baseline neutrino oscillations are studied in the framework of a four-neutrino model (three active neutrinos and one sterile neutrino). It is assumed that neutrino masses are devided into two nearly…

High Energy Physics - Phenomenology · Physics 2008-11-26 Anna Kalliomäki , Jukka Maalampi , Morimitsu Tanimoto

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…

High Energy Physics - Phenomenology · Physics 2016-09-06 M. Gronau

We study the spontaneous $CP$ violation through the stabilization of the modulus $\tau$ in modular invariant flavor models. The $CP$-invaraiant potentential has the minimum only at ${\rm Re}[\tau] = 0$ or 1/2. From this prediction, we study…

High Energy Physics - Phenomenology · Physics 2020-04-08 Tatsuo Kobayashi , Yusuke Shimizu , Kenta Takagi , Morimitsu Tanimoto , Takuya H. Tatsuishi , Hikaru Uchida

The problem of CP conservation and CP violation for two heavy neutrinos production in $e^+e^-$ interaction is considered. Very convenient way of parametrization of the neutrino mass matrix, from which necessary and sufficient condition for…

High Energy Physics - Phenomenology · Physics 2010-11-01 J. Gluza , M. Zralek

We review some aspects of neutrino physics and CP violation both in the quark and lepton sectors.

High Energy Physics - Phenomenology · Physics 2008-11-26 G. C. Branco , M. N. Rebelo

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

We discuss the question of CP-violation in the effective Hamiltonian approach in models of leptogenesis through heavy right handed neutrino decays. We first formulate the problem in four component notation and then point out that before the…

High Energy Physics - Phenomenology · Physics 2009-10-31 Utpal Sarkar , R. Vaidya

The prospects of experimental detection of $CP$ violation at $e^+e^-$ and $pp/p\overline{p}$ colliders are reviewed. After a general discussion on the quantities which can measure $CP$ violation and on the implications of the $CPT$ theorem,…

High Energy Physics - Phenomenology · Physics 2010-11-01 Saurabh D. Rindani

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

In this short lecture, we discuss some basic phenomenological aspects of CP and T violation in neutrino oscillation. Using CP/T trajectory diagrams in the bi-probability space, we try to sketch out some essential features of the interplay…

High Energy Physics - Phenomenology · Physics 2009-11-10 Hisakazu Minakata , Hiroshi Nunokawa , Stephen Parke

We study effects of CP violation in a modified bipair neutrino mixing scheme predicting $\sin^2\theta_{23}$ near both 0.4 and 0.6 currently consistent with experimentally allowed values. The source of CP violation is supplied by charged…

High Energy Physics - Phenomenology · Physics 2015-06-19 Jun Iizuka , Yoshikazu Kaneko , Teruyuki Kitabayashi , Naoto Koizumi , Masaki Yasue

We review the physics of CP violation in B decays. After introducing the CKM matrix and how it causes CP violation, we cover three types of CP violation that can occur in B decays: CP violation in mixing, CP violation by mixing-decay…

High Energy Physics - Phenomenology · Physics 2007-05-23 Hitoshi Yamamoto

We discuss how CP violation generating lepton number asymmetry can be related to CP violation in low energy.

High Energy Physics - Phenomenology · Physics 2009-11-07 G. C. Branco , T. Morozumi , B. M. Nobre , M. N. Rebelo

As is well-known, there exist totally three CP-violating phases in the leptonic sector if three ordinary neutrinos are massive Majorana particles. In this short note, we raise the question whether the number of sufficient and necessary…

High Energy Physics - Phenomenology · Physics 2021-10-05 Bingrong Yu , Shun Zhou

We constructed rephasing invariant measures of CP violation with elements of the neutrino mass matrix, in the basis in which the charged lepton mass matrix is diagonal. We discuss some examples of neutrino mass matrices with texture zeroes,…

High Energy Physics - Phenomenology · Physics 2008-11-26 Utpal Sarkar , Santosh K. Singh

We review some recent results on the connection between CP violation at low energies and Leptogenesis in the framework of specific flavour structures for the fundamental leptonic mass matrices with zero textures.

High Energy Physics - Phenomenology · Physics 2017-08-23 M. N. Rebelo

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

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).

High Energy Physics - Phenomenology · Physics 2007-05-23 Chao-Shang Huang , Wei Liao

We reconsider the meaning of observing CP violation in neutrino oscillation.

High Energy Physics - Phenomenology · Physics 2008-11-26 Joe Sato