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Related papers: New Constraint on Weak CP Phase, Rephasing Invaria…

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The Daya Bay Collaboration (An et al) has recently proclaimed discovery of non-zero reactor angle, $\theta_{13}$, $\sin^{2}2\theta_{13}$=0.092$\pm$0.016(stat)$\pm$0.005(syst), at $5.2\sigma$ which is in conformity with the earlier…

High Energy Physics - Phenomenology · Physics 2012-07-17 Surender Verma

For flavor neutrino masses M^{PDG}_{ij} (i,j=e,mu,tau) compatible with the phase convention defined by Particle Data Group (PDG), if neutrino mixings are controlled by small corrections to those with sin(theta_{13})=0 denoted by…

High Energy Physics - Phenomenology · Physics 2015-06-05 Masaki Yasue

In a general two-scalar-doublet model without fermions, there is a unique source of CP violation, $ J_1 $, in the gauge interactions of the scalars. It arises in the mixing of the three neutral physical scalars $ X_1 $, $ X_2 $ and $ X_3 $.…

High Energy Physics - Phenomenology · Physics 2010-11-01 L. Lavoura

Three CP-violating phases of the $3\times 3$ lepton flavor mixing matrix $V$, denoted as $\delta$, $\rho$ and $\sigma$ in a useful phase convention, are entangled with one another in the one-loop renormalization-group equations. We show…

High Energy Physics - Phenomenology · Physics 2009-04-25 Zhi-zhong Xing

We review the physics case for CP-violating axions. In the first part, we focus on the Quantum Chromodynamics (QCD) axion and argue that new sources of CP violation beyond QCD misalign the axion solution to the strong CP problem and can…

High Energy Physics - Phenomenology · Physics 2024-01-01 Luca Di Luzio , Hector Gisbert , Gabriele Levati , Paride Paradisi , Philip Sørensen

The essences of the weak CP violation, the quark and lepton Jarlskog invariants, are determined toward future model buildings beyond the Standard Model (SM). The equivalence of two calculations of Jarlskog invariants gives a bound on the CP…

High Energy Physics - Phenomenology · Physics 2020-09-09 Jihn E. Kim , Se-Jin Kim , Soonkeon Nam , Myungbo Shim

CP violation in the standard model originates from the Cabibbo-Kobayashi-Maskawa mixing matrix. Upon integrating all fermions out of the theory, its effects are captured by a series of effective nonrenormalizable operators for the bosonic…

High Energy Physics - Phenomenology · Physics 2012-11-15 Tomas Brauner , Olli Taanila , Anders Tranberg , Aleksi Vuorinen

Evidence of physics beyond the Standard Model (SM) of particle physics might be revealed through CP violation. Experimental results from BaBar, Belle, and most recently from LHCb are very interesting in this respect. It is important to…

High Energy Physics - Phenomenology · Physics 2015-04-20 Jihn E. Kim , Doh Young Mo , Soonkeon Nam

The starting point of these lectures is an introduction to the weak interactions of quarks and the Standard-Model description of CP violation, where the central role is played by the Cabibbo-Kobayashi-Maskawa matrix and the corresponding…

High Energy Physics - Phenomenology · Physics 2007-05-23 Robert Fleischer

We study CP violation in $J/\psi \rightarrow \Lambda \bar{\Lambda}$ decay. This decay provides a good place to look for CP violation. Some observables are very sensitive to the $\Lambda$ electric dipole moment $d_\Lambda$ and therefore can…

High Energy Physics - Phenomenology · Physics 2009-12-30 Xiao-Gang He , J. P. Ma , B. McKellar

We explore the phenomenology of Weinberg's $Z_2\times Z_2$ symmetric three-Higgs-doublet potential, allowing for spontaneous violation of CP due to complex vacuum expectation values. An overview of all possible ways of satisfying the…

High Energy Physics - Phenomenology · Physics 2025-09-17 O. M. Ogreid , P. Osland , M. N. Rebelo

We consider the most general gauge-invariant, chirality-conserving contact interactions in the process e +e- -> gamma Z, of the type proposed Abraham and Lampe, in order to explore the possibility of CP violation at future linear colliders…

High Energy Physics - Phenomenology · Physics 2010-11-05 B. Ananthanarayan , Saurabh D. Rindani

We work in a model where all CP violating phenomena have a common source. CP is spontaneously broken at a large scale $V$ through the phase of a complex singlet scalar. An additional $SU(2)_L$ singlet vector-like down-type quark relates…

High Energy Physics - Phenomenology · Physics 2014-11-18 Biswajit Adhikary

We study the correlation between CP violation in neutrino oscillations and leptogenesis in the framework with two heavy Majorana neutrinos and three light neutrinos. Among three unremovable CP phases, a heavy Majorana phase contributes to…

High Energy Physics - Phenomenology · Physics 2009-11-07 T. Endoh , S. Kaneko , S. K. Kang , T. Morozumi , M. Tanimoto

We explore CP violation in a Left-Right Model that reproduces the quark mass and CKM rotation angle hierarchies in a relatively natural way by fixing the bidoublet Higgs VEVs to be in the ratio m_b:m_t. Our model is quite general and allows…

High Energy Physics - Phenomenology · Physics 2009-11-07 Ken Kiers , Jeff Kolb , John Lee , Amarjit Soni , Guo-Hong Wu

We update our 1993 analysis of the CP violating ratio $\epe$ in view of the changes in several input parameters, in particular the improved value of the top quark mass. We also investigate the strange quark mass $m_s$ dependence of $\epe$…

High Energy Physics - Phenomenology · Physics 2014-11-17 A. J. Buras , M. Jamin , M. E. Lautenbacher

We consider a parametrization of the lepton mixing matrix in which the deviations from maximal atmospheric mixing and vanishing reactor mixing are obtained in terms of small corrections from the charged lepton sector. Relatively large…

High Energy Physics - Phenomenology · Physics 2012-02-17 S. Dev , Shivani Gupta , Radha Raman Gautam

We construct a model based on SUSY SO(10) combined with U(2) family symmetry including complex phases leading to CP violation. In contrast with the commonly used effective operator approach, \bar{126}-dimensional Higgs fields are utilized…

High Energy Physics - Phenomenology · Physics 2007-05-23 Mu-Chun Chen , K. T. Mahanthappa

In a degenerate scheme with mass m_0 a complete analysis of the allowed range of the effective electron neutrino Majorana mass <m> is performed. Special attention is paid to effects of cancellations caused either by intrinsic CP parities of…

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

We report on a measurement of the Cabibbo-Kobayashi-Maskawa CP-violating phase gamma through a Dalitz analysis of neutral D decays to K0s pi- pi+ in the processes B-+ -> D(*)K-+, D* -> D pi0, D gamma. Using a sample of 227 million BBbar…

High Energy Physics - Experiment · Physics 2010-03-19 B. Aubert , BABAR Collaboration