English
Related papers

Related papers: A simple expression of the Jarlskog determinant

200 papers

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

We find that the precision and accuracy of current experimental data on the moduli of nine Cabibbo-Kobayashi-Maskawa (CKM) quark flavor mixing matrix elements allow us to numerically determine the it correct size of the Jarlskog invariant…

High Energy Physics - Phenomenology · Physics 2023-10-26 Shu Luo , Zhi-zhong Xing

A physically viable ansatz for quark mass matrices must satisfy certain constraints, like the constraint imposed by CP-violation. In this article we study a concrete example, by looking at some generic matrices with a nearly democratic…

High Energy Physics - Phenomenology · Physics 2026-03-10 A. Kleppe

The Jarlskog rephasing invariant parameter $|J|$ is evaluated using one of the six Unitarity Triangles involving well known CKM matrix elements \vud, \vus,~\rub, ~\vcd, ~\vcs~ and ~\vcb. With PDG2000 values of \vud~ etc. as input, we obtain…

High Energy Physics - Phenomenology · Physics 2014-11-17 Monika Randhawa , V. Bhatnagar , P. S. Gill , M. Gupta

We construct a natural measure on the space of CKM matrices in the standard model, assuming the fermion mass matrices are randomly selected from a distribution which fits the observed quark mass hierarchy. This measure allows us to assess…

High Energy Physics - Phenomenology · Physics 2010-04-15 Gary W. Gibbons , Steffen Gielen , C. N. Pope , Neil Turok

By using the relation between CP-violation phase and the mixing angles in Cabibbo-Kobayashi-Maskawa matrix postulated by us before, the rephasing invariant is recalculated. Furthermore, the problem about maximal CP violation is discussed.…

High Energy Physics - Phenomenology · Physics 2007-05-23 Yong Liu

The first principle derivation of kinetic transport equations suggests that a CP-violating mass term during the electroweak phase transition can induce axial vector currents. Since the important terms are of first order in gradients there…

High Energy Physics - Phenomenology · Physics 2007-05-23 T. Konstandin

We investigate the future determination of the CKM matrix using theoretically clean quantities, like $B(K^+\to\pi^+\nu\bar\nu)$, $B(K_L\to\pi^0\nu\bar\nu)$ or $\sin 2\beta$, $\sin 2\alpha$ as extracted from CP violation studies in $B$…

High Energy Physics - Phenomenology · Physics 2009-10-09 Gerhard Buchalla , Andrzej J. Buras

We study the Planck scale effects on Jarlskog determinant. Quantum gravitational (Planck scale) effects lead to an effective SU(2)_{L}\times U(1) invariant dimension-5 Lagrangian involving neutrino and Higgs fields, which gives rise to…

High Energy Physics - Phenomenology · Physics 2009-06-25 Bipin Singh Koranga , S. Uma Sankar

A preliminary determination of the Dirac phase in the PMNS matrix is $\dell\approx -\frac{\pi}{2}$. A rather accurately determined Jarlskog invariant $J$ in the CKM matrix is close to the maximum. Since the phases in the CKM and PMNS…

High Energy Physics - Phenomenology · Physics 2016-02-17 Jihn E. Kim , Soonkeon Nam

To extract sum rules of CKM matrix elements, eigenvalue problems for quasi-democratic mass matrices are solved in the first order perturbation approximation with respect to small deviations from the democratic limit. Mass spectra of up and…

High Energy Physics - Phenomenology · Physics 2014-11-17 I. S. Sogami , K. Nishida , H. Tanaka , T. Shinohara

We discuss the generalization of the Jarlskog condition of CP conservation for the case of the Standard Model with 4~quark generations. We express this condition in terms of the 3 Jarlskog invariants of the CKM matrix. Next we present the…

High Energy Physics - Phenomenology · Physics 2020-04-22 Ubaldo Cavazos Olivas , S. Rebeca Juárez Wysozka , Piotr Kielanowski

We present the analysis of the renormalization based evolution of the CP-violation observables obtained from the $C$ matrix introduced by Jarlskog. We show that the observables $\vert\det C\vert$ and $\operatorname{Tr}C^{2}$ decrease very…

High Energy Physics - Phenomenology · Physics 2015-02-25 Hilario Pérez , Piotr Kielanowski , S. Rebeca Juárez W. , Gerardo Mora

We derive an effective action of the bosonic sector of the Standard Model by integrating out the fermionic degrees of freedom in the worldline approach. The CP violation due to the complex phase in the CKM matrix gives rise to CP-violating…

High Energy Physics - Phenomenology · Physics 2009-11-13 Andres Hernandez , Thomas Konstandin , Michael G. Schmidt

We examine the possibility that the form of the lepton mixing matrix can be determined by extremising the Jarlskog flavour invariants associated, eg. with the commutator ($C$) of the lepton mass matrices. Introducing a strictly covariant…

High Energy Physics - Phenomenology · Physics 2009-11-11 P. F. Harrison , W. G. Scott

We consider future experiments to detect CP violation in neutrino oscillations and discuss how to test that all asymmetries are indeed described in terms of the single leptonic Jarlskog invariant as predicted in the absence of new physics…

High Energy Physics - Phenomenology · Physics 2008-12-18 Guido Altarelli , Davide Meloni

The hierarchy amongst the CKM matrix elements, highlighted recently by Luo and Xing, has been rigorously revisited using the PDG parameterization incorporating unitarity constraints. Further, we have explored the evaluation of the CP…

High Energy Physics - Phenomenology · Physics 2024-08-02 Gurjit Kaur , Gulsheen Ahuja , Dheeraj Shukla , Manmohan Gupta

We present a new method to analyze upcoming results in the search for CP violating neutrino oscillations. The CP violating amplitudes $\mathcal{A}_{\alpha\beta}^{kj}$ provide parametrization independent observables, which will be accessible…

High Energy Physics - Phenomenology · Physics 2017-04-12 Heinrich Päs , Philipp Sicking

It is shown that two specific properties of the unitary matrix $V$ can be expressed directly in terms of the matrix elements and eigenvalues of the hermitian matrix $M$ which is diagonalized by $V$. These are the asymmetry $\Delta(V)=…

High Energy Physics - Phenomenology · Physics 2009-11-11 S. Chaturvedi , Virendra Gupta

Using the worldline method, we derive an effective action of the bosonic sector of the Standard Model by integrating out the fermionic degrees of freedom. The CP violation stemming from the complex phase in the CKM matrix gives rise to…

High Energy Physics - Phenomenology · Physics 2009-11-13 Andres Hernandez , Thomas Konstandin , Michael G. Schmidt
‹ Prev 1 2 3 10 Next ›