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Related papers: The CKM Matrix and the Unitarity Triangle

200 papers

Investigating the CKM matrix in different parametrization schemes, it is noticed that those schemes can be divided into a few groups where the sine values of the CP phase for each group are approximately equal. Using those relations,…

High Energy Physics - Phenomenology · Physics 2016-03-10 Hong-Wei Ke , Song-Xue Zhao , Xue-Qian Li

Status of lattice calculations of hadron matrix elements along with CP violation in B and in K systems is reviewed. Lattice has provided useful input which, in conjunction with experimenatl data, leads to the conclusion that CP-odd phase in…

High Energy Physics - Phenomenology · Physics 2010-11-23 Amarjit Soni

We present a comprehensive analysis of leptonic unitarity triangles, using both current neutrino oscillation data and projections of next-generation oscillation measurements. Future experiments, sensitive to the degree of CP violation in…

High Energy Physics - Phenomenology · Physics 2021-01-04 Sebastian A. R. Ellis , Kevin J. Kelly , Shirley Weishi Li

The phenomenon of $B^0_q$-$\bar{B}^0_q$ mixing ($q=d,s$) provides a sensitive probe for physics beyond the Standard Model. We have a careful look at the determination of the Unitarity Triangle apex, which is needed for the Standard Model…

High Energy Physics - Phenomenology · Physics 2023-02-01 Kristof De Bruyn , Robert Fleischer , Eleftheria Malami , Philine van Vliet

A review of the current status of the Cabibbo-Kobayashi-Maskawa matrix (CKM) is presented. This paper is an update of the results published in [1]. The experimental constraints imposed by the measurements of \epsilon_K, V_{ub}/V_{cb},…

High Energy Physics - Experiment · Physics 2010-11-23 F. Parodi , P. Roudeau , A. Stocchi

Many topics are discussed in b physics including lifetimes, decay mechanisms, determinations of the CKM matrix elements |V_{cb}| and |V_{ub}|, facilities for b quark studies, neutral $B$ meson mixing, rare b decays, hadronic decays and CP…

High Energy Physics - Phenomenology · Physics 2007-05-23 Sheldon Stone

The B-meson system provides many strategies to perform stringent tests of the Standard-Model description of CP violation. In this brief review, we discuss implications of the currently available B-factory data on the angles alpha, beta and…

High Energy Physics - Phenomenology · Physics 2010-11-23 Robert Fleischer

The latest fits to the CKM matrix indicate that alpha=(90.7+4.5-2.9) degrees. The proximity of alpha to a right-angle raises the question: is it merely accidental or is it due to some physics beyond the Standard Model? In the framework of…

High Energy Physics - Phenomenology · Physics 2009-04-21 P. F. Harrison , D. R. J. Roythorne , W. G. Scott

In the Standard Model of elementary particles, quark-mixing is expressed in terms of a 3 x 3 unitary matrix V, the so called Cabibbo-Kobayashi-Maskawa (CKM) matrix. Significant unitarity checks are so far possible for the first row of this…

High Energy Physics - Phenomenology · Physics 2012-07-03 H. Abele , E. Barberio , D. Dubbers , F. Glueck , J. C. Hardy , W. J. Marciano , A. Serebrov , N. Severijns

We update the constraints on the parameters of the quark flavour mixing matrix $V_{CKM}$ in the standard model using the latest experimental and theoretical results as input. We present the 95$\%$ C.L. allowed region of the unitarity…

High Energy Physics - Phenomenology · Physics 2007-05-23 Ahmed Ali , David London

The possibility to test the unitarity triangle of CKM matrix is examined by using the semileptonic rare $B$ decays, $B \rightarrow X_q \, \l^+ \, \l^-$ with $q = d, s$ and $\l$'s are leptons. The discussion is emphasized on the CP asymmetry…

High Energy Physics - Phenomenology · Physics 2007-05-23 L. T. Handoko

We report on studies of three types of B-meson decay that can contribute to an understanding of fundamental intergenerational quark mixing, charge-conjugation--parity violation, and long-distance quantum chromodynamics. Specifically, we…

High Energy Physics - Experiment · Physics 2007-05-23 Andreas Warburton

An analysis of the CKM matrix parameters within the {\it R}fit approach is presented using updated input values with special emphasis on the recent $\sin{2\beta}$ measurements from BABAR and Belle. The QCD Factorisation Approach describing…

High Energy Physics - Phenomenology · Physics 2008-11-26 A. Höcker , H. Lacker , S. Laplace , F. Le Diberder

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

These lectures give an up to date description of CP violation and rare decays of K and B mesons and consist of ten chapters: i) Grand view of the field including CKM matrix and the unitarity triangle, ii) General aspects of the theoretical…

High Energy Physics - Phenomenology · Physics 2017-08-23 Andrzej J. Buras

We briefly review existing proposals for the renormalization of the Cabibbo-Kobayashi-Maskawa (CKM) matrix and study the numerical effects of several of them on the W-boson hadronic partial decay widths. We then use these results to…

High Energy Physics - Phenomenology · Physics 2014-11-18 A. A. Almasy , B. A. Kniehl , A. Sirlin

On behalf of the Babar and Belle collaborations, we report on the measurement of the angle gamma and on the sum of angles 2 beta+gamma of the Unitarity Triangle.

High Energy Physics - Experiment · Physics 2007-05-23 Jean-Pierre Lees

Measurements by various international groups of researchers determine the strength of the weak interaction of the neutron, which gives us unique information on the question of the quark mixing. Neutron decay experiments now challenge the…

High Energy Physics - Experiment · Physics 2010-11-23 Hartmut Abele

I review the many ways of obtaining information about the CKM matrix through CP violation in the $B$ system. I include direct and indirect CP violation, the role of penguins and isospin analysis, tagging, and $B\to DK$ decays. I also…

High Energy Physics - Phenomenology · Physics 2009-10-28 David London

Although the unitarity triangles ($UTs$) carry information about the Kobayashi-Maskawa (KM) quark mixing matrix, it explicitly contains just three parameters which is one short to completely fix the KM matrix. It has been shown recently, by…

High Energy Physics - Phenomenology · Physics 2014-11-20 Paul H. Frampton , Xiao-Gang He