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Related papers: Relating CKM Parametrizations and Unitarity Triang…

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We examine the unitarity triangle of the KM matrix by using the general quark mass matrices on the NNI basis. The Fritzsch anz\"atz is modified by introducing four additional parameters. The KM matrix elements are expressed in terms of…

High Energy Physics - Phenomenology · Physics 2010-11-23 Toshiaki Ito , Morimitsu Tanimoto

This letter summarises the status of the global fit of the CKM parameters within the Standard Model performed by the CKMfitter group. Special attention is paid to the inputs for the CKM angles $\alpha$ and $\gamma$ and the status of…

We report several recent updates from the BABAR Collaboration on the matrix elements $|V_{cb}|$, $|V_{ub}|$, and $|V_{td}|$ of the Cabibbo-Kobayashi-Maskawa (CKM) quark-mixing matrix, and the angles $\beta$ and $\alpha$ of the unitarity…

High Energy Physics - Experiment · Physics 2010-04-21 Chih-hsiang Cheng

We give an overview of direct determinations of the angles of the unitarity triangle of the CKM matrix, using CP-violating effects in B-meson decays. After a discussion of B --> pi K modes, which can be described efficiently through allowed…

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

We review the present status of the CKM matrix and we offer some visions of its future. After a brief presentation of the theoretical framework for weak decays we discuss the following topics: i) CKM matrix from tree level decays, ii)…

High Energy Physics - Phenomenology · Physics 2007-05-23 Andrzej J. Buras

This talk gives an introduction to the Standard Model Cabibbo-Kobayashi-Maskawa matrix and methods to extract information on the parameters of the unitarity triangle from B decays.

High Energy Physics - Phenomenology · Physics 2007-05-23 Stefan W. Bosch

We give a review of the status of the global effort to measure the sides of the CKM Unitarity Triangle.

High Energy Physics - Experiment · Physics 2015-06-25 Giampiero Mancinelli

We present the update of the Unitarity Triangle (UT) analysis within the Standard Model (SM) and beyond. Within the SM, combining the direct measurements on sides and angles, the UT turns out to be overconstraint in a consistent way,…

High Energy Physics - Phenomenology · Physics 2010-02-25 Cecilia Tarantino

The aim of the paper is to propose one paradigm change of CKM global fits on experimental data from electroweak sector. The change refers to using in fits the exact unitarity constraints expressed in terms of four invariant parameters, such…

High Energy Physics - Phenomenology · Physics 2008-04-22 Petre Dita

Flavour physics represents a unique test bench for the Standard Model (SM). New analyses performed at the LHC experiments are now providing unprecedented insights into CKM metrology and new evidences for rare decays. The CKM picture can…

A shape of the unitary triangle versus a CP violating parameter \delta depends on the phase conventions of the CKM matrix, because the CP violating parameter \delta cannot directly be observed, so that it is not rephasing-invariant. In…

High Energy Physics - Phenomenology · Physics 2014-11-18 Yoshio Koide

In this letter, using a rephasing invariant formula $\delta = \arg [ { V_{ud} V_{us} V_{c b} V_{tb} / V_{ub} \det V_{\rm CKM} }]$, we evaluate the CP phase $\delta$ of the CKM matrix $V_{\rm CKM}$ perturbatively for small quark mixing…

High Energy Physics - Phenomenology · Physics 2026-02-03 Masaki J. S. Yang

We derive the one loop renormalization group equations for the Cabibbo-Kobayashi-Maskawa matrix for the Standard Model, its two Higgs extension and the minimal supersymmetric extension in a novel way. The derived equations depend only on a…

High Energy Physics - Theory · Physics 2008-12-30 P. Kielanowski , S. R. Juarez W. , J. H. Montes de Oca Y.

Motivated by the possibility of the low value of sin2\beta in the measurements of BABAR and BELLE collaborations, a reference unitarity triangle is constructed using the unitarity of the CKM matrix and the experimental values of the well…

High Energy Physics - Phenomenology · Physics 2007-05-23 Monika Randhawa , Manmohan Gupta

We discuss possible signatures of the tree level FCNC, which results from the non-unitarity of CKM matrix. We first define the unitaity step-by-step, and possible test of the non-unitaity through the 4-value-KM parametrization. We, then,…

High Energy Physics - Phenomenology · Physics 2008-12-18 C. S. Kim , Amol Dighe

In presenting an up-to-date account of the experimental knowledge of the CKM matrix, special emphasis is placed on the exceptional degree of consistency shown by the current Standard Model determination of the unitarity triangle; some…

High Energy Physics - Phenomenology · Physics 2010-11-23 Pietro Faccioli

The CKM matrix describing quark mixing with three generations can be parameterized by three mixing angles and one CP violating phase. In most of the parameterizations, the CP violating phase chosen is not a directly measurable quantity and…

High Energy Physics - Phenomenology · Physics 2015-06-04 Guan-Nan Li , Hsiu-Hsien Lin , Dong Xu , Xiao-Gang He

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

The CKM matrix describing quark mixing with three generations can be parameterized by three Euler mixing angles and one CP violating phase. In most of the parameterizations, the CP violating phase chosen is not a directly measurable…

High Energy Physics - Phenomenology · Physics 2015-06-12 Guan-Nan Li , Hsiu-Hsien Lin , Dong Xu , Xiao-Gang He

We estimate the CKM matrix elements in the recently proposed minimal model, anti-SU(7) GUT for the family unification, $[\,3\,]+2\,[\,2\,]+8\,[\,\bar{1}\,]$+\,(singlets). It is shown that the real angles of the right-handed unitary matrix…

High Energy Physics - Phenomenology · Physics 2015-08-25 Jihn E. Kim , Doh Young Mo , Min-Seok Seo