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Related papers: Radiative Corrections to the CKM Unitarity Triangl…

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These lectures describe 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 framework, iii)…

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

Decays of b-hadrons are the ideal place to perform measurements of CP violation. Many decay channels allow to over-constrain the unitarity triangles of the CKM matrix and test the SM hypothesis that a single phase is the origin of all CP…

High Energy Physics - Experiment · Physics 2019-08-13 Luca Pescatore

The latest experimental progress have established three kinds of neutrino oscillations with three mixing angles measured to rather high precision. There is still one parameter, i.e., the CP violating phase, missing in the neutrino mixing…

High Energy Physics - Phenomenology · Physics 2012-06-22 Xinyi Zhang , Bo-Qiang Ma

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 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

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

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.

After listing basic properties of the Standard Model (SM) that play the crucial role in the field of flavour and CP violation, we discuss the following topics: 1) CKM matrix and the unitarity triangle. 2) Theoretical framework in a…

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

We point out that testing the equality of the Cabibbo angle as extracted from $\Gamma(K\rightarrow \pi l\nu)$, the ratio $\Gamma(K\rightarrow l\nu)/\Gamma(\pi\rightarrow l\nu)$ and nuclear $\beta$ decays is not identical to a test of first…

High Energy Physics - Phenomenology · Physics 2020-08-26 Yuval Grossman , Emilie Passemar , Stefan Schacht

It is pointed out that the recent measurement of the angle $\gamma$ of the unitarity triangle, providing irrefutable evidence for a complex Cabibbo-Kobayashi-Maskawa (CKM) matrix, presents a great challenge for supersymmetric models with…

High Energy Physics - Phenomenology · Physics 2010-04-05 G. C. Branco , D. Emmanuel-Costa , J. C. Romao

Some fine differences between the twin $b$-flavored unitarity triangles are calculated by means of a generalized Wolfenstein parametrization of the CKM matrix, and a possibility of experimentally establishing the second triangle is briefly…

High Energy Physics - Phenomenology · Physics 2020-10-07 Zhi-zhong Xing , Di Zhang

We propose a novel test to assess the unitarity of the Cabibbo-Kobayashi-Maskawa matrix, $V_{\rm CKM}$, at present and future collider experiments. Our strategy makes use of the $W^+W^-$ production cross section to directly probe the…

High Energy Physics - Phenomenology · Physics 2026-03-18 E. Gabrielli , L. Marzola , K. Müürsepp

The decay modes $B$ to $\pi\pi$, $\psi K_S$, $K^- D$, $\pi K$ and $\eta K$ are promising channels to study the unitarity triangle of the CP violating CKM matrix. In this paper I study the consequences of these measurements in the Weinberg…

High Energy Physics - Phenomenology · Physics 2009-10-28 Xiao-Gang He

Anticipating improved determinations of $m_t$, $|V_{cb}|$, $|V_{ub}/V_{cb}|$, $B_K$ and $F_B \sqrt{B_B}$ in the next five years we make an excursion into the future in order to find a possible picture of the unitarity triangle, of quark…

High Energy Physics - Phenomenology · Physics 2007-05-23 M. E. Lautenbacher

This article surveys the important questions attached to unitarity tests of the Cabibbo-Kobayashi-Maskawa matrix, with a focus on the direct determinations of the magnitude of CKM matrix elements. The current CKM anomalies are discussed and…

High Energy Physics - Experiment · Physics 2022-07-25 Alexander Lenz , Stephane Monteil

We point out that $R \equiv Br(b\rightarrow d \gamma)/Br(b\rightarrow s \gamma)$ is a sensitive probe of possible violation of CKM unitarity. We compute $R$ in a minimal extension of the Standard Model containing an additional isosinglet…

High Energy Physics - Phenomenology · Physics 2010-11-01 Gautam Bhattacharyya , Gustavo C. Branco , Debajyoti Choudhury

A new method for computing hadronic effects on electroweak radiative corrections to low-energy weak interaction semileptonic processes is described. It employs high order perturbative QCD results originally derived for the Bjorken sum rule…

High Energy Physics - Phenomenology · Physics 2009-11-11 William J. Marciano , Alberto Sirlin

A complete review of the Cabibbo-Kobayashi-Maskawa (CKM) matrix elements and of the experimental methods for their determination is presented. A critical analysis of the relevant experimental results, and in particular of the most recent…

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…

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
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