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Related papers: Simple Approach to Renormalize the Cabibbo-Kobayas…

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We present an explicit on-shell framework to renormalize the Cabibbo-Kobayashi-Maskawa (CKM) quark mixing matrix at the one-loop level. It is based on a novel procedure to separate the external-leg mixing corrections into gauge-independent…

High Energy Physics - Theory · Physics 2008-11-26 Bernd A. Kniehl , Alberto Sirlin

We present a gauge-independent quark mass counterterm for the on-shell renormalization of the Cabibbo-Kobayashi-Maskawa (CKM) matrix in the Standard Model that is directly expressed in terms of the Lorentz-invariant self-energy functions,…

High Energy Physics - Phenomenology · Physics 2009-11-19 Bernd A. Kniehl , Alberto Sirlin

We review two recently proposed on-shell schemes for the renormalization of the Cabibbo-Kobayashi-Maskawa (CKM) quark mixing matrix in the Standard Model. One first constructs gauge-independent mass counterterm matrices for the up- and…

High Energy Physics - Phenomenology · Physics 2010-01-15 B. A. Kniehl , A. Sirlin

It was recently pointed out that the on-shell renormalization of the Cabibbo-Kobayashi-Maskawa (CKM) matrix in the method by Denner and Sack causes a gauge parameter dependence of the amplitudes. We analyze the gauge dependence of the…

High Energy Physics - Phenomenology · Physics 2009-11-07 Youichi Yamada

Using the on-shell scheme and the general linear R_xi gauge we have calculated the one-loop amplitude W+ -> u_I d_j. In agreement with previous work we have shown that the Cabibbo-Kobayashi-Maskawa (CKM) matrix ought to be renormalized. We…

High Energy Physics - Phenomenology · Physics 2009-10-31 A. Barroso , L. Brucher , R. Santos

We have investigated the present renormalization prescriptions of Cabibbo-Kobayashi-Maskawa (CKM) matrix. When considering the prescription which is formulated with reference to the case of zero mixing we find it doesn't satisfy the unitary…

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

A simple inspection of the one loop quark self-energy suggests a prescription of the CKM matrix renormalization in the standard model. It leads to a CKM matrix counterterm which is gauge parameter independent and satisfies the unitarity…

High Energy Physics - Phenomenology · Physics 2009-11-10 Yi Liao

We have investigated the present renormalization prescriptions of the Cabibbo-Kobayashi-Maskawa (CKM) quark mixing matrix. Based on one prescription which is formulated by comparing with the fictitious case of no mixing of quark…

High Energy Physics - Phenomenology · Physics 2016-09-06 Yong Zhou

We calculate the partial decay widths of the W boson at one loop in the standard model using the on-shell renormalization scheme endowed with a gauge-independent definition of the Cabibbo-Kobayashi-Maskawa (CKM) mixing matrix. We work in…

High Energy Physics - Phenomenology · Physics 2009-10-31 B. A. Kniehl , F. Madricardo , M. Steinhauser

We have investigated the present renormalization prescriptions of Cabibbo-Kobayashi-Maskawa (CKM) matrix at one-loop level. We emphasize at one prescription which is formulated with reference to the case of no mixing of quark's generations…

High Energy Physics - Phenomenology · Physics 2015-06-25 Yong Zhou

We have investigated the present renormalization prescriptions of Cabibbo-Kobayashi-Maskawa (CKM) matrix, and found there is still not an integrated prescription to all loop levels. In this paper We propose a new prescription which is…

High Energy Physics - Phenomenology · Physics 2010-11-23 Yong Zhou

I discuss some general aspects of diagonalizing the quark mass matrices and list all possible parametrizations of the Cabibbo-Kobayashi-Maskawa matrix (CKM) in terms of three rotation angles and a phase. I systematically study the relation…

High Energy Physics - Phenomenology · Physics 2007-05-23 Andrija Rasin

By use of the one-loop renormalization group equations and current experimental data, we study the off-diagonal asymmetries of the Cabibbo-Kobayashi-Maskawa (CKM) matrix at the GUT scale in the framework of the standard model as well as its…

High Energy Physics - Phenomenology · Physics 2008-11-26 Zhi-zhong Xing

We generalize a recently proposed on-shell approach to renormalize the Cabibbo-Kobayashi-Maskawa quark-mixing matrix to the case of an extended leptonic sector that includes Dirac and Majorana neutrinos in the framework of the seesaw…

High Energy Physics - Phenomenology · Physics 2014-11-18 Andrea A. Almasy , Bernd A. Kniehl , 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…

We consider favourable extensions of the standard model (SM) where the lepton sector contains Majorana neutrinos with vanishing left-handed mass terms, thus allowing for the see-saw mechanism to operate, and propose physical on-mass-shell…

High Energy Physics - Phenomenology · Physics 2009-11-07 K. -P. O. Diener , B. A. Kniehl

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

We present here the most important ideas, equations and solutions for the running of all the quark Yukawa couplings and all the elements of the Cabibbo-Kobayashi-Maskawa matrix, in the approximation of one loop, and up to order $\lambda…

High Energy Physics - Phenomenology · Physics 2010-11-23 P. Kielanowski , S. R. Juarez W

The paper is devoted to a discussion of general properties of the Cabibbo-Kobayashi-Maskawa (CKM) matrix. First we propose a general method of a recursive construction of the CKM matrix for any number of generations. This allows to set up a…

High Energy Physics - Phenomenology · Physics 2015-02-13 Hilario Pérez , P. Kielanowski , S. R. Juárez W

We report on an explicit on-shell framework to renormalize the fermion-flavour mixing matrices in the Standard Model and its extensions, at one-loop level. It is based on a novel procedure to separate the external-leg mixing corrections…

High Energy Physics - Phenomenology · Physics 2010-01-27 Andrea A. Almasy
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