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Titolo:
CP violating phase and quark mixing angles from flavour permutational symmetry breaking
Autore:
Mondragon, A; Rodriguez-Jauregui, E;
Indirizzi:
Univ Nacl Autonoma Mexico, Inst Fis, Mexico City 01000, DF, Mexico Univ Nacl Autonoma Mexico Mexico City DF Mexico 01000 y 01000, DF, Mexico
Titolo Testata:
REVISTA MEXICANA DE FISICA
, volume: 46, anno: 2000, supplemento:, 1
pagine: 5 - 22
SICI:
0035-001X(200009)46:<5:CVPAQM>2.0.ZU;2-R
Fonte:
ISI
Lingua:
ENG
Soggetto:
MASS MATRICES; UNIVERSAL STRENGTH; YUKAWA COUPLINGS; UNITARITY TRIANGLE; WEAK-INTERACTION; STANDARD MODEL; CABIBBO ANGLE; CKM MATRIX; HIERARCHY; PARAMETRIZATION;
Keywords:
spontaneous symmetry breaking; unified field theories; Hermitian matrices; quark mass;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
45
Recensione:
Indirizzi per estratti:
Indirizzo: Mondragon, A Univ Nacl Autonoma Mexico, Inst Fis, Apartado Postal 20364, Mexico City 01000, DF, Mexico Univ Nacl Autonoma Mexico Apartado Postal 20364 Mexico City DF Mexico 01000
Citazione:
A. Mondragon e E. Rodriguez-Jauregui, "CP violating phase and quark mixing angles from flavour permutational symmetry breaking", REV MEX FIS, 46, 2000, pp. 5-22

Abstract

The phase equivalence of the theoretical quark mixing matrix V-th derived from the breaking of the flavour permutational symmetry and the phenomenological parametrizations V-PDG and V-KM is explicitly exhibited. From here, we derive exact explicit expressions for the three mixing angles and the CP violating phase of the two phenomenological parametrizations in terms of the quark mass ratios (m(u)/m(t),m(c)/m(t),m(d)/m(b),m(s)/ m(b))and the parameters Z*(1/2) and Phi* characterizing the preferred symmetry breaking pattern. The computed values for the CP violating phase and the mixing angles ofthe standard parametrization advocated by the Particle Data Group are delta*(13 =) 73.2 degrees, sin theta*(12) = 0.222, sin theta*(13) = 0.0036, andsin theta*(23) = 0.040. The computed values of the CP-violating phase and the mixing angles of the Kobayashi-Maskawa parametrization are delta*(KM) =96.4 degrees, sin theta*(1) = 0.2225, sin theta*(2) = 0.0384, and sin theta*(3) = 0.0162. In both cases, the numerical values of the mixing angles and CP-violating phase computed from quark masses and the flavour symmetry breaking parameters coincide almost exactly with the central values of the same parameters obtained from a fit to experimental data.

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Documento generato il 07/04/20 alle ore 21:55:18