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Titolo:
The light quark sector, CP violation, and the unitarity triangle
Autore:
Fritzsch, H; Xing, ZZ;
Indirizzi:
Univ Munich, Sekt Phys, D-80333 Munich, Germany Univ Munich Munich Germany D-80333 h, Sekt Phys, D-80333 Munich, Germany
Titolo Testata:
NUCLEAR PHYSICS B
fascicolo: 1-2, volume: 556, anno: 1999,
pagine: 49 - 75
SICI:
0550-3213(19990906)556:1-2<49:TLQSCV>2.0.ZU;2-M
Fonte:
ISI
Lingua:
ENG
Soggetto:
LEPTON MASS HIERARCHY; SYMMETRY-BREAKING; UNIVERSAL STRENGTH; YUKAWA COUPLINGS; WEAK-INTERACTION; FERMION MASSES; CABIBBO ANGLES; MATRICES; PARAMETRIZATION; DEMOCRACY;
Keywords:
quark mass matrices; CP violation; flavor mixing; unitarity triangle;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
65
Recensione:
Indirizzi per estratti:
Indirizzo: Fritzsch, H Univ Munich, Sekt Phys, Theresienstr 37A, D-80333 Munich, Germany Univ Munich Theresienstr 37A Munich Germany D-80333 , Germany
Citazione:
H. Fritzsch e Z.Z. Xing, "The light quark sector, CP violation, and the unitarity triangle", NUCL PHYS B, 556(1-2), 1999, pp. 49-75

Abstract

In view of the observed strong hierarchy of quark masses, we propose a newdescription of flavor mixing which is particularly suited for models of quark mass matrices based on flavor symmetries. The necessary and sufficient conditions for CP violation are clarified. The emergence of CP violation isprimarily linked to a large phase difference (near 90 degrees) in the light quark sector. The unitarity triangle is determined by the mass ratios of the light quarks. We conclude that the unitarity triangle should be close or identical to a rectangular triangle, and CP violation is maximal in this sense. Instructive predictions for flavor mixing angles and CP-violating parameters, which can directly be confronted with the forthcoming data from B-meson factories, are obtained from a specific texture of quark mass matrices. (C) 1999 Elsevier Science B.V. All rights reserved.

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Documento generato il 03/04/20 alle ore 20:24:44