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Titolo:
CP VIOLATION AND FLAVOR MIXING IN THE STANDARD MODEL
Autore:
ALI A; LONDON D;
Indirizzi:
DESY,NOTKESTR 85 D-2000 HAMBURG GERMANY UNIV MONTREAL,PHYS NUCL LAB MONTREAL PQ H3C 3J7 CANADA
Titolo Testata:
Nuovo cimento della Società Italiana di Fisica. A. Nuclei, particles and fields
fascicolo: 6-7, volume: 109, anno: 1996,
pagine: 957 - 979
SICI:
1124-1861(1996)109:6-7<957:CVAFMI>2.0.ZU;2-Z
Fonte:
ISI
Lingua:
ENG
Soggetto:
TOP-QUARK PRODUCTION; KAON B-PARAMETER; CB-VERTICAL-BAR; ELECTROWEAK PENGUIN; LEADING LOGARITHMS; (P)OVER-BAR-P COLLISIONS; INDEPENDENT EXTRACTION; UNITARITY TRIANGLE; RADIATIVE DECAYS; QCD CORRECTIONS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
88
Recensione:
Indirizzi per estratti:
Citazione:
A. Ali e D. London, "CP VIOLATION AND FLAVOR MIXING IN THE STANDARD MODEL", Nuovo cimento della Società Italiana di Fisica. A. Nuclei, particles and fields, 109(6-7), 1996, pp. 957-979

Abstract

We review and update the constraints on the parameters of the quark flavour mixing matrix V-CKM in the Standard Model and estimate the resulting CP asymmetries in B decays, taking into account recent experimental and theoretical developments. In performing our fits, we use inputs from the measurements of the following quantities: i) \epsilon\, theCP-violating parameter in K decays, ii) Delta M(d), the mass difference due to the B-d(0)-(B) over bar(d)(0) mixing, iii) the matrix elements \V-eb\ and \V-ub\, iv) B-hadron lifetimes, and v) the top-quark mass. The experimental input in points ii)-v) has improved compared to our previous fits. With the updated CKM matrix we present the currently-allowed range of the ratios \V-td/V-ts\ and \V-td/V-ub\, as well as the Standard Model predictions for the B-s(0)-(B) over bar(s)(0) mixing parameter x(s) (or, equivalently, Delta M(s)) and the quantities sin2 alpha, sin2 beta and sin(2) gamma, which characterize the CP-asymmetries in B decays. Various theoretical issues related to the so-called <<penguin-pollution>>, which are of importance for the determination of the phases a and gamma from the CP-asymmetries in B decays, are also discussed.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/03/20 alle ore 11:48:36