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Titolo:
USING B-S(0) DECAYS TO DETERMINE THE CP ANGLE-ALPHA AND ANGLE-GAMMA
Autore:
KIM CS; LONDON D; YOSHIKAWA T;
Indirizzi:
YONSEI UNIV,DEPT PHYS SEOUL 120749 SOUTH KOREA UNIV MONTREAL,PHYS NUCL LAB MONTREAL PQ H3C 3J7 CANADA KEK,THEORY GRP IBARAKI OSAKA 305 JAPAN
Titolo Testata:
Physical review. D. Particles and fields
fascicolo: 7, volume: 57, anno: 1998,
pagine: 4010 - 4024
SICI:
0556-2821(1998)57:7<4010:UBDTDT>2.0.ZU;2-4
Fonte:
ISI
Lingua:
ENG
Soggetto:
B-DECAYS; ELECTROWEAK PENGUIN; UNITARITY TRIANGLE; CHARGED PIONS; WEAK PHASES; VIOLATION; ASYMMETRIES; MESONS; PSEUDOSCALARS; STANDARD;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
40
Recensione:
Indirizzi per estratti:
Citazione:
C.S. Kim et al., "USING B-S(0) DECAYS TO DETERMINE THE CP ANGLE-ALPHA AND ANGLE-GAMMA", Physical review. D. Particles and fields, 57(7), 1998, pp. 4010-4024

Abstract

Dighe, Gronau, and Rosner have shown that, by assuming SU(3) flavor symmetry and first-order SU(3) breaking, it is possible to extract the CP angles alpha and gamma from measurements of the decay rates of B-d(0)(t)-->pi(+)pi(-), B-d(0)-->pi(-)K(+), and B+-->pi(+)K(0), along withtheir charge-conjugate processes. We extend their analysis to includethe SU(3)-related decays B-s(0)-->pi(+)K(-), B-s(0)(t)-->K+K-, and B-s(0)-->K-0 (K) over bar(0). There are several advantages to this extension: discrete ambiguities are removed, fewer assumptions are necessary, and the method works even if all strong phases vanish. In addition,we show that gamma can be obtained cleanly, with no penguin contamination, by using the two decays B-s(0)(t)-->K+K- and B-s(0)-->K-0 (K) over bar(0). [S0556-2821(98)01707-X].

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Documento generato il 05/04/20 alle ore 03:53:41