Artigo
Anomalous couplings of the third generation in rare B decays
Registro en:
Physical Review D. College Pk: American Physical Soc, v. 61, n. 11, 9 p., 2000.
0556-2821
10.1103/PhysRevD.61.114016
WOS:000087284800038
2-s2.0-17044381290
Autor
Burdman, Gustavo
Gonzalez-Garcia, M. C. [UNESP]
Novaes, Sérgio Ferraz [UNESP]
Resumen
We study the potential effects of anomalous couplings of the third generation quarks to gauge bosons in rare B decays. We focus on the constraints from flavor changing neutral current processes such as b→sγ and b →sl+l-. We consider both dimension-four and dimension-five operators and show that the latter can give large deviations from the standard model in the still unobserved dilepton modes, even after the bounds from b→sγ and precision electroweak observables are taken into account. ©2000 The American Physical Society. Department of Physics University of Wisconsin, Madison, WI 53706 Inst. Fis. Corpuscular - IFIC/CSIC Dept. de Fis. Teòrica Universitat de València, 46100 Burjassot, València Inst. de Fis. Teórica Universidade Estadual Paulista, Rua Pamplona, 145, 01405-900 São Paulo Department of Physics Boston University, 590 Commonwealth Ave., Boston, MA 02215 Inst. de Fis. Teórica Universidade Estadual Paulista, Rua Pamplona, 145, 01405-900 São Paulo