| Resumenes Vol. 38 No.3 de 2006 |
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| FCNC AND RARE B DECAYS IN 331 MODELS |
| R. Martínez , J.-Alexis Rodriguez and Marc Sher |
Consideramos cambios de sabor en modelos 331 en la diferencia de masa P − P con
P = (K,D,B,Bs), además los decaimientos B ! Kl+l−, B ! µ+µ− y Bs ! µ+µ−.
Palabras claves: modelos 331,sabor,leptones, neutrinos
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An interesting extension of the Standard Model is based on the electroweak gauge group
SU(3)L × U(1). We consider flavor-changing neutral currents in these models, concentrating
on the P − P mass diference, where P = (K,D,B,Bs), as well as B ! Kl+l−,
B ! µ+µ− and Bs ! µ+µ− decays. We nd that the strongest bounds come from the
B − B and Bs − Bs mass dierence.
Keywords: 331 models, avor,leptons,neutrinos |
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