Constraining new physics contributions to the width difference in the B_s system

Wednesday, October 27th, 14:30hs - Seminar room

Speaker: Christian Bauer  (LBL, Berkeley)

Abstract:

The recent measurement of the di-muon asymmetry by the D0 collaboration is in excess of the SM prediction by 3.2 sigma. In this talk I will discuss the implementation of this measurement, and show that the central value is in violation with the SM prediction for the off-diagonal term in the decay matrix

(usually called Gamma_12) of B_s mesons, and can not be explained by a phase alone. I will then discuss experimental constraints from B decays on new physics contributions to the magnitude of Gamma_12, and argue that the new physics has to have very special properties to be allowed by these constraints.

 

 

Utilitzem cookies pròpies i de tercers per a millorar els nostres serveis mitjançant l’anàlisi dels seus hàbits de navegació. Si continua navegant, considerem que n’accepta el seu ús. Pot canviar la configuració o obtenir més informació a la nostra "política de Cookies".

Accepto les cookies d'aquest lloc.