Bounds on new physics from Bₛ mixing
Nierste, Ulrich
Original · EN
I summarize the observables constraining the Bₛ-Bₛ-bar mixing complex and present a new calculation of the element Gamma₁₂ˢ of the decay matrix. Gamma₁₂ˢ enters the prediction of the width difference Delta Gammaₛ, for which we obtain Delta GammaₛˢM = 0.088 +/- 0.017 ps(-1), if no new physics enters Bₛ-Bₛ-bar mixing. Applying our formulae to Tevatron data we find a deviation of the Bₛ-Bₛ-bar mixing phase phiₛ from its Standard Model value by 2 standard deviations. I stress that present data do not give any information on the sign of Delta Gammaₛ.
English translation
This paper has no Arabic translation yet. Be the first: it takes a few seconds, and the result is stored for every future reader.