Author/Authors :
Francisco J. Botella، نويسنده , , Gustavo C. Branco، نويسنده , , Miguel Nebot، نويسنده ,
Abstract :
We analyse present constraints on the SM parameter space and derive, in a model independent way, various bounds on New Physics contributions to image and image mixings. Our analyses include information on a large set of asymmetries, leading to the measurement of the CKM phases γ and image, as well as recent data from D0 and CDF related to the image system such as the measurement of image, image and image. We examine in detail several observables such as the asymmetries image, image, the width differences image and image and discuss the rôle they play in establishing the limits on New Physics. The present data clearly favour the SM, with the New Physics favoured region placed around the SM solution. A New Physics solution significantly different from the SM is still allowed, albeit quite disfavoured (2.6% probability). We analyse the presently available indirect knowledge on the phase image entering in image mixing and study the impact of a future measurement of image to be achieved at LHC, through the measurement of the time-dependent CP asymmetry in image Φ decays.