2D mass-IP fits in Semileptonic Decays of Neutral B-Mesons at LHCb
MC and data-based study of the features of the logIP and D-mass distributions of semileptonic decays at LHCb, extracting the detached-to-prompt contributions in the 2010 data sample
There are several new features which reduce the usability of this study, but it is still interesting as a general overview.
There is a factor of two missing in some of the Afs equations. This was fixed in the latest afs presentations.
It has been shown that the production asymmetry does not matter for Afs^s, by Stone et al, since it is washed out by the fast oscillations.
Cross-talk backgrounds of D+ and Ds from other B-decays were not considered at that time
A single resolution was assumed, we now know the resolution depends heavily on the proper time
Since the k-factor depends on the Dmu mass, we cannot fit simultaneously in time and Dmu mass without having a Punzi term, maybe 2D. We have abandoned that approach, instead we fit 2D in KKpi and proper time, which means some of the B-peaking backgrounds are not fit explicitly, they are simply part of the signal fit
CERN-THESIS-2008-045: Paul Szczypka
Study of the Sensitivity to Flavour-Specific Asymmetries with the LHCb Detector
Sensitivity study for Afs for Bs->!DsPi using a toy-MC based on DC04