Using the SIMUB Generator
نویسندگان
چکیده
The performance of the method of angular moments on the ∆Γs determination from analysis of untagged decays B s (t), B 0 s(t) → J/ψ(→ l+l−)φ(→ KK) is examined by using the SIMUB generator. The results of Monte Carlo studies with evaluation of measurement errors are presented. The method of angular moments gives stable results for the estimate of ∆Γs and is found to be an efficient and flexible tool for the quantitative investigation of the B s → J/ψ φ decay. The statistical error of the ratio ∆Γs/Γs for values of this ratio in the interval [0.03, 0.3] was found to be independent on this value, being 0.015 for 10 events. PACS: 02.70.Tt; 02.70.Uu; 07.05.Tp; 13.25.Hw
منابع مشابه
arXiv : hep - ph / 0501207 v 1 22 Jan 2005
C++ package BtoVVana is aimed to extract physics parameters in decays of the scalar neutral B-meson to two vector particles in the intermediate state, and two leptons and two pseudoscalar mesons in the final state. Improved angular moments method is implemented in the package BtoVVana: the method uses the time dependent weighting functions and time-integrated observables with variable upper tim...
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