Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2008-03-03
Eur.Phys.J.C56:267-277,2008
Physics
High Energy Physics
High Energy Physics - Phenomenology
19 pages, 6 figures
Scientific paper
10.1140/epjc/s10052-008-0643-1
Decay rate, forward-backward asymmetry and polarization asymmetries of final state leptons in B-> K_{1}tau ^{+}tau ^{-}, where K_{1} is the axial vector meson, are calculated in Standard Model and in the universal extra dimension (UED) model. The sensitivity of the observables on the compactification radius $R$, the only unknown paramter in UED model, is studied. Finally, the helicity fractions of the final state K_{1} are calculated and their dependence on the compactification radius is discussed. This analysis of helicity fraction is briefly extended to B->K^{*}l ^{+}l ^{-}(l =e,mu) and compared with the other approaches exist in the literature
Aslam Jamil M.
Lu Cai-Dian
Saddique Asif
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