Investigation of the Lambda(b) -> Lambda l(+)l(-) transition in universal extra dimension using form factors from full QCD
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KünyeAZİZİ, K., KATIRCI, N. (2011). Investigation of the Lambda(b) -> Lambda l(+)l(-) transition in universal extra dimension using form factors from full QCD. Journal of High Energy Physics, pp. 1-21. http://dx.doi.org/10.1007/JHEP01(2011)087
Using the related form factors from full QCD which recently are available, we provide a comprehensive analysis of the Lambda b -> Lambda l(+)l(-) transition in universal extra dimension model in the presence of a single universal extra dimension called the Applequist-Cheng-Dobrescu model. In particular, we analyze some related observables like branching ratio, forward-backward asymmetry, double lepton polarization asymmetries and polarization of the Lambda baryon in terms of compactification radius and corresponding form factors. We present the sensitivity of these observables to the compactification parameter, 1/R up to 1/R = 1000GeV. We also compare the results with those obtained using the form factors from heavy quark effective theory as well as the SM predictions.