Abstract
In this work we will study the longitudinal polarisations of both leptons in the decay process \({\bar{B}} \to {\bar{K}}_{2}(1430) \ell^{+} \ell^{-}\). This process has all the features of the related and well investigated process \({\bar{B}} \to {\bar{K}}^{*}(890) \ell^{+} \ell^{-}\), with theoretically comparable branching ratios. The polarised differential decay rates as well as the single and double polarisation asymmetries are worked out, where the sensitivity of these to possible right-handed couplings for the related b→s radiative decay (and other BSM parameters) are also investigated.
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Choudhury, S.R., Cornell, A.S. & Roussos, J.D. Analysis of the lepton polarisation asymmetries of \({\bar{B}} \to {\bar{K}}_{2}(1430) \ell^{+} \ell^{-}\) decay. Eur. Phys. J. C 71, 1751 (2011). https://doi.org/10.1140/epjc/s10052-011-1751-x
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DOI: https://doi.org/10.1140/epjc/s10052-011-1751-x