Double-lepton polarization asymmetries and branching ratio in B → K 0 * (1430)l + l − transition from universal extra dimension model

Abstract

We investigate the B → K * 0 (1430)l + l − transition in the Applequist-Cheng-Dobrescu model in the presence of a universal extra dimension. In particular, we calculate double lepton polarization asymmetries and branching ratio related to this channel and compare the obtained results with the predictions of the standard model. Our analysis of the considered observables in terms of radius R of the compactified extra-dimension as the new parameter of the model show a considerable discrepancy between the predictions of two models in low

B to strange tensor meson transition in a model with one universal extra dimension

“…This discrepancy exists and can not be killed even if the uncertainties of the form factors are taken into account. These results together with the other evidences for deviation of the ACD model predictions from those of the SM obtained by investigation of many observables related to the B and Λ b channels in [10,11,[17][18][19][20][21][22][23][24][25][26][27][33][34][35][36], can be considered as a sign for the existence of Kaluza-Klein particles and extra dimensions in the nature which should we search for at the LHC.…”

Double-lepton polarization asymmetries and branching ratio of the B → γl + l − transition in universal extradimension

“…The ACD model has been previously applied to many rare semileptonic decay channels [8][9][10][11][12][13][14][15][16][17]. In the present work, we apply this model to analyze the branching ratio and double lepton polarization asymmetries defining the radiative dileptonic B → γl + l − transition.…”

Polarized and unpolarized lepton pair forward–backward asymmetries in $$\overline{B}\rightarrow \overline{K}_{0}^{*}(1430) \ell ^+\ell ^-$$ B ¯ → K ¯ 0 ∗ ( 1430 ) ℓ + ℓ - and $$\overline{B}\rightarrow \overline{K} \ell ^+\ell ^-$$ B ¯ → K ¯ ℓ + ℓ - decays in two-Higgs-doublet model

“…These decays are thora e-mail: falahati@shirazu.ac.ir oughly investigated in the SM in [18,19] and the related transition form factors are formulated within the framework of light front quark model [19][20][21] and QCD sum rules method [22,23], respectively. Lately these rare decays have been the matter of various physical discussions in the frame work of some new physics models, such as models including universal extra dimension [24], supersymmetry particles [25], and the fourth-generation fermions [26]. Generally, by studying the physical observables of these decay modes there would be a chance for testing SM or probing possible NP models.…”