Study ofBc→Ds*ℓ+ℓ−in a single universal extra dimension

Abstract

The rare semileptonic Bc → D * s ℓ + ℓ − decay is studied in the scenario of the universal extra dimension model with a single extra dimension in which inverse of the compactification radius R is the only new parameter. The sensitivity of differential branching ratio, total branching ratio, polarization and forward-backward asymmetries of final state leptons, both for muon and tau, to the compactification parameter is presented. For some physical observables uncertainty on the form factors and resonance contributions have been considered in the calculations. Obtained results, compared with the available data, show that there appear new contributions due to the extra dimension. *

Effects of a Single Universal Extra Dimension in Bc→Ds,DlYilmaz1, Danapinar2 2018Advances in High Energy PhysicsSelf Cite0000View full textAdd to dashboardCite

“…While doing this, to minimize the hadronic uncertainties, we introduce some cuts around / and (2 ) resonances as discussed in [17].…”

“…The experimental and theoretical discussions on the free parameter have been taken a significant part in the literature and the lower bound was commonly taken as 1/ ≥ 250 or 1/ ≥ 350 [13][14][15][16][17]. An analysis of the electroweak precision tests with inclusive [18] and exclusive [19] rare radiative B decays is conducted, where the later one also includes the experimental results of → ( * ) ℓ + ℓ − and the lower bound is estimated as 1/ > 600…”

“…The effective Hamiltonian of several FCNC processes [23,24], semileptonic and radiative decays of B mesons [25][26][27][28][29][30][31][32][33], and FCNC baryonic decays [34][35][36] have been investigated in the ACD model. Polarization properties of final state particles in semileptonic decays, which is an powerful tool in searching new physics beyond the SM, have also been studied widely besides the other observables in these works, e.g., [17,25,29,33].…”

Effects of a Single Universal Extra Dimension in $B_c \rightarrow (D_{s},D) \,\ell^+ \ell^-$ Decays

“…The experimental and theoretical discussions on the free parameter have been taken a significant part in the literature and the lower bound was commonly taken as 1/R ≥ 250 GeV or 1/R ≥ 350 GeV [6]- [12]. However, later analysis using the ATLAS and CMS data, the bounds increased and in some analysis [13]- [14] 1/R < (700−715) GeV is excluded.…”

“…The effective Hamiltonian of several FCNC processes [16]- [17], semileptonic and radiative decays of B mesons [18]- [26] and FCNC baryonic decays [27]- [29] have been investigated in the ACD model. Polarization properties of final state particles in semileptonic decays, which is an powerful tool in searching new physics beyond the SM, have also been studied widely besides the other observables in these works, e.g [12,18,22,26].…”