Eur. Phys. J. C (2007) 51: 63-74
https://doi.org/10.1140/epjc/s10052-007-0306-7

Regular Article - Theoretical Physics

General analysis of the rare B_c→D_s ^*ℓ⁺ℓ^- decay beyond the standard model

¹ Physics Department, Mersin University, 33343, Ciftlikkoy Mersin, Turkey
² Physics Department, Middle East Technical University, 06531, Ankara, Turkey

^* e-mail: uoyilmaz@mersin.edu.tr

Received: 22 January 2007
Revised: 21 March 2007
Published online: 1 June 2007

Abstract

The general analysis of the rare B_c→D_s ^*ℓ⁺ℓ^- decay is presented by using the most general, model independent effective Hamiltonian. The dependencies of the branching ratios and of the longitudinal, normal and transversal polarization asymmetries for ℓ^- and the combined asymmetries for ℓ^- and ℓ⁺ on the new Wilson coefficients are investigated. Our analysis shows that the lepton polarization asymmetries are very sensitive to the scalar and tensor type interactions, which will be very useful in looking for new physics beyond the standard model.