Eur. Phys. J. C (2006) 48: 117-123
https://doi.org/10.1140/epjc/s2006-02593-7

Theoretical Physics

Possible manifestation of new scalar interaction in P-odd asymmetries in Λ_b→Λτ⁺τ^- decay

Physics Department, Middle East Technical University, 06531, Ankara, Turkey

^* e-mail: savci@verdi.physics.metu.edu.tr

Received: 16 May 2006
Revised: 23 May 2006
Published online: 21 July 2006

Abstract

Using the helicity amplitude method and including a new scalar type interaction in the matrix element of the exclusive semileptonic Λ_b→Λτ⁺τ^- decay, P-odd asymmetries with polarized and unpolarized heavy baryons are investigated. The result is obtained that the study of P-odd asymmetries can be promising for establishing the new scalar sector beyond the SM.