Physics potential of the decays Bs;d -> J/psi eta and Bs -> J/psi phi in the ATLAS experiment at the LHC

Abstract

The CP asymmetry predicted by the Standard Model in the decay modes Bs;d -> J/psi eta and Bs -> J/psi phi is very small, and the observation of a sizeable e ect would be a clear indication of new physics beyond the Standard Model. Contrary to the final state J/psi phi, the former final state is a CP eigenstate, and therefore complex angular distribution analyses are not necessary for the asymmetry measurement. In this paper, the approaches for the study of these two decay channels are presented.

arXiv comment4 pages, 3 figures, Workshop on the CKM Unitarity Triangle, IPPP Durham, April 2003