Search for New Physics in B Rare Decays at LHCb

TL;DR

This paper discusses the LHCb experiment's preparations for analyzing rare B meson decays, which are sensitive to new physics beyond the Standard Model, focusing on three specific decay channels and their expected sensitivities.

Contribution

It presents the analysis strategies and expected sensitivities for three promising rare B decay channels at LHCb, aiming to detect signs of new physics.

Findings

Preparation of analysis strategies for rare B decays

Expected sensitivities for decay measurements

Potential to observe new physics effects

Abstract

The LHCb experiment, bolstered up by the 10^12 b-hadrons to be produced yearly in its interaction region, is an excellent place to study rare B decays. Flavor-changing neutral currents are forbidden at tree level in the Standard Model. They proceed through loop diagrams and hence are indirectly sensitive to New Physics through the effect of new particles on observable quantities. In this paper, we present preparation studies of the three most promising B rare decay analyzes. These aim at the observation of the photon polarization in B_s to phi gamma, the measurement of the angular distribution of the B^0 to K* mu^+ mu^- decay, and the search for the yet unobserved B_s to mu^+ mu^- decay. The current analysis strategies and the expected sensitivities are presented.