Model-independent constraints on new physics in b --> s transitions

TL;DR

This paper conducts a comprehensive, model-independent analysis of rare b --> s decays, constraining effective operators using current experimental data and exploring future measurement prospects.

Contribution

It provides updated, generalized constraints on new physics operators in b --> s transitions, serving as a tool to test theories beyond the Standard Model.

Findings

Constraints on dimension-six operators derived from experimental data.

Implications for future measurements in b --> s l+l- and b --> s nu nu decays.

A framework for testing flavor structure in new physics models.

Abstract

We provide a comprehensive model-independent analysis of rare decays involving the b --> s transition to put constraints on dimension-six Delta(F)=1 effective operators. The constraints are derived from all the available up-to-date experimental data from the B-factories, CDF and LHCb. The implications and future prospects for observables in b --> s l+l- and b --> s nu nu transitions in view of improved measurements are also investigated. The present work updates and generalises previous studies providing, at the same time, a useful tool to test the flavour structure of any theory beyond the SM.