New Physics constraints from optimized observables in B -> K*ll at large recoil

TL;DR

This paper discusses the importance of optimized, theoretically clean observables in B -> K*ll decays for detecting New Physics, emphasizing their role in precise, model-independent global analyses.

Contribution

It highlights the significance of using optimized observables in small bins for improved sensitivity to New Physics in b->s transitions.

Findings

Clean observables enhance the sensitivity of global analyses.

Small binning improves the precision of measurements.

Optimized observables are crucial for future experimental analyses.

Abstract

B -> K*ll angular observables have become a key ingredient in global model-independent analyses of b->s transitions. However, as experimental precision improves, the use of theoretically clean quantities becomes a crucial issue. Global analyses that use clean observables integrated in small bins are already a reality, opening up a new chapter in our quest for New Physics.