Searching for New Physics in Non-Leptonic B Decays

TL;DR

This paper defines the expected ranges of observables in certain non-leptonic B-meson decays within the Standard Model, proposing that deviations in future measurements could signal new physics beyond current theories.

Contribution

It provides predicted observable regions for specific B-meson decay modes using SU(3) symmetry, aiding the search for physics beyond the Standard Model.

Findings

Allowed regions for B→πK decays within the Standard Model

Predicted ranges for B_d→π+π− and B_s→K+K− decay observables

Framework to identify potential signs of new physics in future measurements

Abstract

We present allowed regions in the space of observables of certain non-leptonic B-meson decays that characterize these modes within the Standard Model. A future measurement of observables lying significantly outside of these regions would indicate the presence of new physics. Making use of SU(3) arguments, we give the range for $B\to\pi K$ decays, and for the system of $B_d\to\pi^+\pi^-$, $B_s\to K^+K^-$ modes.