(B -> K_2 l^+ l^-) decay beyond the Standard Model

TL;DR

This paper investigates the (B -> K_2 l^+ l^-) decay using a model-independent approach to identify potential signals of new physics beyond the Standard Model through various decay observables.

Contribution

It introduces a comprehensive analysis of the decay's polarization and asymmetry observables to probe new physics effects in a model-independent framework.

Findings

Decay observables are highly sensitive to new Wilson coefficients.

Certain polarization ratios can effectively distinguish beyond Standard Model physics.

The study highlights the importance of polarization measurements in new physics searches.

Abstract

The exclusive (B -> K_2 l^+ l^-) decay is studied using the most general, model independent four-fermion interaction. The sensitivity of the ratio of the decay widths when K_2 meson is longitudinally and transversally polarized, the forward-backward asymmetry and longitudinal polarization of the final lepton on the new Wilson coefficients is studied. It is found that these quantities are very useful for establishing new physics beyond the Standard Model.