Exclusive B-> K_{1}l ^{+}l ^{-} decay in model with single universal extra dimension

TL;DR

This paper investigates the decay B -> K1 l+ l- within the universal extra dimension model, analyzing how decay rates and asymmetries depend on the model's compactification radius, highlighting potential signals of new physics.

Contribution

It introduces the calculation of decay rates and asymmetries in B -> K1 l+ l- within the UED model, emphasizing the sensitivity of forward-backward asymmetry zero to extra dimension effects.

Findings

Forward-backward asymmetry zero is sensitive to the UED model.

Decay rates depend on the compactification radius R.

Potential to use asymmetry measurements to detect new physics.

Abstract

Decay rate and forward-backward asymmetries in B -> K_{1} l^{+} l ^{-}, K_{1} is the axial vector meson, are calculated in the universal extra dimension (UED) model. The dependence of these physical quantities on the compactification radius $R$, the only unknown parameter in UED model, is studied and it is shown that zero of forward-backward asymmetry is sensitive to the UED model, therefore they can be very useful tool to establish new physics predicted by the UED model. This work is briefly extended to B -> K^{*}l^{+}l^{-}.