B \to K(K^*) missing energy in Unparticle physics

TL;DR

This paper investigates how unparticle physics could explain missing energy signals in B meson decays, showing distinctive energy distributions and setting new constraints on unparticle parameters.

Contribution

It introduces the effects of vector unparticles on B decay missing energy signatures and derives tighter bounds on unparticle parameters using experimental data.

Findings

Differential branching ratios depend uniquely on meson energy with unparticles.

Unparticle effects produce distinctive energy distribution patterns.

Stronger constraints on unparticle parameters are obtained from decay data.

Abstract

In the present work we study the effects of an unparticle $\unpart$ as the possible source of missing energy in the decay $B \to K (K^*) + {\rm missing energy}$. We find that the dependence of the differential branching ratio on the $K$($K^*$)-meson's energy in the presence of the vector unparticle operators is very distinctive from that of the SM. Moreover, in using the existing upper bound on $B \to K (K^*) + {\rm missing energy}$ decays, we have been able to put more stringent constraints on the parameters of unparticle stuff.