Probing the unparticle signal in $b \to d $ penguin processes

TL;DR

This paper explores how unparticles could induce observable CP violation in rare $b o d$ penguin decays, which are otherwise expected to have negligible CP asymmetry in the Standard Model.

Contribution

It introduces the potential impact of unparticles on CP violation in specific $b o d$ penguin processes, highlighting a new avenue for detecting unparticle effects.

Findings

Unparticles can generate sizable CP violation in $B^0 o K^0 \bar K^0$ and $B^{+,0} \to \phi \pi^{+,0}$ decays.

Standard Model predicts near-zero CP asymmetry for these processes, making deviations a clear signal.

Unparticle effects could be experimentally observable in future B-meson decay measurements.

Abstract

We investigate the effect of unparticles in the pure $ b \to d $ penguin processes $ B^0 \to K^0 \bar K^0$ and $B^{+,0} \to \phi \pi^{+,0} $. Since these processes receive dominant contributions due to the {\it top} quark in the loop, direct and mixing-induced CP asymmetry parameters in these processes are expected to be vanishingly small in the standard model. We find that due to the unparticle effect sizable nonzero CP violation could be possible in these channels.