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

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

2007-11-22

arxiv.org/abs/0711.3516v2

Phys.Lett.B660:376-381,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, 4 figures, version to appear in Phys. Lett. B

Scientific paper

10.1016/j.physletb.2008.01.009

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.

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