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

Abstract

We investigate the effect of unparticles in the pure $b\to d$ penguin processes $B^0\to K^0{\bar{K}}^0$ and $B^{+,0}\to \varphi {\pi }^{+,0}$. 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.

arXiv comment12 pages, 4 figures, version to appear in Phys. Lett. B

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• The large CP phase in B(s) - anti-B(s) mixing and Unparticle Physics
• Signature of new physics in B -> phi pi decay
• Unparticle Effects on Unitarity Constraints from Higgs Boson Scattering
• Unparticle contributions to $\Bs$-$\Bsbar$ mixing
• Constraining Unparticles from Top Physics at TeVatron
• Protecting unparticles from the MSSM Higgs sector
• Constraints on Unparticles from $B_s\to {\mu }^{+}{\mu }^{-}$
• The large CP phase in B(s)-anti-B(s) mixing from primary scalar unparticles
• Unparticle effects in rare (t -> c g g) decay
• $R(K^{(\ast )})$ with vector unparticles
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