Unparticle physics on direct CP violation

Details Unparticle physics on direct CP violation Unparticle physics on direct CP violation

2007-05-04

arxiv.org/abs/0705.0689v4

Phys.Rev.D76:115003,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 3 figures, paper revised, references added, new T-odd observables are introduced, published version

Scientific paper

10.1103/PhysRevD.76.115003

The effects of the peculiar CP conserving phases in unparticle propagators are explored. We find that the phases have a great impact on CP-violation. We adopt the decays $B_{d}\to \pi^{+} \pi^{-}$ and $B_{d}\to \ell^{-}\ell^{+}$ as the illustrators to demonstrate the influences of these phases on the direct CP asymmetries. In particular, we emphasize that unparticle physics is the only model suggested to date that could give the direct CP asymmetries in $B_d\to \ell^{-} \ell^{+}$ as large as 15%. We also point out that the unparticle phases could be probed in $B\to K^* \ell^{+} \ell^{-}$ decays by using T-odd correlations.

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