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Possible signatures of unparticles in rare annihilation type B decays

Jul, 2007
9 pages
Published in:
  • Phys.Rev.D 76 (2007) 057701
e-Print:
DOI:
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Abstract: (arXiv)
We investigate the effect of unparticles in the pure annihilation type decays B−→Ds−ϕB^- \to D_s^-\phi and Ds−K∗0 D_s^- K^{*0}. Since these decays have only annihilation contributions their branching ratios are expected to be very small in the standard model and the direct CP asymmetry parameters as zero. We find that due to the unparticle effect these branching ratios can be significantly enhanced from their standard model values. Furthermore, sizable nonzero direct CP asymmetry can also be observable in these channels due to the presence of intrinsic CP conserving phase in the unparticle propagator.
  • 14.80.-j
  • 11.30.Er
  • 13.25.Hw
  • B-: hadronic decay
  • B-: rare decay
  • B-: branching ratio
  • unparticle
  • amplitude analysis: annihilation
  • CP: violation
  • numerical calculations
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