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\(B^0 \to \phi\phi\) decay in perturbative QCD approach

  • Cai-Dian Lü
  • Yue-long Shen
  • Jin Zhu
theoretical physics

Abstract.

The rare decay \(B^0 \to \phi\phi\) can occur only via the penguin annihilation topology in the standard model. We calculate this channel in the perturbative QCD approach. The predicted branching ratio is very small: around 10-8. We also give the polarization fractions, which show that the transverse polarization contribution is comparable to the longitudinal one, due to a big transverse contribution from factorizable diagrams. The small branching ratio in SM makes it sensitive to any new physics contributions.

Keywords

Field Theory Elementary Particle Quantum Field Theory Particle Acceleration Polarization Contribution 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin/Heidelberg 2005

Authors and Affiliations

  • Cai-Dian Lü
    • 1
    • 2
  • Yue-long Shen
    • 2
  • Jin Zhu
    • 2
  1. 1.CCAST (World Laboratory)BeijingP.R. China
  2. 2.Institute of High Energy PhysicsCASBeijingP.R. China

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