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Electroweak Penguin: bsZ Vertex, Z′, Dark Matter

  • George W. S. Hou
Chapter
Part of the Springer Tracts in Modern Physics book series (STMP, volume 233)

In Sect. 2.2, we discussed the effects of the \(b\to s\bar qq\) electroweak penguin interfering with the strong penguin and tree amplitudes. The quintessential electroweak penguin would be \(b\to s\ell^+\ell^-\) decay or \(b\to s\nu\nu\)that has no photonic contribution. We now discuss how the study of these processes, present already in SM, could help us probe New Physics as well. Besides presenting some background development, we will focus on the forward-backward asymmetry \(A_{\mathrm{FB}}(B\to K^*\ell^+\ell^-)\) as a probe of the bsZ vertex, comment briefly on a possible \(Z^\prime\) boson as a source for generating effective \([\bar sb][\bar\ell\ell]\) and \([\bar sb][\bar\nu\nu]\)four-fermi interactions, and treat \(b\to s\nu\nu\), which has the same signature as \(b\to s+\) nothing, as a probe of light Dark Matter (DM).

Keywords

Dark Matter Higgs Boson Yukawa Coupling Dark Matter Particle Belle Collaboration 
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 2009

Authors and Affiliations

  • George W. S. Hou
    • 1
  1. 1.Dept. PhysicsNational Taiwan UniversityTaipei 106Taiwan R.O.C

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