The exclusive B -> (K, K*)l(+)l(-) decays in a CP softly broken two Higgs doublet model

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Erkol G., Turan G.

NUCLEAR PHYSICS B, vol.635, pp.286-308, 2002 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 635
  • Publication Date: 2002
  • Doi Number: 10.1016/s0550-3213(02)00349-8
  • Journal Name: NUCLEAR PHYSICS B
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.286-308
  • Middle East Technical University Affiliated: Yes


We study the differential branching ratio, forward-backward asymmetry, CP-violating asymmetry, CP-violating asymmetry in the forward-backward asymmetry and polarization asymmetries in the B --> Kl(+)l(-) and B --> K*l(+)l(-) decays in the context of a CP softly broken two Higgs doublet model. We analyze the dependencies of these observables on the model parameters by paying a special attention to the effects of neutral Higgs boson (NHB) exchanges and possible CP-violating effects. We find that NHB effects are quite significant for both decays. A combined analysis of above-mentioned observables seems to be very promising as a testing ground for new physics beyond the SM, especially for the existence of the CP-violating phase in the theory. (C) 2002 Published by Elsevier Science B.V.