Sensitivity of the zero position of the forward-backward asymmetry to new physics effects in the B -> K-*mu(+)mu(-) decay

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Arda A., BOZ M.

PHYSICAL REVIEW D, vol.66, no.7, 2002 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 66 Issue: 7
  • Publication Date: 2002
  • Doi Number: 10.1103/physrevd.66.075012
  • Journal Name: PHYSICAL REVIEW D
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED)
  • Hacettepe University Affiliated: Yes


Starting with the most general effective Hamiltonian comprising scalar and vector operators beyond the standard model, we discuss the impact of various operators on the zero of the forward-backward asymmetry in the dileptonic B decay B-->K*mu(+)mu(-). We find that the zero of the asymmetry is highly sensitive to the sign and size of the vector-vector operators and opposite chirality counterparts of the usual operators. The scalar-scalar four-fermion operators, on the other hand, have a mild effect on the zero of the asymmetry. Our results are expected to be checked in near future experiments.