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


Arda A. , BOZ M.

PHYSICAL REVIEW D, cilt.66, sa.7, 2002 (SCI İndekslerine Giren Dergi) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 66 Konu: 7
  • Basım Tarihi: 2002
  • Doi Numarası: 10.1103/physrevd.66.075012
  • Dergi Adı: PHYSICAL REVIEW D

Özet

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.