Using the most general model-independent effective Hamiltonian comprising local four-Fermi operators (scalar, vector, and tensor operators), we study the sensitivity of the zero position of the lepton asymmetry to the new operators beyond the Standard Model (SM) in the B \rightarrow K\ell^+\ell^- decay. It is found that among all operators, only the scalar and tensor operators contribute to the forward-backward asymmetry, in which case the forward-backward asymmetry has a non-vanishing value.
B-decays, Standard Model, forward-backward asymmetry, zero position of the lepton asymmetry
ARDA, ALTUĞ (2004) "The Zero Position of the Forward-Backward Asymmetry in the B \rightarrow K\ell^+\ell^- Decay with New Physics Effects," Turkish Journal of Physics: Vol. 28: No. 6, Article 1. Available at: https://journals.tubitak.gov.tr/physics/vol28/iss6/1