Model independent analysis of the decay B -> K+l(+)+l(-)

Pak N., Rekalo M.

PHYSICS LETTERS B, vol.433, pp.405-410, 1998 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 433
  • Publication Date: 1998
  • Doi Number: 10.1016/s0370-2693(98)00693-5
  • Journal Name: PHYSICS LETTERS B
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.405-410
  • Middle East Technical University Affiliated: No


We demonstrate that the Dalitz-distributions in energies of both unpolarized leptons, produced in the decays B --> K + l(+) + l(-) for l= e, mu, tau, can be a sensitive test for possible new physics beyond the Standard Model. We find measurable characteristics (including the polarization of leptons as well) which are independent of all dirty non-perturbative physics needed in calculating the hadronic form factors. Such characteristics can be used to estimate the presence of possible non-standard mechanisms in a model-independent manner. (C) 1998 Elsevier Science B.V. All rights reserved.