Asymmetry parameter of K-1(1270,1400) by analyzing the B -> K-1 nu(nu)over-bar transition form factors within QCD


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Bayar M. , Azizi K.

EUROPEAN PHYSICAL JOURNAL C, vol.61, pp.401-410, 2009 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 61 Issue: 3
  • Publication Date: 2009
  • Doi Number: 10.1140/epjc/s10052-009-1001-7
  • Title of Journal : EUROPEAN PHYSICAL JOURNAL C
  • Page Numbers: pp.401-410

Abstract

Separating the mixture of the K-1(1270) and K-1(1400) states, the B -> K-1(1270, 1400)nu(nu) over bar transition form factors are calculated in the three-point QCD sum rule approach. The longitudinal, transverse and total decay widths as well as the asymmetry parameter, characterizing the polarization of the axial K-1(1270, 1400) and the branching ratio for these decays, are evaluated.