Extraction of axial form factors from B?0→D +K-K*0 decay
Journal
Physical Review D - Particles, Fields, Gravitation and Cosmology
Journal Volume
93
Journal Issue
5
Pages
034032-1-034032-7
Date Issued
2004
Author(s)
Abstract
Based on B̄→D(*)K-K*0 decay data, which supports factorization, we propose to extract the kaon axial form factor in the factorization framework. Experiment indicates that K -K*0 pair is produced by an axial current where only one out of three axial form factors is dominant. The axial form factor can be extracted by fitting the K-K*0 mass spectrum with an a1(1260)-resonance plus QCD-motivated nonresonant contributions, which can be improved as data improves.
Type
journal article