Extraction of Axial Form Factors from Bbar0 --> D+ K- K{*0} Decay

Details Extraction of Axial Form Factors from Bbar0 --> D+ K- K{*0} Decay Extraction of Axial Form Factors from Bbar0 --> D+ K- K{*0} Decay

2004-03-08

arxiv.org/abs/hep-ph/0403079v1

Phys.Rev. D70 (2004) 034032

Physics

High Energy Physics

High Energy Physics - Phenomenology

15 pages, 5 figures

Scientific paper

10.1103/PhysRevD.70.034032

Based on Bbar to 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 the 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 a_1(1260)-resonance plus QCD-motivated non-resonant contributions, which can be improved as data improves.

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