Light-Front Model of Transition Form-Factors in Heavy Meson Decay

Details Light-Front Model of Transition Form-Factors in Heavy Meson Decay Light-Front Model of Transition Form-Factors in Heavy Meson Decay

2010-03-10

arxiv.org/abs/1003.2132v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Paper with 5 pages and 2 eps figures. To appear to Nuclear Physics B. Talk at Light Cone 2009: Relativistic Hadronic and Parti

Scientific paper

Electroweak transition form factors of heavy meson decays are important ingredients in the extraction of the Cabibbo-Kobayashi-Maskawa (CKM) matrix elements from experimental data. In this work, within a light-front framework, we calculate electroweak transition form factor for the semileptonic decay of $D$ mesons into a pion or a kaon. The model results underestimate in both cases the new data of CLEO for the larger momentum transfers accessible in the experiment. We discuss possible reasons for that in order to improve the model.

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