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Form factors in $B \to f_0(980)$ and $D \to f_0(980)$ transitions from dispersion relations

By B. El-Bennich, O.M.A. Leitner, B. Loiseau and J.-P. Dedonder

Abstract

Talk given at MESON 2006, Krakow, 9-13 June 2006 - présenté par B. El-BennichInternational audienceWithin the dispersion relation approach we give the double spectral representation for space-like and time-like B-> f_0(980) and D-> f_0(980) transition form factors in the full q^2 range. The spectral densities, being the input of the dispersion relations, are obtained from a triangle diagram in the relativistic quark model

Topics: [PHYS.HPHE] Physics [physics]/High Energy Physics - Phenomenology [hep-ph], [PHYS.NUCL] Physics [physics]/Nuclear Theory [nucl-th]
Publisher: World Publishing Company
Year: 2006
DOI identifier: 10.1142/S0217751X07036026
OAI identifier: oai:HAL:in2p3-00128943v1
Provided by: Hal-Diderot
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