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Spectral Functions for Heavy-Light Currents and Form Factor Relations in Hqet
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Spectral Functions for Heavy-Light Currents and Form Factor Relations in Hqet
classification
hep-ph
keywords
formrelationsfactorfunctionsheavyquarkspectralvector
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We derive relations among form factors describing the current-induced transitions: (vacuum) $\rightarrow B,B^{*}, B \pi, B^{*} \pi, B \rho$ and $B^{*} \rho$ using heavy quark symmetry. The results are compared to corresponding form factor relations following from identities between scalar and axial vector, and pseudoscalar and vector spectral functions in the heavy quark limit.
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