Weak decay constant of pseudscalar meson in a QCD-inspired model

Abstract

We show that a linear scaling between the weak decay constants of pseudoscalar and the vector mesons masses is supported by the available experimental data. The decay constant scale as $f_m/f_{pi}=M_V/M_{\rho }$ (f_m is decay constant and M_V vector meson ground state mass). This simple form is justified within a renormalized light-front QCD-inpired model for quark-antiquark bound states.

4 pages, use revtex style. To appear "Brazilian Journal of Physics (2003)"

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