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Article
Report number	nucl-th/0102057
Title	$K_{l3}$ transition form factors
Author(s)	Ji, C R (North Carolina State U.) ; Maris, P (North Carolina State U.)
Publication	2001
In:	Phys. Rev. D 64 (2001) 014032
DOI	10.1103/PhysRevD.64.014032
Subject category	Nuclear Physics - Theory
Abstract	The rainbow truncation of the quark Dyson-Schwinger equation is combined with the ladder Bethe-Salpeter equation for the meson bound state amplitudes and the dressed quark-W vertex in a manifestly covariant calculation of the K_{l3} transition form factors and decay width in impulse approximation. With model gluon parameters previously fixed by the chiral condensate, the pion mass and decay constant, and the kaon mass, our results for the K_{l3} form factors and the kaon semileptonic decay width are in good agreement with the experimental data.

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