Abstract We propose a parametrization of the leading B-meson verona wig light-cone distribution amplitude (LCDA) in heavy-quark effective theory (HQET).In position space, it uses a conformal transformation that yields a systematic Taylor expansion and an integral bound, which enables control of the truncation error.Our parametrization further produces compact analytical expressions for a variety of derived quantities.At a given reference scale, our momentum-space parametrization corresponds to an expansion in associated Laguerre polynomials, which turn into confluent hypergeometric functions 1 F 1 under renormalization-group evolution at one-loop accuracy.
Our approach thus allows a straightforward and transparent implementation of a variety of phenomenological constraints, regardless of their origin.Moreover, we can include theoretical information on the Taylor coefficients by using kenya tree coral for sale the local operator product expansion.We showcase the versatility of the parametrization in a series of phenomenological pseudo-fits.