Abstract We propose a parametrization of the leading B-meson 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. https://lecoureures.shop/product-category/ski-de-fond-equipement-fixations-pieces-de-rechange/