Based on sum rules, we explore the twist-2 distribution amplitude of the K0∗(1430) meson, treating it as the ground state of a quark-antiquark system. We posit that the spacetime distance x should be infinitesimally close to the quark separation z. By incorporating quark distance corrections, with x2≈z2≈xz, the calculated moments yield additional insights. Moreover, we employ light-cone sum rules to compute the form factors for the semi-leptonic decay process Bs→K. The reliability of the computed distribution amplitude is confirmed through its comparison with the form factor.
@article{arxiv.2501.15121,
title = {Study on the Distribution Amplitude of the Scalar Meson $K_0^*(1430)$},
author = {Chen Wang and Yuanyuan Ma and Zhijun Wang and Yanjun Sun},
journal= {arXiv preprint arXiv:2501.15121},
year = {2025}
}