Strong couplings of scalar heavy mesons with light axial vector and pseudoscalar states in LCSR

Abstract

This study focuses on estimating the strong coupling constants of charmed and bottom mesons, such as B⁎, D⁎, B1, and D1, in relation to light pseudoscalar and axial vector states including π−, K−, a1−, b1−, K1(1270), and K1(1400). We will utilize the framework of light-cone QCD sum rules to achieve this. By employing this methodology, we will determine the values of these coupling constants and compare them to predictions from other approaches. This comparison will enable us to evaluate the accuracy and reliability of our estimations and determine the level of agreement between various theoretical models. Ultimately, our research will enhance our understanding of the strong interactions involving charmed and bottom mesons, as well as the associated light pseudoscalar and axial vector states.