Xu, YinzhenRaya, Khépani2025-12-032025-12-032025Xu, Y.-Z., & Raya, K. (2025). 𝐷*⁢𝐷⁢𝜋 and 𝐵*⁢𝐵⁢𝜋 couplings from Dyson-Schwinger equations framework. Physical Review D, 112(1). https://doi.org/10.1103/vqff-f9pb2470-00102470-0029 (electrónico)https://hdl.handle.net/10272/27500Employing a unified Dyson-Schwinger/Bethe-Salpeter equations approach, we calculate the strong decay couplings 𝐷*⁢𝐷⁢𝜋 and 𝐵*⁢𝐵⁢𝜋 within the so-called impulse-approximation in the moving frame. The 𝐵*⁢𝐵⁢𝜋 estimation is reported for the first time based on a Poincaré invariant computation of the associated Bethe-Salpeter amplitudes. Our predictions yield 𝑔𝐷*⁢𝐷⁢𝜋 =16.2⁢2+0.03−0.01 and 𝑔𝐵*⁢𝐵⁢𝜋 =40.0⁢9+1.51−1.37, along with corresponding static strong couplings of ^𝑔𝐷 =0.5⁢5+<0.01−<0.01, ^𝑔𝐵 =0.5⁢0+0.02−0.02, which are consistent with recent experimental and lattice data.engAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/journal article10.1103/vqff-f9pbopen access2212 Física Teórica2212.02 Partículas Elementales