@article{10272/27500,
year = {2025},
url = {https://hdl.handle.net/10272/27500},
abstract = {Employing 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.},
organization = {This work is supported by the Spanish MICINN Grant No. PID2022-140440NB-C22, and the regional Andalusian Project No. P18-FR-5057},
publisher = {American Physical Society},
title = {𝐷*⁢𝐷⁢𝜋 and 𝐵*⁢𝐵⁢𝜋 couplings from Dyson-Schwinger equations framework},
doi = {10.1103/vqff-f9pb},
author = {Xu, Yinzhen and Raya, Khépani},
}