$q\bar{q}$ scattering phase shift in the ${\pi }^0$ channel and ${\pi }^0$ meson spectral function under external magnetic field and finite meson momentum

Min Zhou, Zhiyang Liu, Yvming Tian +3

$q\bar{q}$ scattering phase shift in the ${\pi }^0$ channel ${\Phi }_{{\pi }^0}({\omega }^2,{\mathbf{k}}_{\perp }^2,k_3^2)$ and ${\pi }^0$ meson spectral function ${\rho }_{{\pi }^0}({\omega }^2,{\mathbf{k}}_{\perp }^2,k_3^2)$ under exter…