3 papers
hep-ph2025
Hadronic Decay in the Nambu-Jona-Lasinio Model: Mass-Width Interplay and Beyond-RPA Corrections
Qing-Wu Wang, Xiao-Fu Ł\textü, Hua-Zhong Guo
We present a novel framework for analyzing unstable composite particles using Green's functions and dispersion relations. As an illustrative example, we explore the vector meso…
hep-ph2023
Temperature and volume dependence of pion-pion scattering lengths
Qing-Wu Wang, Hua-Zhong Guo
The s-wave pion-pion scattering lengths and are studied at finite temperature and in finite spatial volume under the framework of the Nambu--Jona-Lasinio model. Wit…
nucl-th2018
Proton tensor charges from a Poincaré-covariant Faddeev equation
Qing-Wu Wang, Si-Xue Qin, Craig D. Roberts +1
The proton's tensor charges are calculated at leading order in a symmetry-preserving truncation of all matter-sector equations relevant to the associated bound-state and scattering…