Thermal radiation of photons and dileptons from hadronic matter plays an essential role in understanding electromagnetic emission spectra in high-energy heavy-ion collisions. In particular, baryons and anti-baryons have been found to be strong catalysts for electromagnetic radiation, even at collider energies where the baryon chemical potential is small. Here, we conduct a systematic analysis of \(\pi \)- and \(\omega \)-meson-induced reactions off a large set of baryon states. The interactions are based on effective hadronic Lagrangians where the parameters are quantitatively constrained by empirical information from vacuum decay branchings and scattering data, and gauge invariance is maintained by suitable regularization procedures. The thermal emission rates are computed using kinetic theory but can be directly compared to previous calculations using hadronic many-body theory. The comparison to existing calculations in the literature reveals our newly identified contributions to be rather significant.

强子物质产生的光子和二轻子的热辐射在理解高能重离子碰撞中的电磁发射光谱中起着至关重要的作用。特别是，重子和反重子被发现是电磁辐射的强催化剂，即使重子化学势很小的对撞机能量也是如此。在这里，我们对\（\ pi \） -和\（\ omega \）进行系统分析介子引起的大量重子态反应。相互作用基于有效的强子拉格朗日方程，其中参数受真空衰变分支和散射数据的经验信息定量约束，并且通过适当的正则化程序保持量规不变性。使用动力学理论计算热发射率，但可以将其与强子多体理论先前的计算结果直接比较。与文献中现有计算的比较表明，我们新发现的贡献相当重要。