论文标题
热浦胎气中的锥度阻尼宽度和锥形光谱功能
Pion damping width and pion spectral function in hot pion gas
论文作者
论文摘要
在NJL模型的框架中研究了望元相中斜宽度宽度的温度行为。从斜向 - 彼碰碰撞中对宽度的贡献被视为中间状态。结果表明，触发宽度在$ t> 0.1 $ gev处显着拓宽。使用Kadanoff和Baym建议的两步迭代方法，在不同的温度下计算热旋转气中的PION光谱功能。
The temperature behaviour of the pion width in the hadronic phase is investigated in the framework of the NJL model. The contribution to the width from the pion-pion collision is considered with a scalar sigma-meson as an intermediate state. It is shown that the pion width significantly broadens at $T>0.1$ GeV. Using the two-step iteration method, suggested by Kadanoff and Baym, the pion spectral function in a hot pion gas is calculated at different temperatures.
