标题： 高温高密区的φ介子 显示英文标题

标题： The phi meson at high temperatures and densities

摘要： 在核子和π介子的热浴中计算了\$\phi\$介子的谱密度，通过把矢量介子自能与前向散射振幅联系起来，该振幅受实验数据约束。 色散技术被用来验证介质中自能的实部和虚部之间的关系。 发现\$\phi\$介子的谱峰位置仅从其真空位置发生很小的偏移，但其宽度显著增加。 显示英文摘要

摘要： The spectral density of the phi meson in a hot bath of nucleons and pions is calculated by relating the vector meson self-energy to the forward scattering amplitude, which is constrained by experimental data. Dispersion techniques are used to verify the relationship between real and the imaginary parts of the in-medium self energy. The position of the spectral peak of the phi meson is found to be shifted from its vacuum position by only a small amount, but its width is considerably increased.