论文标题
手性对称性恢复真空中的媒介膜质量
Vector meson mass in the chiral symmetry restored vacuum
论文作者
论文摘要
我们计算手性对称性恢复真空中载体中膜的质量。这是通过将出现在矢量中的四个夸克操作员分开，并根据费米昂零模式的贡献，将出现在矢量中的四个夸克操作员分离为手性对称和对称性零件。然后，我们将每个部分从拟合到矢量和轴向载体介子质量识别。通过将手性对称性断裂零件为零，同时将对称算子保持在真空值中，我们发现矢量的手性对称部分和轴向矢量介子质量在550至600 meV之间。这表明，手性对称性破裂虽然负责手性伴侣之间的质量差异，但仅占质量对称部分的一小部分。
We calculate the mass of the vector meson in the chiral symmetry restored vacuum. This is accomplished by separating the four quark operators appearing in the vector and axial vector meson sum rules into chiral symmetric and symmetry breaking parts depending on the contribution of the fermion zero modes. We then identify each part from the fit to the vector and axial vector meson masses. By taking the chiral symmetry breaking part to be zero while keeping the symmetric operator to the vacuum value, we find that the chiral symmetric part of the vector and axial vector meson mass to be between 550 and 600 MeV. This demonstrates that chiral symmetry breaking, while responsible for the mass difference between chiral partner, accounts only for a small fraction of the symmetric part of the mass.
