论文标题
有限化学势处（轴向）载体介子的质量和衰减常数
Masses and decay constants of (axial-)vector mesons at finite chemical potential
论文作者
论文摘要
我们在零温度和有限的夸克化学势下对（伪 - ）标量介子进行了以前的结果，并将研究推广到包括（轴向）媒介中。我们确定诸如介子质量和衰减常数之类的结合状态，直至一阶共存区域的化学势。 To extract the bound-states properties, we solve the Bethe-Salpeter equation and utilize Landau-gauge quark and gluon propagators obtained from a coupled set of (truncated) Dyson-Schwinger equations with N$_\textup{f}=2+1$ dynamical quark flavors at finite chemical potential and vanishing temperature.对于多个（伪）标量和（轴向）载体介子，我们观察到恒定的质量和衰减常数，用于化学电位，直至一阶相变的共存区域，从而明确验证了QCD的银蓝色特性。在共存区域内部裂缝变得更大，其衰减常数减少，而（轴向）载体介子的相应量保持（几乎）恒定。
We update our previous results for (pseudo-)scalar mesons at zero temperature and finite quark chemical potential and generalize the investigation to include (axial-)vector mesons. We determine bound-state properties such as meson masses and decay constants up to chemical potentials far in the first-order coexistence region. To extract the bound-states properties, we solve the Bethe-Salpeter equation and utilize Landau-gauge quark and gluon propagators obtained from a coupled set of (truncated) Dyson-Schwinger equations with N$_\textup{f}=2+1$ dynamical quark flavors at finite chemical potential and vanishing temperature. For multiple (pseudo-)scalar and (axial-)vector mesons, we observe constant masses and decay constants for chemical potentials up to the coexistence region of the first-order phase transition thus verifying explicitly the Silver-Blaze property of QCD. Inside the coexistence region the pion becomes more massive and its decay constants decrease, whereas corresponding quantities for the (axial-)vector mesons remain (almost) constant.
