We consider models of light dark matter coupled to quarks through a vector current interaction. For low energies, these models must be treated through the effective couplings to mesons, which are implemented here through the chiral Lagrangian. We find the signals of dark matter annihilation and decay to the light mesons, and find the expected photon spectrum from the decay of the hadrons. We compare the current and future observations, and show that there is a significant discovery reach for these models.

中文翻译：

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通过夸克矢量电流入口的暗物质

我们考虑通过矢量电流相互作用与夸克耦合的轻暗物质模型。对于低能量，必须通过与介子的有效耦合来处理这些模型，这里通过手性拉格朗日函数实现。我们找到暗物质湮灭和衰变到轻介子的信号，并从强子衰变中找到预期的光子光谱。我们比较了当前和未来的观察结果，并表明这些模型具有重要的发现范围。