论文标题
违反奇偶校验和$ W $质量对深色光子的约束
Constraints on the dark photon from parity violation and the $W$ mass
论文作者
论文摘要
我们介绍了平均侵略电子散射（PVE）和原子奇偶差（包括深色光子的影响）的实验数据的分析。我们得出了深色光子参数空间的偏爱区域，该区域很好地描述了QWEAK协作和Jefferson Lab PVDIS协作的实验数据，并同时缓解了Prex-II实验中确定的中子皮肤厚度和核模型预测的中子皮肤厚度之间的张力。此外，我们提取解释最新的W玻璃体质量异常所需的参数区域。我们的结果表明，在Z玻色子质量上方的质量上方的较重的深色光子受到青睐，而除了深色光子之外，还可以预料到标准模型以外的其他新物理学来源。
We present an analysis of the experimental data for parity-violating electron scattering (PVES) and atomic parity-violation, including the effects of a dark photon. We derive the favored region of dark photon parameter space, which provides a good description of the experimental data from the Qweak Collaboration and the Jefferson Lab PVDIS Collaboration and simultaneously relieves the tension between the neutron skin thickness determined in the PREX-II experiment and nuclear-model predictions. In addition, we extract the parameter region required to explain the latest W-boson mass anomaly. Our results indicate that a heavy dark photon with mass above the Z boson mass is favored, while other sources of new physics beyond the Standard Model in addition to the dark photon would also be expected.
