论文标题
Xenon1t过量的太阳起源，没有出色的冷却问题
A solar origin of the XENON1T excess without stellar cooling problems
论文作者
论文摘要
人们认为，最近对Xenon1T过量事件的太阳解释，例如轴突或太阳的暗光子排放，被认为与水平分支星星和红色巨人的恒星冷却边界相反。我们提出了一个简单的有效田间理论的深色光子理论，其中$ z_2 $的对称性禁止在密集的恒星中单个暗光子发射，从而避免了冷却界，而$ z_2 $在真空和太阳中自发地破裂，从而解释了Xenon1t的多余。负责$ Z_2 $破坏的标量具有极高的潜力，但是可以在量子校正下保持平坦度。 EFT的紫外线完成通常需要在黑暗光子上含有$ O（1）$耦合的新电动颗粒，并提供了进一步测试场景并打开实验室实验中黑暗区域的新窗口的机会。
Solar interpretations of the recent XENON1T excess events, such as axion or dark photon emissions from the sun, are thought to be at odds with stellar cooling bounds from the horizontal branch stars and red giants. We propose a simple effective field theory of a dark photon in which a $Z_2$ symmetry forbids a single dark photon emission in the dense stars, thereby evading the cooling bounds, while the $Z_2$ is spontaneously broken in the vacuum and sun, thereby explaining the XENON1T excess. The scalar responsible for the $Z_2$ breaking has an extremely flat potential, but the flatness can be maintained under quantum corrections. The UV completion of the EFT generally requires the existence of new electrically charged particles with sub-TeV masses with $O(1)$ couplings to the dark photon, offering the opportunity to test the scenario further and opening a new window into the dark sector in laboratory experiments.
