论文标题
相对论玻色子和Xenon1t过量的银河系起源
Galactic Origin of Relativistic Bosons and XENON1T Excess
论文作者
论文摘要
我们娱乐了深色物质（DM）腐烂或歼灭的异国情调可能性可能会产生相对论的非常弱耦合的玻色子，轴或暗光子的通量。我们表明，假设DM的通用最小要求（例如，寿命长于宇宙的年龄，或者在物质统治过程中不受影响的背景演变）的寿命长，则在地球上存在几个上限。这些边界不取决于玻色子的身份或耦合。然后，我们表明，这种新的通量不能足够大，无法解释最近的Xenon1t过量，同时假设玻色子与标准模型的耦合与所有当前的实验和观察性约束是一致的。我们还讨论了这些界限的可能警告，以及解释多余的途径。
We entertain the exotic possibility that dark matter (DM) decays or annihilations taking place in our galaxy may produce a flux of relativistic very weakly-coupled bosons, axions or dark photons. We show that there exist several upper bounds for this flux on Earth assuming generic minimal requirements for DM, such as a lifetime longer than the age of the Universe or an annihilation rate that leaves unaffected the background evolution during matter domination. These bounds do not depend on the identity or the couplings of the bosons. We then show that this new flux cannot be large enough to explain the recent XENON1T excess, while assuming that the bosons' couplings to the Standard Model are consistent with all current experimental and observational constraints. We also discuss a possible caveat to these bounds and a route to explain the excess.
