arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2407.01002hep-phhep-ex
收藏

具有宇称破坏相互作用的希格斯门户自旋-1暗物质

Higgs-Portal Spin-1 Dark Matter with Parity-Violating Interaction

Kimiko Yamashita

AI总结:

本研究引入带Z₂奇暗宇称的自旋-1 U(1)ₓ 希格斯门户暗物质,通过宇称奇6维算符规避直接探测约束,在1 TeV截断标度下400 GeV质量的该暗物质可符合遗迹密度要求且满足LUX-ZEPLIN实验限制。

摘要:

我们引入具有Z₂奇暗宇称的自旋-1 U(1)ₓ 规范场X,以规避当前对动理学混合的强约束。此时X成为稳定粒子,可作为暗物质候选者。相互作用的最低质量维数为6,类型为希格斯门户,我们引入了两类6维算符。我们考虑了暗物质的退耦(freeze-out)场景。在零动量转移极限下,宇称奇算符不受直接探测约束的限制。相应地,宇称偶算符受到的强约束表明,开启该宇称奇算符可实现宇宙的暗物质遗迹密度。在1 TeV截断标度下,我们提出的质量约400 GeV的暗物质可以解释暗物质遗迹密度,且能通过直接探测实验LUX-ZEPLIN的限制。

英文摘要:

We introduce the spin-1 $U(1)_X$ gauged field $X$ with $Z_2$ odd dark parity to evade the current strong constraints on kinetic mixing. Then, $X$ becomes stable and a candidate for the dark matter. The lowest mass dimension of interaction is six, and the type is the Higgs portal. Two types of dim-6 operators are introduced. We consider the freeze-out dark matter scenario. With the limit of null momentum transfer, a parity odd operator is free from the direct detection constraints. Accordingly, the strong constraints on a parity even operator indicate turning on this parity odd operator to realize the dark matter relic density of the Universe. With the 1 TeV cut-off scale, our dark matter of around 400 GeV mass can explain the dark matter relic density and is allowed from the LUX-ZEPLIN experiment of the direct detection.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑