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arXiv 2409.02191hep-ph
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$Z^\prime$介导的强耦合暗物质冻结产生

$Z^\prime$-mediated dark matter freeze-in at stronger coupling

Giorgio Arcadi, David Cabo-Almeida, Oleg Lebedev

AI总结:

研究$Z^\prime$介导的费米子暗物质在玻尔兹曼抑制下的冻结产生,发现需强规范耦合,并指出该模型可被直接探测实验检验。

摘要:

我们研究了由$Z^\prime$规范玻色子介导的费米子暗物质的冻结产生(freeze-in)。特别地,我们探索了玻尔兹曼抑制产生机制,即标准模型(SM)热浴温度始终不超过暗物质质量的区域。相应地,规范耦合常数需要显著增大,最高可达量级为一。因此,这类冻结产生模型可以被当前和未来的暗物质直接探测实验所检验。

英文摘要:

We study freeze-in production of fermionic dark matter mediated by a $Z^\prime$ gauge boson. In particular, we explore the regime of Boltzmann-suppressed production, when the Standard Model (SM) thermal bath temperature never exceeds the dark matter mass. The corresponding gauge coupling is then required to be significant, up to order one. As a result, this class of freeze-in models can be probed by the current and future direct dark matter detection experiments.

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。

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