arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2011.08195hep-phastro-ph.HE
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II型辐射中微子质量模型中的候选暗物质

Dark Matter candidates in a Type-II radiative neutrino mass model

Roberto A. Lineros, Mathias Pierre

摘要:

我们探索暗物质和中微子之间的联系,在辐射II型跷跷板和暗生情景的启发模型。在我们的模型中,我们引入了新的电弱荷电态(标量和矢量费米子),并施加了离散的$\mathbb{Z}_2$对称性。中微子质量是在环水平产生的,最轻的$\mathbb{Z}_2$ -奇中性粒子是稳定的,它可以扮演暗物质候选者的角色。我们进行了数值分析的模型表明,中微子质量和味道结构可以复制除了正确的暗物质密度,与可行的DM质量从700 GeV到30 TeV。我们探索了直接和间接的检测特征,并通过CTA,Darwin和KM 3 Net展示了有趣的检测前景,并强调了这些观测值之间的互补性。

英文摘要:

We explore the connection between Dark Matter and neutrinos in a model inspired by radiative Type-II seessaw and scotogenic scenarios. In our model, we introduce new electroweakly charged states (scalars and a vector-like fermion) and impose a discrete $\mathbb{Z}_2$ symmetry. Neutrino masses are generated at the loop level and the lightest $\mathbb{Z}_2$-odd neutral particle is stable and it can play the role of a Dark Matter candidate. We perform a numerical analysis of the model showing that neutrino masses and flavour structure can be reproduced in addition to the correct dark matter density, with viable DM masses from 700 GeV to 30 TeV. We explore direct and indirect detection signatures and show interesting detection prospects by CTA, Darwin and KM3Net and highlight the complementarity between these observables.

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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