Electron proton (ep) colliders could provide particle collisions at TeV energies with large data rates while maintaining the clean and pile up-free environment of lepton colliders, which makes them very attractive for heavy neutrino searches. Heavy (mainly sterile) neutrinos with masses around the electroweak scale are proposed in low scale seesaw models for neutrino mass generation. In this paper, we analyse two of the most promising signatures of heavy neutrinos at ep colliders, the lepton-flavour violating (LFV) lepton-trijet signature and the displaced vertex signature. In the considered benchmark model, we find that for heavy neutrino masses around a few hundred GeV, the LFV lepton-trijet signature at ep colliders yields the best sensitivity of all currently discussed heavy neutrino signatures (analysed at the reconstructed level) up to now.

中文翻译：

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在未来的电子-质子对撞机中轻子-三射流和位移顶点搜索重中微子

电子质子 (ep) 对撞机可以在 TeV 能量下以大数据速率提供粒子碰撞，同时保持轻子对撞机的清洁和无堆积环境，这使得它们对重中微子搜索非常有吸引力。在用于中微子质量生成的低尺度跷跷板模型中提出了质量在电弱尺度附近的重（主要是无菌）中微子。在本文中，我们分析了 ep 对撞机中重中微子的两个最有希望的特征，轻子风味违反 (LFV) 轻子-三喷射特征和位移顶点特征。在所考虑的基准模型中，我们发现对于大约几百 GeV 的重中微子质量，ep 对撞机处的 LFV 轻子-三喷气特征产生目前所有当前讨论的重中微特征（在重建级别分析）中的最佳灵敏度。