@Article{Cottin_etal2023,
author="Cottin, G.
and Helo, J. C.
and Hirsch, M.
and Pena, C.
and Wang, C. S. A.
and Xie, S.",
title="Long-lived heavy neutral leptons with a displaced shower signature at CMS",
journal="Journal of High Energy Physics",
year="2023",
publisher="Springer",
volume="02",
number="2",
pages="011--16pp",
optkeywords="New Light Particles; Sterile or Heavy Neutrinos",
abstract="We study the LHC discovery potential in the search for heavy neutral leptons (HNL) with a new signature: a displaced shower in the CMS muon detector, giving rise to a large cluster of hits forming a displaced shower. A new Delphes module is used to model the CMS detector response for such displaced decays. We reinterpret a dedicated CMS search for neutral long-lived particles decaying in the CMS muon endcap detectors for the minimal HNL scenario. We demonstrate that this new strategy is particularly sensitive to active-sterile mixings with tau leptons, due to hadronic tau decays. HNL masses between similar to 1-6 GeV can be accessed for mixings as low as vertical bar V-tau N vertical bar(2) similar to 10(-7), probing unique regions of parameter space in the tau sector.",
optnote="WOS:000924750700002",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=5474), last updated on Thu, 02 Mar 2023 08:03:08 +0000",
issn="1029-8479",
doi="10.1007/JHEP02(2023)011",
opturl="https://arxiv.org/abs/2210.17446",
opturl="https://doi.org/10.1007/JHEP02(2023)011",
language="English"
}