Long-lived heavy neutral leptons with a displaced shower signature at CMS
| dc.contributor.author | Cottin Giovanna | |
| dc.contributor.author | Helo Juan Carlos | |
| dc.contributor.author | Hirsch Martin | |
| dc.contributor.author | Pena Cristian | |
| dc.contributor.author | Wang Christina | |
| dc.contributor.author | Xie Si | |
| dc.date.accessioned | 2025-05-19T16:37:52Z | |
| dc.date.available | 2025-05-19T16:37:52Z | |
| dc.date.issued | 2023/02/01 | |
| dc.description.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. | |
| dc.identifier.doi | http://dx.doi.org/10.1007/JHEP02(2023)011 | |
| dc.identifier.issn | 1029-8479 | |
| dc.identifier.uri | https://publicacionesabiertas.userena.cl/handle/123456789/282 | |
| dc.language | English | |
| dc.publisher | SPRINGER | |
| dc.subject | SYMMETRY, MASSES | |
| dc.title | Long-lived heavy neutral leptons with a displaced shower signature at CMS | |
| dc.type | Article |