Search for long-lived heavy neutral leptons decaying in the CMS muon detectors in proton-proton collisions at √s=13 TeV
Yazarlar (1)
Prof. Dr. Hasan OĞUL Sinop Üniversitesi, Türkiye
| Makale Türü |
Özgün Makale
(SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
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| Dergi Adı | Physical Review D (Q1) | ||
| Dergi ISSN | 2470-0010 Dergi Bilgileri (2024) | ||
| Makale Dili | İngilizce | Basım Tarihi | 07-2024 |
| Kabul Tarihi | 08-05-2024 | Yayınlanma Tarihi | 08-07-2024 |
| Cilt / Sayı / Sayfa | 110 / 1 / – | DOI | 10.1103/PhysRevD.110.012004 |
| Makale Linki | https://doi.org/10.1103/physrevd.110.012004 | ||
| UAK Araştırma Alanları |
Fen Bilimleri ve Matematik
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| Özet |
| A search for heavy neutral leptons (HNLs) decaying in the CMS muon system is presented. A data sample is used corresponding to an integrated luminosity of Formula Presented of proton-proton collisions at Formula Presented, recorded at the CERN LHC in 2016-2018. Decay products of long-lived HNLs could interact with the shielding materials in the CMS muon system and create hadronic and electromagnetic showers detected in the muon chambers. This distinctive signature provides a unique handle to search for HNLs with masses below 4 GeV and proper decay lengths of the order of meters. The signature is sensitive to HNL couplings to all three generations of leptons. Candidate events are required to contain a prompt electron or muon originating from a vertex on the beam axis and a displaced shower in the muon chambers. No significant deviations from the standard model background expectation are observed. In the electron (muon) channel, the most stringent limits to date are set for HNLs in the mass range of 2.1-3.0 (1.9-3.3) GeV, reaching mixing matrix element squared values as low as Formula Presented. |
| Anahtar Kelimeler |
BM Sürdürülebilir Kalkınma Amaçları
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