| Title: |
Search for heavy neutral leptons decaying into muon-pion pairs in the MicroBooNE detector |
| Authors: |
Szelc, Andrzej; Guzowski, Pawel; Garcia Gamez, Diego; Evans, Justin; Porzio, Salvatore Davide; Söldner-Rembold, Stefan; Basque, Vincent Marc; Mistry, Krishan; Goodwin, Owen; Green, Patrick; Mcconkey, Nicola; Furmanski, Andrew; Bhanderi, Aditya Harish |
| Source: |
Szelc, A, Guzowski, P, Garcia Gamez, D, Evans, J, Porzio, S D, Söldner-Rembold, S, Basque, V M, Mistry, K, Goodwin, O, Green, P, Mcconkey, N, Furmanski, A & Bhanderi, A H 2020, 'Search for heavy neutral leptons decaying into muon-pion pairs in the MicroBooNE detector', Physical Review D (Particles, Fields, Gravitation and Cosmology). https://doi.org/10.1103/PhysRevD.101.052001 |
| Publication Year: |
2020 |
| Collection: |
The University of Manchester: Research Explorer - Publications |
| Description: |
We present upper limits on the production of heavy neutral leptons (HNLs) decaying to μπ pairs using data collected with the MicroBooNE liquid-argon time projection chamber (TPC) operating at Fermilab. This search is the first of its kind performed in a liquid-argon TPC. We use data collected in 2017 and 2018 corresponding to an exposure of 2.0×1020 protons on target from the Fermilab Booster Neutrino Beam, which produces mainly muon neutrinos with an average energy of ≈800 MeV. HNLs with higher mass are expected to have a longer time of flight to the liquid-argon TPC than Standard Model neutrinos. The data are therefore recorded with a dedicated trigger configured to detect HNL decays that occur after the neutrino spill reaches the detector. We set upper limits at the 90% confidence level on the element |Uμ4|2 of the extended PMNS mixing matrix in the range |Uμ4|2 |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| ISSN: |
2470-0010; 1550-2368 |
| Relation: |
info:eu-repo/semantics/altIdentifier/pissn/2470-0010; info:eu-repo/semantics/altIdentifier/eissn/1550-2368 |
| DOI: |
10.1103/PhysRevD.101.052001 |
| Availability: |
https://research.manchester.ac.uk/en/publications/35744036-676f-47b0-bbe7-2f8f0375ef7f; https://doi.org/10.1103/PhysRevD.101.052001; https://www.scopus.com/pages/publications/85082740673 |
| Rights: |
info:eu-repo/semantics/openAccess |
| Accession Number: |
edsbas.62F12253 |
| Database: |
BASE |