Szczegóły publikacji
Opis bibliograficzny
Search for long-lived particles decaying to $e^{\pm}\mu^{\mp}\nu$ / R. Aaij, [et al.], A. DENDEK, [et al.], M. FIRLEJ, [et al.], T. FIUTOWSKI, [et al.], M. IDZIK, [et al.], P. KOPCIEWICZ, [et al.], W. KRUPA, [et al.], W. KUCEWICZ, [et al.], O. MADEJCZYK, [et al.], M. W. MAJEWSKI, [et al.], J. MOROŃ, [et al.], A. OBŁĄKOWSKA-MUCHA, [et al.], B. RACHWAŁ, [et al.], J. RYŻKA, [et al.], K. ŚWIENTEK, [et al.], T. SZUMLAK, [et al.] // The European Physical Journal. C, Particles and Fields ; ISSN 1434-6044. — 2021 — vol. 81 iss. 3 art. no. 261, s. 1–16. — Bibliogr. s. 10–11, Abstr. — Publikacja dostępna online od: 2021-03-26. — W. Kucewicz – dod. afiliacja: Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków
Autorzy (985)
- AGHDendek Adam
- AGHFirlej Mirosław
- AGHFiutowski Tomasz
- AGHIdzik Marek
- AGHKopciewicz Paweł
- AGHKrupa Wojciech
- AGHKucewicz Wojciech
- AGHMadejczyk-Dziedzic Olga
- AGHMajewski Maciej W.
- AGHMoroń Jakub
- AGHObłąkowska-Mucha Agnieszka
- AGHRachwał Bartłomiej
- AGHRyżka Jakub
- AGHSzumlak Tomasz
- AGHŚwientek Krzysztof
- Aaij Roel
- Marinangeli Matthieu
Dane bibliometryczne
| ID BaDAP | 133658 |
|---|---|
| Data dodania do BaDAP | 2021-04-27 |
| Tekst źródłowy | URL |
| DOI | 10.1140/epjc/s10052-021-08994-0 |
| Rok publikacji | 2021 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp | |
| Creative Commons | |
| Czasopismo/seria | European Physical Journal, C |
Abstract
Long-lived particles decaying to e(+/-) mu(-/+)nu, with masses between 7 and 50 GeV/c(2) and lifetimes between 2 and 50 ps, are searched for by looking at displaced vertices containing electrons and muons of opposite charges. The search is performed using 5.4 fb(-1) of pp collisions collected with the LHCb detector at a centre-of-mass energy of root s = 13 TeV. Three mechanisms of production of long-lived particles are considered: the direct pair production from quark interactions, the pair production from the decay of a Standard-Model-like Higgs boson with a mass of 125 GeV/c(2), and the charged current production from an on-shell W boson with an additional lepton. No evidence of these long-lived states is obtained and upper limits on the production cross-section times branching fraction are set on the different production modes.