Publikation: Zeitschriftenartikel

Search for heavy neutral leptons in W+ +± jet decays

Grunddaten
Abstract
Autoren
Einrichtung

Grunddaten

Titel	Search for heavy neutral leptons in W+ +± jet decays
Erscheinungsjahr	2021
Seiten (von – bis)	1 – 15
Band	81
Heft-Nr.	3
Jahr	2021
Publikationsform	Elektronische Ressource
Publikationsart	Zeitschriftenartikel
Sprache	Englisch
DOI	10.1140/epjc/s10052-021-08973-5
Letzte Änderung	10.08.2022 06:01:46
Bearbeitungsstatus	durch UB Rostock abschließend validiert
Dauerhafte URL	http://purl.uni-rostock.de/fodb/pub/68112
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Abstract

A search is performed for heavy neutrinos in the decay of a W boson into two muons and a jet. The data set corresponds to an integrated luminosity of approximately $$3.0\, \text {fb} ^{-1} $$of proton-proton collision data at centre-of-mass energies of 7 and $$8\, \text {TeV} $$collected with the LHCb experiment. Both same-sign and opposite-sign muons in the final state are considered. Data are found to be consistent with the expected background. Upper limits on the coupling of a heavy neutrino with the Standard Model neutrino are set at $$95\%$$confidence level in the heavy-neutrino mass range from 5 to $$50\, \text {GeV/}c^2 $$. These are of the order of $$10^{-3}$$for lepton-number-conserving decays and of the order of $$10^{-4}$$for lepton-number-violating heavy-neutrino decays.

Autoren

Aaij, Roel
Archilli, Flavio
Bachmann, Sebastian
Berninghoff, Daniel
Borsato, Martino
Dziewiecki, Michal
Frau, Giulia
Gerick, David
Grabowski, Jascha
Günther, PaulAndré
Han, Xiaoxue
Hansmann-Menzemer, Stephanie
Hu, Jiangqiao
Kopecná, Renata
Leverington, Blake
Li, Peilian
Malygina, Hanna
Marks, Jörg
Meinert, Nis
Neubert, Sebastian
Piucci, Alessio
Sarpis, Mindaugas
Schmelling, Michael
Skidmore, Nicola
Stemmle, Simon
Unverzagt, Daniel Joachim
Uwer, Ulrich
Viemann, Harald
Waldi, Roland
Wang, Chishuai
Witola, Lukas
Zhelezov, Alexey

Einrichtung

MNF/Institut für Physik (IfPH)