%0 Journal Article
%T Search for heavy neutral leptons in W plus . μplus μ+/- jet decays
%A LHCb Collaboration (Aaij, R. et al
%A Henry, L.
%A Jashal, B. K.
%A Martinez-Vidal, F.
%A Oyanguren, A.
%A Remon Alepuz, C.
%A Ruiz Vidal, J.
%A Sanchez Mayordomo, C.
%J European Physical Journal C
%D 2021
%V 81
%N 3
%I Springer
%@ 1434-6044
%G English
%F LHCbCollaborationAaij_etal2021
%O WOS:000631882200001
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=4755), last updated on Sun, 04 Apr 2021 17:19:10 +0000
%X 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 fb-1 of proton-proton collision data at centre-of-mass energies of 7 and 8 TeV collected with the LHCb experiment. Both same-sign and opposite-signmuons 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 50GeV/c2. 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.
%R 10.1140/epjc/s10052-021-08973-5
%U https://arxiv.org/abs/2011.05263
%U https://doi.org/10.1140/epjc/s10052-021-08973-5
%P 248 - 15pp