%0 Journal Article
%T Discriminating between lepton number violating scalars using events with four and three charged leptons at the LHC
%A del Aguila, F.
%A Chala, M.
%A Santamaria, A.
%A Wudka, J.
%J Physics Letters B
%D 2013
%V 725
%N 4-5
%I Elsevier Science Bv
%@ 0370-2693
%G English
%F delAguila_etal2013
%O WOS:000324223100017
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=1590), last updated on Thu, 17 Oct 2013 10:33:10 +0000
%X Many Standard Model extensions predict doubly-charged scalars; in particular, all models with resonances in charged lepton-pair channels with non-vanishing lepton number; if these are pair produced at the LHC, the observation of their decay into l(-/+)l(-/+)W(-/+)W(-/+) will be necessary in order to establish their lepton-number violating character, which is generally not straightforward. Nonetheless, the analysis of events containing four charged leptons (including scalar decays into one or two taus as well as into W bosons) makes it possible to determine whether the doubly-charged excitation belongs to a multiplet with weak isospin T = 0,1/2,1,3/2 or 2 (assuming there are no excitations with charge > 2); though discriminating between the isosinglet and isodoublet cases is possible only if charged-current events cannot produce the doubly-charged isosinglet.
%R 10.1016/j.physletb.2013.07.014
%U http://arxiv.org/abs/1305.3904
%U https://doi.org/10.1016/j.physletb.2013.07.014
%P 310-315