TY  - JOUR
AU  - del Aguila, F.
AU  - Chala, M.
AU  - Santamaria, A.
AU  - Wudka, J.
PY  - 2013
DA  - 2013//
TI  - Discriminating between lepton number violating scalars using events with four and three charged leptons at the LHC
T2  - Phys. Lett. B
JO  - Physics Letters B
SP  - 310
EP  - 315
VL  - 725
IS  - 4-5
PB  - Elsevier Science Bv
AB  - 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.
SN  - 0370-2693
UR  - http://arxiv.org/abs/1305.3904
UR  - https://doi.org/10.1016/j.physletb.2013.07.014
DO  - 10.1016/j.physletb.2013.07.014
LA  - English
N1  - WOS:000324223100017
ID  - delAguila_etal2013
ER  -