TY  - JOUR
AU  - Aguilar-Saavedra, J. A.
AU  - Casas, J. A.
AU  - Quilis, J.
AU  - Ruiz de Austri, R.
PY  - 2020
DA  - 2020//
TI  - Multilepton dark matter signals
T2  - J. High Energy Phys.
JO  - Journal of High Energy Physics
SP  - 069
EP  - 24pp
VL  - 04
IS  - 4
PB  - Springer
KW  - Beyond Standard Model
KW  - Gauge Symmetry
AB  - The signatures of dark matter at the LHC commonly involve, in simplified scenarios, the production of a single particle plus large missing energy, from the undetected dark matter. However, in Z ' -portal scenarios anomaly cancellation requires the presence of extra dark leptons in the dark sector. We investigate the signatures of the minimal scenarios of this kind, which involve cascade decays of the extra Z ' boson into the dark leptons, identifying a four-lepton signal as the most promising one. We estimate the sensitivity to this signal at the LHC, the high-luminosity LHC upgrade, a possible high-energy upgrade, as well as a future circular collider. For Z ' couplings compatible with current dijet constraints the multilepton signals can reach the 5 sigma level already at Run 2 of the LHC. At future colliders, couplings two orders of magnitude smaller than the electroweak coupling can be probed with 5 sigma sensitivity.
SN  - 1029-8479
UR  - https://arxiv.org/abs/1911.03486
UR  - https://doi.org/10.1007/JHEP04(2020)069
DO  - 10.1007/JHEP04(2020)069
LA  - English
N1  - WOS:000528689700001
ID  - Aguilar-Saavedra_etal2020
ER  -