TY - JOUR
T1 - Search for chargino-neutralino pair production in final states with three leptons and missing transverse momentum in root s=13 TeV pp collisions with the ATLAS detector
AU - Aad, G.
AU - Abbott, B.
AU - Abbott, DC
AU - Abud, AA
AU - Abeling, K.
AU - Abhayasinghe, D.K.
AU - Abidi, S.H.
AU - AbouZeid, Ossama Sherif Alexander
AU - Abramowicz, H.
AU - Abreu, H.
AU - Camplani, Alessandra
AU - Dam, Mogens
AU - Hansen, Jørgen Beck
AU - Hansen, Jørn Dines
AU - Hansen, Peter Henrik
AU - Ignazzi, Rosanna
AU - Petersen, Troels Christian
AU - Wiglesworth, Graig
AU - Xella, Stefania
AU - ATLAS Collaboration
PY - 2021
Y1 - 2021
N2 - A search for chargino–neutralino pair production in three-lepton final states with missing transverse momentum is presented. The study is based on a dataset of s√=13 TeV pp collisions recorded with the ATLAS detector at the LHC, corresponding to an integrated luminosity of 139 fb−1. No significant excess relative to the Standard Model predictions is found in data. The results are interpreted in simplified models of supersymmetry, and statistically combined with results from a previous ATLAS search for compressed spectra in two-lepton final states. Various scenarios for the production and decay of charginos (χ~±1) and neutralinos (χ~02) are considered. For pure higgsino χ~±1χ~02 pair-production scenarios, exclusion limits at 95% confidence level are set on χ~02 masses up to 210 GeV. Limits are also set for pure wino χ~±1χ~02 pair production, on χ~02 masses up to 640 GeV for decays via on-shell W and Z bosons, up to 300 GeV for decays via off-shell W and Z bosons, and up to 190 GeV for decays via W and Standard Model Higgs bosons
AB - A search for chargino–neutralino pair production in three-lepton final states with missing transverse momentum is presented. The study is based on a dataset of s√=13 TeV pp collisions recorded with the ATLAS detector at the LHC, corresponding to an integrated luminosity of 139 fb−1. No significant excess relative to the Standard Model predictions is found in data. The results are interpreted in simplified models of supersymmetry, and statistically combined with results from a previous ATLAS search for compressed spectra in two-lepton final states. Various scenarios for the production and decay of charginos (χ~±1) and neutralinos (χ~02) are considered. For pure higgsino χ~±1χ~02 pair-production scenarios, exclusion limits at 95% confidence level are set on χ~02 masses up to 210 GeV. Limits are also set for pure wino χ~±1χ~02 pair production, on χ~02 masses up to 640 GeV for decays via on-shell W and Z bosons, up to 300 GeV for decays via off-shell W and Z bosons, and up to 190 GeV for decays via W and Standard Model Higgs bosons
U2 - 10.1140/epjc/s10052-021-09749-7
DO - 10.1140/epjc/s10052-021-09749-7
M3 - Journal article
VL - 81
JO - The European Physical Journal C: Particles and Fields
JF - The European Physical Journal C: Particles and Fields
SN - 1434-6044
IS - 12
M1 - 1118
ER -