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arXiv: 1912.08479
A search for supersymmetry through the pair production of electroweakinos with mass splittings near the electroweak scale and decaying via on-shell W and Z bosons is presented for a three-lepton final state. The analyzed proton-proton collision data taken at a center-of-mass energy of s=13 TeV were collected between 2015 and 2018 by the ATLAS experiment at the Large Hadron Collider, corresponding to an integrated luminosity of 139 fb−1. A search, emulating the recursive jigsaw reconstruction technique with easily reproducible laboratory-frame variables, is performed. The two excesses observed in the 2015–2016 data recursive jigsaw analysis in the low-mass three-lepton phase space are reproduced. Results with the full data set are in agreement with the Standard Model expectations. They are interpreted to set exclusion limits at the 95% confidence level on simplified models of chargino-neutralino pair production for masses up to 345 GeV.
Physical review / D D 101(7), 072001 (2020). doi:10.1103/PhysRevD.101.072001
Published by Inst.302363, Melville, NY
13000 GeV-cms, S046WNO, channel cross section: upper limit, Chargino: associated production, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Vector boson: associated production, Particle Physics Experiments, info:eu-repo/classification/ddc/530, E(+)E(-) COLLISIONS; CROSS-SECTION; SUPERSYMMETRY; EXTENSION; DECAY, vector boson: associated production, Chargino: mass: lower limit, new physics: search for, Channel cross section: upper limit, Data analysis method, scale: electroweak interaction, Particle physics, ATLAS, neutralino: associated production, final state: (3lepton), Settore FIS/01 - FISICA SPERIMENTALE, neutralino: mass: lower limit, Weakly interacting massive particles, P p: scattering, CERN LHC Coll, Neutralino: mass: lower limit, Hadron-hadron collisions ; supersymmetry, Scale: electroweak interaction, up: mass, data analysis method, p p: scattering, Final state: (3lepton), [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], S046ZNO, New physics: search for, FOS: Physical sciences, -, Phase space, 530, phase space, Neutralino: associated production, Superpartners, Experimental results, High energy physics, Mass difference, chargino: mass: lower limit, P p: colliding beams, Sparticle: pair production, Supersymmetry: parameter space, 500, supersymmetry: parameter space, mass difference, Supersymmetric models, sparticle: pair production, pair production, vector boson: leptonic decay, chargino: associated production, Vector boson: leptonic decay, supersymmetry, p p: colliding beams, experimental results, 500.2
13000 GeV-cms, S046WNO, channel cross section: upper limit, Chargino: associated production, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Vector boson: associated production, Particle Physics Experiments, info:eu-repo/classification/ddc/530, E(+)E(-) COLLISIONS; CROSS-SECTION; SUPERSYMMETRY; EXTENSION; DECAY, vector boson: associated production, Chargino: mass: lower limit, new physics: search for, Channel cross section: upper limit, Data analysis method, scale: electroweak interaction, Particle physics, ATLAS, neutralino: associated production, final state: (3lepton), Settore FIS/01 - FISICA SPERIMENTALE, neutralino: mass: lower limit, Weakly interacting massive particles, P p: scattering, CERN LHC Coll, Neutralino: mass: lower limit, Hadron-hadron collisions ; supersymmetry, Scale: electroweak interaction, up: mass, data analysis method, p p: scattering, Final state: (3lepton), [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], S046ZNO, New physics: search for, FOS: Physical sciences, -, Phase space, 530, phase space, Neutralino: associated production, Superpartners, Experimental results, High energy physics, Mass difference, chargino: mass: lower limit, P p: colliding beams, Sparticle: pair production, Supersymmetry: parameter space, 500, supersymmetry: parameter space, mass difference, Supersymmetric models, sparticle: pair production, pair production, vector boson: leptonic decay, chargino: associated production, Vector boson: leptonic decay, supersymmetry, p p: colliding beams, experimental results, 500.2
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