Search for chargino-neutralino production with mass splittings near the electroweak scale in three-lepton final states in <i>√s</i>=13 TeV <i>pp</i> collisions with the ATLAS detector

ATLAS Collaboration

doi:10.1103/physrevd.101.072001

Scientific article

English

Search for chargino-neutralino production with mass splittings near the electroweak scale in three-lepton final states in √s=13 TeV pp collisions with the ATLAS detector

Contributors

ATLAS Collaboration

Published in

Physical review. D, vol. 101, no. 7, 072001

Publication date

2020

First online date

2020-04-07

Abstract

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.

Keywords

Particle Physics Experiments
P p: colliding beams
New physics: search for
Scale: electroweak interaction
P p: scattering
Vector boson: associated production
Vector boson: leptonic decay
Chargino: associated production
Neutralino: associated production
Mass difference
Sparticle: pair production
ATLAS
CERN LHC Coll
Final state: (3lepton)
Supersymmetry: parameter space
Phase space
Channel cross section: upper limit
Chargino: mass: lower limit
Neutralino: mass: lower limit
Data analysis method
Experimental results
13000 GeV-cms
S046WNO
S046ZNO

UNIGE affiliation entities

Faculté des sciences / Section de physique / Département de physique nucléaire et corpusculaire

Citation (ISO format)

ATLAS Collaboration. Search for chargino-neutralino production with mass splittings near the electroweak scale in three-lepton final states in √s=13 TeV pp collisions with the ATLAS detector. In: Physical review. D, 2020, vol. 101, n° 7, p. 072001. doi: 10.1103/physrevd.101.072001

Article (Published version)

CC BY-4.0

Identifiers

PID : unige:178359
DOI : 10.1103/physrevd.101.072001
arXiv : 1912.08479

Additional URL for this publication

https://link.aps.org/doi/10.1103/PhysRevD.101.072001

Journal ISSN

2470-0010

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24/06/2024 08:02:45

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01/07/2024 09:36:48

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13/10/2025 13:39:22

Status update