CERN Accelerating science

ATLAS Note
Report number	ATLAS-CONF-2023-023
Title	Measurement and interpretation of same-sign $W$ boson pair production in association with two jets in $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector
Corporate Author(s)	The ATLAS collaboration
Collaboration	ATLAS Collaboration
Publication	2023
Imprint	19 May 2023
Number of pages	49
Note	All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/CONFNOTES/ATLAS-CONF-2023-023
In:	11th Large Hadron Collider Physics Conference 2023, Belgrade, Serbia, 22 - 26 May 2023, pp.ATLAS-CONF-2023-023
Subject category	Particle Physics - Experiment
Accelerator/Facility, Experiment	CERN LHC ; ATLAS
Abstract	This paper presents the measurement of fiducial and differential cross sections for the electroweak and inclusive production of a same-sign $W$ boson pair in association with two jets ($W^\pm W^\pm jj$) using $139$ fb$^{-1}$ of proton-proton collision data recorded at a centre-of-mass energy of $\sqrt{s}=13$ TeV by the ATLAS detector at the Large Hadron Collider. The analysis is performed in the detector fiducial phase-space region defined by the presence of two same-charge leptons, electron or muon, and at least two jets with a large invariant mass and rapidity difference. The measured fiducial cross sections for electroweak $W^\pm W^\pm jj$ production and for inclusive $W^\pm W^\pm jj$ production are $2.88 \pm 0.22\, \text{(stat.)} \pm 0.19\, \text{(syst.)}$ fb and $3.35 \pm 0.22\, \text{(stat.)} \pm 0.20\, \text{(syst.)}$ fb, respectively, in agreement with the Standard Model predictions. The data collected are also used to constrain anomalous quartic gauge couplings by extracting confidence level intervals of 95\% on dimension-8 operators. A search for doubly charged Higgs bosons produced in vector boson fusion processes and decaying into two same-sign $W$ boson pairs is performed.
Related document	superseded by: CERN-EP-2023-221

Corresponding record in: Inspire