@misc{10481/76910,
year = {2022},
month = {8},
url = {https://hdl.handle.net/10481/76910},
abstract = {This Letter reports the observation of 
W
W
W
 production and a measurement of its cross section using 
139
 
 
fb
−
1
 of proton-proton collision data recorded at a center-of-mass energy of 13 TeV by the ATLAS detector at the Large Hadron Collider. Events with two same-sign leptons (electrons or muons) and at least two jets, as well as events with three charged leptons, are selected. A multivariate technique is then used to discriminate between signal and background events. Events from 
W
W
W
 production are observed with a significance of 8.0 standard deviations, where the expectation is 5.4 standard deviations. The inclusive 
W
W
W
 production cross section is measured to be 
820
±
100
 
(
stat
)
±
80
 
(
syst
)
 
 
fb
, approximately 2.6 standard deviations from the predicted cross section of 
511
±
18
 
 
fb
 calculated at next-to-leading-order QCD and leading-order electroweak accuracy.},
organization = {ANPCyT, Argentina},
organization = {YerPhI,
Armenia},
organization = {ARC, Australia},
organization = {BMWFW and FWF, Austria},
organization = {ANAS, Azerbaijan},
organization = {SSTC, Belarus},
organization = {CNPq and FAPESP,
Brazil},
organization = {NSERC, NRC and CFI, Canada},
organization = {CERN; ANID,
Chile},
organization = {CAS, MOST and NSFC, China},
organization = {Minciencias,
Colombia},
organization = {MEYS CR, Czech Republic},
organization = {DNRF and
DNSRC, Denmark},
organization = {IN2P3-CNRS and CEA-DRF/IRFU,
France},
organization = {SRNSFG, Georgia},
organization = {BMBF, HGF and MPG,
Germany},
organization = {GSRI, Greece},
organization = {RGC and Hong Kong SAR,
China},
organization = {ISF and Benoziyo Center, Israel},
organization = {INFN, Italy},
organization = {MEXT and JSPS, Japan},
organization = {CNRST, Morocco},
organization = {NWO,
Netherlands},
organization = {RCN, Norway},
organization = {MEiN, Poland},
organization = {FCT,
Portugal},
organization = {MNE/IFA, Romania},
organization = {JINR},
organization = {MES of Russia and
NRC KI, Russian Federation},
organization = {MESTD, Serbia},
organization = {MSSR,
Slovakia},
organization = {ARRS and MIZŠ, Slovenia},
organization = {DSI/NRF, South
Africa},
organization = {MICINN, Spain},
organization = {SRC and Wallenberg Foundation,
Sweden},
organization = {SERI, SNSF and Cantons of Bern and Geneva,
Switzerland},
organization = {MOST, Taiwan},
organization = {TAEK, Turkey},
organization = {STFC,United
Kingdom},
organization = {DOE and NSF, USA},
organization = {BCKDF,
CANARIE, Compute Canada and CRC, Canada},
organization = {COST,
ERC, ERDF, Horizon 2020 and Marie Skłodowska-Curie
Actions, European Union},
organization = {Investissements d’Avenir Labex,
Investissements d’Avenir Idex and ANR, France},
organization = {DFG and
AvH Foundation, Germany},
organization = {Herakleitos, Thales and
Aristeia programmes cofinanced by EU-ESF and the
Greek NSRF, Greece},
organization = {BSF-NSF and GIF, Israel},
organization = {Norwegian Financial Mechanism 2014-2021, Norway},
organization = {NCN and NAWA, Poland},
organization = {La Caixa Banking Foundation,
CERCA Programme Generalitat de Catalunya and
PROMETEO and GenT Programmes Generalitat
Valenciana, Spain},
organization = {Göran Gustafssons Stiftelse, Sweden},
organization = {The Royal Society and Leverhulme Trust, United Kingdom.},
publisher = {American Physical Society},
title = {Observation of WWW Production in pp Collisions at p=13 TeV with the ATLAS Detector},
doi = {10.1103/PhysRevLett.129.061803},
author = {Aad, G. and Aguilar Saavedra, Juan Antonio and Rodríguez Chala, Mikael and Atlas Collaboration},
}