Observation of WWW Production in pp Collisions at s =13 TeV with the ATLAS Detector
Küçük Resim Yok
Tarih
2022
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
American Physical Society
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
This Letter reports the observation of WWW 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 WWW production are observed with a significance of 8.0 standard deviations, where the expectation is 5.4 standard deviations. The inclusive WWW 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. © 2022 CERN.
Açıklama
Anahtar Kelimeler
Elementary Particles, Statistics, A-Center, Atlas Detectors, Center-Of-Mass Energies, Centre-Of-Mass Energies, Charged Leptons, Large Hadron Collider, Large-Hadron Colliders, Measurements Of, Proton Proton Collisions, Standard Deviation, Tellurium Compounds, Article, Electron, Expectation, Hadron, Human, Lepton
Kaynak
Physical Review Letters
WoS Q Değeri
Scopus Q Değeri
Q1
Cilt
129
Sayı
6
