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|Title:||Observation of photon-induced W+W− production in pp collisions at √s=13 TeV using the ATLAS detector|
|Other Titles:||Observation of photon-induced W+W- production in pp collisions at root s=13 TeV using the ATLAS detector|
Abed Abud, A.
Adam Bourdarios, C.
|Citation:||Physics Letters B: Nuclear Physics and Particle Physics, 2021; 816:136190-1-136190-24|
|G. Aad, B. Abbott, D.C. Abbott, A. Abed Abud, K. Abeling, D.K. Abhayasinghe ... Paul Jackson ... et al.|
|Abstract:||This letter reports the observation of photon-induced production of W-boson pairs, γγ→WW. The analysis uses 139 fb−1of LHC proton–proton collision data taken at √s=13 TeV recorded by the ATLAS experiment during the years 2015–2018. The measurement is performed selecting one electron and one muon, corresponding to the decay of the diboson system as WW→e±νμ∓νfinal state. The background-only hypothesis is rejected with a significance of well above 5 standard deviations consistent with the expectation from Monte Carlo simulation. A cross section for the γγ→WWprocess of 3.13 ±0.31(stat.)±0.28(syst.) fb is measured in a fiducial volume close to the acceptance of the detector, by requiring an electron and a muon of opposite signs with large dilepton transverse momentum and exactly zero additional charged particles. This is found to be in agreement with the Standard Model prediction.|
|Rights:||© 2021 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP3|
|Appears in Collections:||Aurora harvest 8|
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