In:
The European Physical Journal C, Springer Science and Business Media LLC, Vol. 80, No. 1 ( 2020-01)
Kurzfassung:
A search for $$\text {W}\text {W}$$ WW production from double-parton scattering processes using same-charge electron-muon and dimuon events is reported, based on proton-proton collision data collected at a center-of-mass energy of $$13\,\text {TeV} $$ 13 TeV . The analyzed data set corresponds to an integrated luminosity of $$77.4{\,\text {fb}^{-1}} $$ 77.4 fb - 1 , collected using the CMS detector at the LHC in 2016 and 2017. Multivariate classifiers are used to discriminate between the signal and the dominant background processes. A maximum likelihood fit is performed to extract the signal cross section. This leads to the first evidence for $$\text {W}\text {W}$$ WW production via double-parton scattering, with a significance of 3.9 standard deviations. The measured inclusive cross section is $$1.41\pm 0.28\,\text {(stat)} \pm 0.28\,\text {(syst)} \,\text {pb} $$ 1.41 ± 0.28 (stat) ± 0.28 (syst) pb .
Materialart:
Online-Ressource
ISSN:
1434-6044
,
1434-6052
DOI:
10.1140/epjc/s10052-019-7541-6
Sprache:
Englisch
Verlag:
Springer Science and Business Media LLC
Publikationsdatum:
2020
ZDB Id:
1397769-6
ZDB Id:
1459069-4
