A search for 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 13TeV. The analyzed data set corresponds to an integrated luminosity of 77.4fb-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 WW production via double-parton scattering, with a significance of 3.9 standard deviations. The measured inclusive cross section is 1.41±0.28(stat)±0.28(syst)pb.
TY - JOUR
AU - Sirunyan, A M
AU - Tumasyan, A
AU - Adam, W
AU - Ambrogi, F
AU - Adžić, Petar
AU - Ćirković, Predrag
AU - Devetak, Damir
AU - Đorđević, Miloš
AU - Milenović, Predrag
AU - Milošević, Jovan
AU - Stojanović, Milan
PY - 2020
UR - http://vinar.vin.bg.ac.rs/handle/123456789/8575
AB - A search for 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 13TeV. The analyzed data set corresponds to an integrated luminosity of 77.4fb-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 WW production via double-parton scattering, with a significance of 3.9 standard deviations. The measured inclusive cross section is 1.41±0.28(stat)±0.28(syst)pb.
T2 - European Physical Journal C
T1 - Evidence for WW production from double-parton interactions in proton–proton collisions at √s=13TeV
VL - 80
IS - 1
DO - 10.1140/epjc/s10052-019-7541-6
ER -
@article{
author = "Sirunyan, A M and Tumasyan, A and Adam, W and Ambrogi, F and Adžić, Petar and Ćirković, Predrag and Devetak, Damir and Đorđević, Miloš and Milenović, Predrag and Milošević, Jovan and Stojanović, Milan",
year = "2020",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/8575",
abstract = "A search for 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 13TeV. The analyzed data set corresponds to an integrated luminosity of 77.4fb-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 WW production via double-parton scattering, with a significance of 3.9 standard deviations. The measured inclusive cross section is 1.41±0.28(stat)±0.28(syst)pb.",
journal = "European Physical Journal C",
title = "Evidence for WW production from double-parton interactions in proton–proton collisions at √s=13TeV",
volume = "80",
number = "1",
doi = "10.1140/epjc/s10052-019-7541-6"
}
Sirunyan AM, Tumasyan A, Adam W, Ambrogi F, Adžić P, Ćirković P, Devetak D, Đorđević M, Milenović P, Milošević J, Stojanović M. Evidence for WW production from double-parton interactions in proton–proton collisions at √s=13TeV. European Physical Journal C. 2020;80(1)
Sirunyan, A. M., Tumasyan, A., Adam, W., Ambrogi, F., Adžić, P., Ćirković, P., Devetak, D., Đorđević, M., Milenović, P., Milošević, J.,& Stojanović, M. (2020). Evidence for WW production from double-parton interactions in proton–proton collisions at √s=13TeV.
European Physical Journal C, 80(1).
https://doi.org/10.1140/epjc/s10052-019-7541-6
Sirunyan A M, Tumasyan A, Adam W, Ambrogi F, Adžić Petar, Ćirković Predrag, Devetak Damir, Đorđević Miloš, Milenović Predrag, Milošević Jovan, Stojanović Milan, "Evidence for WW production from double-parton interactions in proton–proton collisions at √s=13TeV" 80, no. 1 (2020),
https://doi.org/10.1140/epjc/s10052-019-7541-6 .
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