Evidence for WW production from double-parton interactions in proton–proton collisions at √s=13TeV

CMS Collaboration

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

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.

Original language English 41 European Physical Journal C 80 1 https://doi.org/10.1140/epjc/s10052-019-7541-6 Published - 1 Jan 2020

Keywords

• CMS
• Physics
• WW production

Fingerprint

Dive into the research topics of 'Evidence for WW production from double-parton interactions in proton–proton collisions at √s=13TeV'. Together they form a unique fingerprint.