Observation of Same-Sign Ww Production From Double Parton Scattering in Proton-Proton Collisions at Formula Presented
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Date
2023
Authors
Gürpınar Güler, Emine
Güler, Yalçın
Journal Title
Journal ISSN
Volume Title
Publisher
American Physical Society
Open Access Color
HYBRID
Green Open Access
Yes
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Publicly Funded
Yes
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Average
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Average
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Abstract
The first observation of the production of Formula Presented bosons from double parton scattering processes using same-sign electron-muon and dimuon events in proton-proton collisions is reported. The data sample corresponds to an integrated luminosity of Formula Presented recorded at a center-of-mass energy of 13 TeV using the CMS detector at the CERN LHC. Multivariate discriminants are used to distinguish the signal process from the main backgrounds. A binned maximum likelihood fit is performed to extract the signal cross section. The measured cross section for production of same-sign Formula Presented bosons decaying leptonically is Formula Presented, whereas the measured fiducial cross section is Formula Presented. The observed significance of the signal is 6.2 standard deviations above the background-only hypothesis. © 2023 CERN, for the CMS Collaboration.
Description
Keywords
Maximum likelihood, Signal processing, Tellurium compounds, A-center, Center-of-mass energies, Centre-of-mass energies, CMS detectors, Data sample, Integrated luminosity, Maximum-likelihood, Parton scattering, Proton proton collisions, Scattering process, Bosons, article, boson, human, luminance, maximum likelihood method, p p: scattering, data analysis method, CMS experiment, CERN Lab, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], 13000 GeV-cms, FOS: Physical sciences, W: leptonic decay, 530, High Energy Physics - Experiment, PHYSICS, EVENTS, W: pair production, High Energy Physics - Experiment (hep-ex), same sign, statistical analysis, parton: multiple scattering, electron muon, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], PROBE, info:eu-repo/classification/ddc/530, (P)OVER-BAR-P COLLISIONS; MEASURING MASSES; LHC; PHYSICS; EVENTS; PROBE, LHC, Double Parton Scattering, QCD, CMS, (P)OVER-BAR-P COLLISIONS, hep-ex, background, CMS, Physics, dilepton: final state, ddc:530, CMS, LHC, WW production, cross section: measured, muon: pair production, CMS, WW production, CERN LHC Coll, Physics and Astronomy, MEASURING MASSES, LHC, (P)over-bar-p collisions; Measuring masses; lhc; Events; Probe; Maximum likelihood; Signal processing; Tellurium compounds; A-center; Center-of-mass energies; Centre-of-mass energies; CMS detectors; Data sample; Integrated luminosity; Maximum-likelihood; Parton scattering; Proton proton collisions; Scattering process, p p: colliding beams, channel cross section: measured, experimental results
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Fields of Science
Citation
WoS Q
Q1
Scopus Q
Q1
OpenCitations Citation Count
3
Source
Physical Review Letters
Volume
131
Issue
9
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End Page
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CrossRef : 3
PubMed : 1
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Mendeley Readers : 6
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