Observation of Same-Sign WW Production from Double Parton Scattering in Proton-Proton Collisions at Formula Presented
Küçük Resim Yok
Tarih
2023
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
American Physical Society
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
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.
Açıklama
Anahtar Kelimeler
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
Kaynak
Physical Review Letters
WoS Q Değeri
Scopus Q Değeri
Q1
Cilt
131
Sayı
9
