Measurement of the Wγ Production Cross Section in Proton-Proton Collisions at s =13 TeV and Constraints on Effective Field Theory Coefficients

The CMS collaboration

Результат исследования: Научные публикации в периодических изданияхстатьярецензирование

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Аннотация

A fiducial cross section for Wγ production in proton-proton collisions is measured at a center-of-mass energy of 13 TeV in 137 fb-1 of data collected using the CMS detector at the LHC. The W→eν and μν decay modes are used in a maximum-likelihood fit to the lepton-photon invariant mass distribution to extract the combined cross section. The measured cross section is compared with theoretical expectations at next-to-leading order in quantum chromodynamics. In addition, 95% confidence level intervals are reported for anomalous triple-gauge couplings within the framework of effective field theory.

Язык оригиналаанглийский
Номер статьи252002
ЖурналPhysical Review Letters
Том126
Номер выпуска25
DOI
СостояниеОпубликовано - 25 июн 2021

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