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Measurement of the production cross section of prompt J/ψ mesons in association with a W ± boson in pp collisions at $ \sqrts $ = 7 TeV with the ATLAS detector

Aad, G.
•
Abajyan, T.
•
Abbott, B.
altro
GIORDANI, Mario
2014
  • journal article

Periodico
JOURNAL OF HIGH ENERGY PHYSICS
Abstract
The process pp → W±J/ψ provides a powerful probe of the production mechanism of charmonium in hadronic collisions, and is also sensitive to multiple parton interactions in the colliding protons. Using the 2011 ATLAS dataset of 4.5 fb-1 of p s = 7TeV pp collisions at the LHC, the first observation is made of the production of W± + prompt J/ events in hadronic collisions, using W± → μ and J/ψ → μ+μ-. A yield of 27.4±7.5 -6.5 W± + prompt J/ψ events is observed, with a statistical significance of 5.1. The production rate as a ratio to the inclusive W± boson production rate is measured, and the double parton scattering contribution to the cross section is estimated. Copyright CERN, for the benefit of the ATLAS Collaboration.
DOI
10.1007/JHEP04(2014)172
WOS
WOS:000335732000001
Archivio
http://hdl.handle.net/11390/1109877
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84901707109
Diritti
metadata only access
Scopus© citazioni
51
Data di acquisizione
Jun 2, 2022
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Web of Science© citazioni
67
Data di acquisizione
Mar 26, 2024
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