Measurement of the Production Cross Section of Prompt J/ψ Mesons in Association with a W^± Boson in pp Collisions √s=7 TeV with the ATLAS Detector

DSpace/Manakin Repository

Measurement of the Production Cross Section of Prompt J/ψ Mesons in Association with a W^± Boson in pp Collisions √s=7 TeV with the ATLAS Detector

Show full item record

Title: Measurement of the Production Cross Section of Prompt J/ψ Mesons in Association with a W^± Boson in pp Collisions √s=7 TeV with the ATLAS Detector
Author(s):
Aad, G.;
Abajyan, T.;
Abbott, B.;
Abdallah, J.;
Abdel Khalek, S.;
Abdinov, O.;
Aben, R.;
Haleem, M.;
Izen, Joseph M.;
Leyton, Michael;
Lou, Xinchou;
Namasivayam, Harisankar;
Reeves, Kendall;
Wong, Wei-Cheng
Date Created: 2014-04-28
Format: Text
Item Type: Article
Keywords: Show Keywords
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 √s= 7 TeV pp collisions at the LHC, the first observation is made of the production of W^± + prompt J/ψ events in hadronic collisions, using W^± → μν_μ and J/ψ → μ⁺μ⁻. A yield of 27.4_(-6.5)^(+7.5) W^± + prompt J/ψ events is observed, with a statistical significance of 5.1σ. 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.
Publisher: Springer
ISSN: 1029-8479
Source: Journal of High Energy Physics
Link to Related Resource: http://dx.doi.org/10.1007/JHEP04(2014)172
Persistent Link: http://hdl.handle.net/10735.1/3958
Bibliographic Citation: Aad, G., T. Abajyan, B. Abbott, J. Abdallah, et al. 2014. "Measurement of the production cross section of prompt J/ψ mesons in association with a W^± boson in pp collisions √s=7 TeV with the ATLAS detector." Journal of High Energy Physics 4(2014), doi:10.1007/JHEP04(2014)172
Terms of Use: CC BY 4.0 (Attribution)
©2014 CERN for the ATLAS Collaboration

Files in this item

Files Size Format View
NSM-FR-JMIzen-270939.58.pdf 554.3Kb PDF View/Open Article

This item appears in the following Collection(s)


Show full item record

CC BY 4.0 (Attribution) Except where otherwise noted, this item's license is described as CC BY 4.0 (Attribution)