Measurement of the production cross section of prompt J/? mesons in association with a W+- boson in pp collisions at s = 7 TeV with the ATLAS detector
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F14%3A00433041" target="_blank" >RIV/68378271:_____/14:00433041 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1007/JHEP04(2014)172" target="_blank" >http://dx.doi.org/10.1007/JHEP04(2014)172</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/JHEP04(2014)172" target="_blank" >10.1007/JHEP04(2014)172</a>
Alternative languages
Result language
angličtina
Original language name
Measurement of the production cross section of prompt J/? mesons in association with a W+- boson in pp collisions at s = 7 TeV with the ATLAS detector
Original language description
The process pp--> W + J/psi 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 sqrt{s} =7 TeV pp collisions at the LHC, the first observation is made of the production of W + prompt J/psi events in hadronic collisions, using W-->mu+nu and J/psi-->mu+mu. A yield of 27.4+7.5-6.5 W + prompt J/psi events is observed, with a statistical significance of 5.1 sigma. 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.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BF - Elementary particle theory and high energy physics
OECD FORD branch
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Result continuities
Project
<a href="/en/project/LG13009" target="_blank" >LG13009: International experiment ATLAS-CERN</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of High Energy Physics
ISSN
1029-8479
e-ISSN
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Volume of the periodical
2014
Issue of the periodical within the volume
4
Country of publishing house
US - UNITED STATES
Number of pages
37
Pages from-to
1-37
UT code for WoS article
000335732000001
EID of the result in the Scopus database
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