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Measurement of the production cross section of prompt j/psi mesons in association with a W (+/-) boson in pp collisions root s=7 TeV with the ATLAS detector

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...

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Publication status:
Published

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Publisher copy:
10.1007/JHEP04(2014)172

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Journal:
JOURNAL OF HIGH ENERGY PHYSICS More from this journal
Volume:
2014
Issue:
4
Publication date:
2014-04-28
DOI:
EISSN:
1029-8479
ISSN:
1029-8479
Keywords:
Pubs id:
pubs:466952
UUID:
uuid:e91bd368-8bdb-4f6e-aefd-f55bff9143ed
Local pid:
pubs:466952
Source identifiers:
466952
Deposit date:
2014-06-17

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