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Title
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Measurement of J/ and (2S) prompt double-differential cross sections in pp collisions 7 TeV
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Author
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Institution/Organisation
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CMS Collaboration
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Abstract
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| The double-differential cross sections of promptly produced J/psi and psi(2S) mesons are measured in pp collisions at root s = 7 TeV, as a function of transverse momentum p(T) and absolute rapidity \y\. The analysis uses J/psi and psi(2S) dimuon samples collected by the CMS experiment, corresponding to integrated luminosities of 4.55 and 4.90 fb(-1), respectively. The results are based on a two-dimensional analysis of the dimuon invariant mass and decay length, and extend to p(T) = 120 and 100 GeV for the J/psi and psi(2S), respectively, when integrated over the interval \y\ < 1.2. The ratio of the psi(2S) to J/psi cross sections is also reported for \y\ < 1.2, over the range 10 < p(T) < 100 GeV. These are the highest p(T) values for which the cross sections and ratio have been measured. |
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Language
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English
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Source (journal)
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Physical review letters. - New York, N.Y., 1958, currens
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Publication
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New York, N.Y.
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American Physical Society
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2015
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ISSN
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0031-9007
[print]
1079-7114
[online]
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DOI
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10.1103/PHYSREVLETT.114.191802
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Volume/pages
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114
:19
(2015)
, 16 p.
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Article Reference
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191802
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ISI
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000354552000003
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Pubmed ID
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26024161
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Medium
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E-only publicatie
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Full text (Publisher's DOI)
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Full text (open access)
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