Title
Measurement of J/<tex>$\psi$</tex> and <tex>$\psi$</tex>(2S) prompt double-differential cross sections in pp collisions <tex>$\sqrt{s}=$</tex>7 TeV Measurement of J/<tex>$\psi$</tex> and <tex>$\psi$</tex>(2S) prompt double-differential cross sections in pp collisions <tex>$\sqrt{s}=$</tex>7 TeV
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
New York, N.Y. ,
Subject
Physics
Source (journal)
Physical review letters. - New York, N.Y.
Volume/pages
114(2015) :19 , 16 p.
ISSN
0031-9007
0031-9007
Article Reference
191802
Carrier
E-only publicatie
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
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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Full text (open access)
https://repository.uantwerpen.be/docman/irua/ec69c5/126368.pdf
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