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Title
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Measurement of the relative prompt production rate of and in pp collisions at
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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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| Ameasurement is presented of the relative prompt production rate of chi(c2) and chi(c1) with 4.6 fb(-1) of data collected by the CMS experiment at the LHC in pp collisions at root s = 7 TeV. The two states are measured via their radiative decays chi(c) -> J/psi + gamma, with the photon converting into an e(+)e(-) pair for J/psi rapidity \y(J/psi)\ < 1.0 and photon transverse momentum p(T)(gamma) > 0.5 GeV/c. The measurement is given for six intervals of p(T)(J/psi) between 7 and 25 GeV/c. The results are compared to theoretical predictions. |
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Language
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English
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Source (journal)
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European physical journal : C : particles and fields. - Berlin
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Publication
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Berlin
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2012
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ISSN
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1434-6044
1434-6052
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DOI
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10.1140/EPJC/S10052-012-2251-3
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Volume/pages
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72
:12
(2012)
, 22 p.
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Article Reference
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2251
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ISI
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000314407400009
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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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