Title
Inelastic production of <tex>$J/\Psi$</tex> mesons in photoproduction and deep inelastic scattering at HERAInelastic production of <tex>$J/\Psi$</tex> mesons in photoproduction and deep inelastic scattering at HERA
Author
Faculty/Department
Faculty of Sciences. Physics
Research group
Elementary Particle Physics
Publication type
article
Publication
Berlin,
Subject
Physics
Source (journal)
European physical journal : C : particles and fields. - Berlin
Volume/pages
68(2010):3/4, p. 401-420
ISSN
1434-6044
ISI
000280642600004
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
A measurement is presented of inelastic photo- and electroproduction of J/ψ mesons in ep scattering at HERA. The data were recorded with the H1 detector in the period from 2004 to 2007. Single and double differential cross sections are determined and the helicity distributions of the J/ψ mesons are analysed. The results are compared to theoretical predictions in the colour singlet model and in the framework of non-relativistic QCD. Calculations in the colour singlet model using a k T factorisation ansatz are able to give a good description of the data, while colour singlet model calculations to next-to-leading order in collinear factorisation underestimate the data.
E-info
https://repository.uantwerpen.be/docman/iruaauth/b00854/5f08311d56a.pdf
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