Evidence for simultaneous production of J/ψ and ϒ Mesons

Bertram, Iain Alexander and Borissov, Guennadi and Fox, Harald and Ratoff, Peter Neil and Ross, Anthony and Williams, Mark Richard James and Price, Darren (2016) Evidence for simultaneous production of J/ψ and ϒ Mesons. Physical review letters, 116 (8). ISSN 1079-7114

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We report evidence for the simultaneous production of J/ψ and ϒ mesons in 8.1  fb−1 of data collected at s√=1.96  TeV by the D0 experiment at the Fermilab pp¯ Tevatron Collider. Events with these characteristics are expected to be produced predominantly by gluon-gluon interactions. In this analysis, we extract the effective cross section characterizing the initial parton spatial distribution, σeff=2.2±0.7(stat)±0.9(syst)  mb.

Item Type: Journal Article
Journal or Publication Title: Physical review letters
Uncontrolled Keywords: /dk/atira/pure/subjectarea/asjc/3100
Departments: Faculty of Science and Technology > Physics
ID Code: 78402
Deposited By: ep_importer_pure
Deposited On: 14 Apr 2016 08:34
Refereed?: Yes
Published?: Published
Last Modified: 19 Oct 2019 00:36
URI: https://eprints.lancs.ac.uk/id/eprint/78402

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