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A measurement of the difference between the single-nucleon cross sections for J/ψmuoproduction in iron and in H2, D2 targets

Abstract:

The cross sections for J ψ production have been measured in interactions of 280 GeV μ+ on hydrogen and deuterium (H, D) and also in interactions of 250 GeV μ+ on iron. The single-nucleon cross sections in iron are found to be larger than those in H, D. The mean ratio of the iron to H, D photoproduction cross sections in the range 60 < v < 200 GeV is 1.45 ±0.12 (statistical) ±0.22 (systematic error). Within the framework of the photon-gluon fusion model, this indicates that the gluon den...

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Journal:
Physics Letters B More from this journal
Volume:
152
Issue:
5-6
Pages:
433-438
Publication date:
1985-03-14
DOI:
ISSN:
0370-2693
Language:
English
Pubs id:
pubs:90429
UUID:
uuid:061047a5-f1f9-44ec-8491-f2a7cbf61219
Local pid:
pubs:90429
Source identifiers:
90429
Deposit date:
2012-12-19

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