Nuclear Dependence of Dimuon Production at 800-GeV - INSPIRE

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Nuclear Dependence of Dimuon Production at 800-GeV

1990

4 pages

Published in:

Phys.Rev.Lett. 64 (1990) 2479-2482

DOI:

10.1103/PhysRevLett.64.2479

Report number:

FERMILAB-PUB-90-386

Experiments:

FNAL-E-0772

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Abstract: (APS)

A precise measurement of the atomic-mass dependence of dimuon production induced by 800-GeV protons is reported. Over 450 000 muon pairs with dimuon mass M≥4 GeV were recorded from targets of H2, C, Ca, Fe, and W. The ratio of dimuon yield per nucleon for nuclei versus H2, R=YA/Y2H, is sensitive to modifications of the antiquark sea in nuclei. No nuclear dependence of this ratio is observed over the range of target-quark momentum fraction 0.1

Note:

FNAL-E-0772

p deuteron: inclusive reaction
p light nucleus: inclusive reaction
p light nucleus: nuclear reaction
carbon
calcium
p nucleus: inclusive reaction
p nucleus: nuclear reaction
iron
tungsten
muon: pair production

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