Dimuon production below mass 3.1-GeV/c**2 in p W and S W interactions at 200-A/GeV/c

The HELIOS collaboration Masera, M. ;
Nucl.Phys.A 590 (1995) 93C-102C, 1995.
Inspire Record 407648 DOI 10.17182/hepdata.36493

The focus of this experiment is on dimuons at low M T but the mass range up to the J ψ is also covered. Dimuons are measured over a wide rapidity interval, ranging from nearly central to very forward rapidities. Experimental results concerning the vector meson production in p-W and S-W interactions at 200 GeV/c/A as a function of the charged multiplicity are presented together with a comparison of the observed invariant mass spectra with the dimuon conventional sources in the mass region between the φ and J ψ mesons. The observed large difference in the shape and absolute value of p-W and S-W dimuon spectra cannot be explained in terms of a direct extrapolation of the p-p results.

2 data tables

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