The
E288
collaboration
Herb, S.W.
;
Hom, D.C.
;
Lederman, L.M.
;
et al.
Phys.Rev.Lett. 39 (1977) 252-255, 1977.
https://inspirehep.net/literature/120368
Inspire Record
120368
DOI
10.17182/hepdata.42613
https://doi.org/10.17182/hepdata.42613
Dimuon production is studied in 400-GeV proton-nucleus collisions. A strong enhancement is observed at 9.5 GeV mass in a sample of 9000 dimuon events with a mass $m_{\mu^+\mu^-} \to$ 5 GeV.
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