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Dimuon production in collisions of proton, oxygen and sulfur ions on heavy targets at 200 GeV/nucleon; $J/\psi$ production, $\pi$ and $K$ distributions

The NA38 collaboration Grossiord, J.Y. ; Abreu, M.C. ; Alimi, M. ; et al.
Nucl.Phys.A 498 (1989) 249-260, 1989.
Inspire Record 1392869 DOI 10.17182/hepdata.36947

The dimuon production in 200 GeV/nucleon O-U, O-Cu, S-U and p-U reactions is studied in function of transverse energy E T produced by the collision. The J / ψ production relative to continuum events is suppressed for heavy ion induced reactions when E T increases. This suppression is enhanced at low transverse momentum. The π and K meson distributions extracted from the data, have, for each reaction, a similar average transverse momentum which increases only slightly with the transverse energy.

3 data tables
Table 1

No description provided.

Table 2

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Table 3

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Observation of Puzzling A-dependence of Symmetric Hadron Pairs at High $p_T$

Abramov, V.V. ; Baldin, B.Yu. ; Buzulutskov, A.F. ; et al.
Z.Phys.C 27 (1985) 491, 1985.
Inspire Record 203789 DOI 10.17182/hepdata.16051

Symmetric hadron pair production cross section (π+ π+, π+K+, π+p,K+p, andpp) were measured in the range 0.48≦P⊥≦2.29 GeV/c from Be, Cu, and Pb targets bombarded by 70 GeV protons. TheA-dependence exponent as a function ofP⊥ differs for varios pairs.A steep drop of α for meson pairs atP⊥>1.5 GeV/c is observed.

7 data tables
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