Charvet, J.L.
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Measurements of neutrons in 11.5-A-GeV/c Au + Pb heavy-ion collisions.

The E864 collaboration Armstrong, T.A. ; Barish, K.N. ; Batsouli, S. ; et al.
Phys.Rev.C 60 (1999) 064903, 1999.
Inspire Record 506495 DOI 10.17182/hepdata.31358

We present measurements from Brookhaven Experiment 864 of neutron invariant multiplicity in 11.5 A GeV/c Au+Pb collisions. The measurements span a rapidity range from center-of-mass to beam rapidity (y(beam)=3.2) and are presented as a function of event centrality. The results are compared with E864 measurements of proton invariant multiplicity and an average n/p ratio at hadronic freeze-out of 1.19+-.08 is determined for the rapidity range y=1.6 to y=2.4. We discuss briefly the implications of this ratio within a simple equilibrium model of the collision system.

1 data table
Table 1

The errors are statistical and systematic errors added in quadrature. 10% most central events.


Saturation of the thermal energy deposited in Au and Th nuclei by Ar projectiles between 27 and 77 MeV/u

Jiang, D.X. ; Doubre, H. ; Galin, J. ; et al.
Nucl.Phys.A 503 (1989) 560-574, 1989.
Inspire Record 25834 DOI 10.17182/hepdata.36893

Multiplicities of neutrons and light charged particles associated with central collisions have been measured in the energy range 27–77 MeV/u for the systems 40 Ar+ 197 Au, 232 Th. The experiments demonstrate the occurrence of a saturation of the thermal energy deposited in the system around 650 MeV, corresponding to a constant internal temperature close to 5 MeV.

6 data tables
Table 1

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Table 2

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Table 3

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