Measurements of neutrons in 11.5-A-GeV/c Au + Pb heavy ion collisions
Sep, 1999Citations per year
Abstract: (arXiv)
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.- scattering: heavy ion
- gold
- lead
- hadron: multiple production
- n: multiplicity
- mass spectrum
- impact parameter: dependence
- rapidity dependence
- transverse momentum: spectrum
- yield: (helium tritium n p)
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