Energy flow and stopping in relativistic heavy ion collisions at e(lab)/a = 14.6-GeV

Collisions of Si28+Al, Cu, Pb at Elab/A=14.6 GeV were studied in a calorimetry-based experiment at the BNL Alternating Gradient Synchrotron. Transverse-energy production was measured for pseudorapidities -0.5<η<0.8. Correlations with the spectra and multiplicity of neutrons and protons emitted into a forward 0.8° cone demonstrate quantitatively the large amount of nuclear stopping observed in these reactions. Calculations in hadronic-fireball or nucleon-nucleon based models underpredict the measured transverse-energy production for Si+Pb and indicate the need to include rescattering of secondaries and /or contributions from target fragmentation.

nucleus nucleus: nuclear reaction
scattering: heavy ion
heavy ion: scattering
silicon
aluminum
copper
lead
energy flow
rapidity spectrum
transverse energy: spectrum

References(9)

Figures(0)

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