Abstract
In the very heavy collision system Au the production process was studied as a function of impact parameter at 1 GeV/nucleon, a beam energy well below the free N-N threshold. The multiplicity increases more than linearly with the number of participant nucleons and the / ratio rises significantly when going from peripheral to central collisions. The measured double differential cross section is enhanced by a factor of 6 compared to microscopic transport calculations if secondary processes (ΔN→KΛN and ΔΔ→KΛN) are ignored.
- Received 4 February 1994
DOI:https://doi.org/10.1103/PhysRevLett.72.3650
©1994 American Physical Society