CERN experiment NA44 measures pion and kaon distributions at pT=0-320 MeV/c at midrapidity in p+A and A+A collisions at 450 and 200A GeV/c, respectively. Pion production from p+Pb and A+A is slightly enhanced at low pT relative to p+Be, but less than observed at target rapidity. The low pT behavior can be understood in the context of the RQMD model as arising from baryonic resonance decays.
All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)