Recent results from hadronic observables at the CERN SPS

Conference · Tue Oct 01 04:00:00 EDT 1996

OSTI ID:454019

Jacobs, P M

Some recent results on Pb+Pb collisions from NA44 and NA49 at the CERN SPS are reviewed and compared to collisions of lighter systems and lower energies. For central collisions: primordial protons show enhanced stopping for Pb+Pb relative to S+S at the same energy, but less stopping than heavy systems at lower energy; yields of negative hadrons, kaons and lambdas scale with the number of participants relative to S+S; and transverse momentum spectra show strong evidence for enhanced radial flow in the heaviest system. For intermediate impact parameters, significant quadrupole deformation of the transverse energy distribution is seen at mid-rapidity. Coulomb effects are seen for central collisions in the ratio of yields {pi}{sup -}/{pi}{sup +} and unlike-sign two particle correlations.

• Research Organization: Lawrence Berkeley National Lab., CA (United States)
• Sponsoring Organization: USDOE Office of Energy Research, Washington, DC (United States)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 454019
• Report Number(s): LBNL--39457; CONF-9608172--1; ON: DE97001501
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ANTIPROTONS
CERN SPS SYNCHROTRON
ENERGY DEPENDENCE
HEAVY ION REACTIONS
ION-ION COLLISIONS
KAONS MINUS
KAONS NEUTRAL
KAONS PLUS
LEAD 206 REACTIONS
LEAD 206 TARGET
LEAD 208 REACTIONS
LEAD 208 TARGET
PARTICLE RAPIDITY
PIONS MINUS
STOPPING POWER
SULFUR 32 REACTIONS
SULFUR 32 TARGET
TIME-OF-FLIGHT METHOD