TY - JOUR A1 - Wolf, Kevin L. A1 - Gutbrod, Hans Herbert A1 - Meyer, W. G. A1 - Poskanzer, Arthur M. A1 - Sandoval, Andres A1 - Stock, Reinhard A1 - Gosset, Jean A1 - Jourdain, Jean Claude A1 - King, Chuck A1 - King, George A1 - Sen, Nguyen Van A1 - Westfall, Gary D. T1 - Pion production and charged-particle multiplicity selection in relativistic nuclear collisions T2 - Physical review. C N2 - Spectra of positive pions with energies of 15-95 MeV were measured for high energy proton, 4He, 20Ne, and 40Ar bombardments of targets of 27Al, 40Ca, 107,109Ag, 197Au, and 238U. A Si-Ge telescope was used to identify charged pions by dE / dx-E and, in addition, stopped pi + were tagged by the subsequent muon decay. In all, results for 14 target-projectile combinations are presented to study the dependence of pion emission patterns on the bombarding energy (from E / A=0.25 to 2.1 GeV) and on the target and the projectile masses. In addition, associated charged-particle multiplicities were measured in an 80-paddle array of plastic scintillators, and used to make impact parameter selections on the pion-inclusive data. NUCLEAR REACTIONS U(20Ne, pi +), E / A=250 MeV; U(40Ar, pi +), Ca(40Ar, pi +), U(20Ne, pi +), Au(20Ne, pi +), Ag(20Ne, pi +), Al(20Ne, pi +), U(4He, pi +), Al(4He, pi +). E / A=400 MeV; Ca(40Ar, pi +), U(20Ne, pi +), U(4He, pi +), U(p, pi +), E / A=1.05), GeV; U(20Ne, pi +), E / A=2.1 GeV; measured sigma (E, theta ), inclusive and selected on associated charged-particle multiplicity. Y1 - 2005 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/3939 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30-15498 VL - 26 IS - 6 SP - 2572 EP - 2594 ER -