Aa. Baldin et al., MASS DEPENDENCE OF ANTIPROTON PRODUCTION IN NUCLEUS-NUCLEUS COLLISIONS AT 3.65 GEV NUCLEON/, Nuovo cimento della Società Italiana di Fisica. A. Nuclei, particles and fields, 108(2), 1995, pp. 139-146
Antiproton production cross-sections have been measured for p + C, C C, C + Cu and C + Pb collisions at 3.65 GeV/nucleon.pBAR laboratory m
omentum and angle are 0.8 GeV/c and 24-degrees. The target mass depend
ence parameter is found to be 0.43 +/- 0.1. A strong increase in antip
roton yield is observed from p + C, d + C to C + C collisions. Project
ile mass parameter is 1.2 +/- 0.2 for d + C to C + C. The construction
and calibration of APAKI, an annihilation detector for pBAR identific
ation, are also described.