Di. Ivanov et al., FISSION PROBABILITIES OF CU, NB, AG, HO, AU AND BI NUCLEI EXCITED BY STOPPED ANTIPROTONS, ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI, 352(2), 1995, pp. 191-195
The A dependence of nuclear fission induced by stopped antiprotons has
been measured. An unambiguous identification of the binary fission de
cay mode was provided by a coordinate measurement of complementary fis
sion fragments in coincidence using a large-acceptance fission detecto
r based on low pressure multiwire proportional chambers. A deep fissil
ity minimum was observed near A = 100, in agreement with the general b
ehaviour predicted by the liquid-drop model. An unexpectedly low and h
igh fission probability was found for the Ag and Cu nuclei, respective
ly.