Radiochemical investigation of the mass distribution and probability in stopped μ− induced fission of 238U

Abstract Radiochemical measurements of 24 fission products show that the mass-split is asymmetric in stopped μ − induced fission of 238 U. The mass distribution is similar to 14 MeV neutron-induced fission. The main difference is a smaller peak-to-valley ratio no point indicating a mean excitation energy of about 20 MeV. The fission probability (prompt and delayed) is 0.15 ± 0.03 per stopped muon.