Popis: |
The energy spectra of charged particles (mainly protons) emitted following muon capture have been measured for targets of Al, Cu, and Pb. The intensity of the energetic (40 --70 MeV) emitted particles falls exponentially with increasing energy, I=I/sub 0/exp(-E/E/sub 0/), with exponential constant E/sub 0/ 7.5 +- 0.4 MeV (Al), 8.3 +- 0.5 MeV (Cu), 9.9 +- 1.1 MeV (Pb). The integrated yield for particles above 40 MeV was found to be (1.38 +- 0.09) x 10/sup -3/ per capture for Al, (1.96 +- 0.12) x 10/sup -3/ per capture for Cu, and (0.171 +- 0.028) x 10/sup -3/ per capture for Pb. |