E. Ditzel et al., ABSENCE OF EO TRANSITIONS AROUND 1.8 MEV AFTER COLLISIONS OF U-238 WITH TA-181, ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI, 358(1), 1997, pp. 11-14
E0 transitions have been searched for in U+Ta collisions around the Co
ulomb barrier with a novel arrangement correcting for Doppler effects.
At transition energies around 1.8 MeV no E0 decays have been observed
which results in upper cross-section limits of 0.1 mb in U-238 and 0.
3 mb in Ta-181 (95% confidence level).