Triaxiality in the mid-shell nucleus Pd112

Lifetime measurements to investigate γ softness and shape coexistence in Mo102

“…Due to the low statistics, for the 4 + γ state the method explained in Refs. [40,46] was used to obtain the lifetime. The summed spectra of all distances j was used in combination with the following solution of the Bateman equations [40,46]:…”

“…As discussed in Refs. [39,40] a top-to-bottom approach was used to determine the lifetimes to adjust the feeding pattern for lower-lying states. The uncertainties for the single measurements were determined using a Monte Carlo simulation were all parameters were varied within their uncertainties.…”

“…The six forward detectors were positioned at an angle of 45 • , whereas the five backward detectors were placed at an angle of 142 • with respect to the beam direction. Similar to previous experiments using the same configuration [39][40][41], six solar cells were installed at backward angles to detect the backscattered light recoiling fragments. To apply the recoil distance Doppler-shift (RDDS) technique, twelve target-tostopper distances (15,29,44,64,84,114,214,414,714,1114,1814, and 2414 μm) were measured in approximately 12 days of beam time.…”

“…2(a). An assumption for the maximum feeding from this state and possible other but unobserved states can be extrapolated from the feeding of the lower-lying states and by the fact that the population of states in transfer reactions is decreasing with increasing spin and excitation energy [39][40][41]. A realistic amount of feeding contribution would in this case be 20%.…”

“…In other words, 80% is directly populated through the reaction. For the sake of simplicity, the feeding is modeled by a single hypothetical state with an effective lifetime of 100 ps which is sufficiently long to be considered as a pure long-lived feeding [40,41]. After including the feeding intensity and lifetime in the simulation, a lifetime of τ 4 + γ = 1(1) ps was calculated.…”