Transition strengths and multiple band structure inSr82

High-spin structure of104Pd

“…Compared to the yrast band, band 10 shows an alignment gain of ∼4h, so it is assumed to be configured by two quasiparticles. As more two-quasineutron structures are not expected below bands 3,4,5 [41][42][43][44][45], and assigned to noncollective νg 9/2 ,(p 1/2 ,f 5/2 ) configurations [45]. In Pd isotopes with proton number Z = 46, analogous two-quasiproton excitations can be expected.…”

Experimental and Theoretical Study of Quasi-Particle Alignment in 82Sr

“…The Nilsson parameters κ(N ) and μ(N ) are taken from Ref. [9], and the axial deformation parameter β 2 is 0.33 deduced from experimental Q t value [3]. The rotational g factor, g R is 0.36, which is obtained after taking into account the factor that the pairing force acting between protons is larger than between neutrons [10].…”

“…The level scheme and the lifetimes of the rotational states in 82 Sr have been investigated by a number of groups [2][3][4]. So far, the pairing breaking and alignment of quasi-particles have not been studied directly by the g factor measurement.…”

Shape change induced by g 9/2 rotational alignment in 84,86Mo

“…For example, 84 Zr, 84,86 Mo are well deformed [1,2] and 88 Mo is best described as a combination of collective and single-particle excitations [3], whereas N > 46 nuclei 90,92 Mo are described by spherical shell model [4]. For more collective Z, N 44 nuclei, the evolution in collectivity, strong shape-driving effect from g 9/2 orbit and residual proton-neutron interaction act together, resulting in various interesting phenomena in this mass region, such as superdeformation in 84 Zr [1], γ-vibrations in 80,82 Sr [5,6] and delayed alignment in 84 Mo and 80 Zr [7,8]. Experimentally, with the development of γ-ray detectors, the measurement of high spin states in 84,86 Mo [7,9,10] makes it possible to test detailed theoretical calculations concerning their deformations.…”