Étude des isotones N = 81 : 139Ce, 141Nd, 143Sm, au moyen des réactions (d, t ) et (3He, α)

Berrier, G.; Vergnes, M.; Rotbard, G.; Kalifa, J.

doi:10.1051/jphys:01976003704031100

Cited by 37 publications

(4 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A comparison of the two differently-matched reactions has proved valuable in other work in differentiating between high-assignments (some examples can be found in References [7,9,26]); it was found to be less useful here in that respect, but did help to discriminate between highand low-transitions. The values deduced from the current work for the three heaviest targets are generally consistent with the work on (d,t) and ( 3 He,α) reactions by Berrier et al [14]. There is very good agreement for 141 Nd.…”

Section: Methodssupporting

confidence: 90%

“…Assignments in 143 Sm also agree well with Ref. [14]. However, at a beam energy of 23 MeV, elasticallyscattered protons have a lower kinetic energy and magnetic rigidity than deuterons arising from the population of the ground-state groups in the (p,d) reaction.…”

Section: Methodssupporting

confidence: 86%

“…For the later discussion, unobserved = 5 transitions would be a more critical issue; Ref. [14] observes no further = 5 population, whereas Ref. [15] isolates two higher-lying = 5 transitions.…”

Section: Methodsmentioning

confidence: 99%

“…High-resolution measurements of the ( 3 He,α) reaction were studied on 140 Ce, 142 Nd and 144 Sm targets in Ref. [14], which also reports measurements of the (d,t) reaction. However, the helium-induced reaction on a 138 Ba target has not been studied before.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Neutron-hole strength in N=81 nuclei

et al. 2020

View full text Add to dashboard Cite

A systematic study of neutron-hole strength in the N = 81 nuclei 137 Ba, 139 Ce, 141 Nd and 143 Sm is reported. The single-neutron removal reactions (p,d) and ( 3 He,α) were measured at energies of 23 and 34 MeV, respectively. Spectroscopic factors were extracted from measured cross sections through a distorted-wave Born approximation analysis and centroids of single-particle strength have been established. The change in these centroid energies as a function of proton number have been compared to calculations of the monopole shift for the s 1/2 and h 11/2 orbitals, where the majority of the strength has been observed. Significant fragmentation of strength was observed for the d and g 7/2 orbitals, particularly for the latter orbital which is deeply bound, with summed strengths that indicate a significant amount lies outside of the measured excitation energy range. *

show abstract

Section: Methodssupporting

confidence: 90%

Section: Methodssupporting

confidence: 86%