FINE STRUCTURE OF BETA-DELAYED NEUTRON EMISSION AND BETA STRENGTH FUNCTION FOR <sup>77,78,79</sup>Cu

Korgul, A.; Rykaczewski, K. P.; Winger, J. A.; Ilyushkin, S.; Gross, C. J.; Batchelder, J. C.; Bingham, C. R.; Borzov, I. N.; Goodin, C.; Grzywacz, R.; Hamilton, J. H.; Krolas, W.; Liddick, S. N.; Mazzocchi, C.; Nelson, C.; Nowacki, F.; Padgett, S.; Piechaczek, A.; Rajabali, M. M.; Shapira, D.; Sieja, K.; Zganjar, E. F.

doi:10.1142/9789814525435_others23

Cited by 2 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The spectrum in Fig. 4(a) shows γ rays following the implantation of ions identified as 78 Cu [T 1/2 = 330.7(20) ms] within 200 ms. As expected, the spectrum shows the known transitions in 78 Zn and 77 Zn [26]. The spectrum also shows hints of the 156 and 859 keV transitions originating from excited states in 78 Cu.…”

Section: Resultssupporting

confidence: 79%

See 1 more Smart Citation

First spectroscopic study of odd-odd Cu78

Pedersen¹,

Şahin²,

Görgen³

et al. 2023

Phys. Rev. C

View full text Add to dashboard Cite

Nuclei in the vicinity of 78 Ni are important benchmarks for nuclear structure, which can reveal changes in the shell structure far from stability. Spectroscopy of the odd-odd isotope 78 Cu was performed for the first time in an experiment with the EURICA setup at the Radioactive Isotope Beam Factory at RIKEN Nishina Center. Excited states in the neutron-rich isotope were populated following the β decay of 78 Ni produced by in-flight fission and *

show abstract

Section: Resultssupporting

confidence: 79%

“…The ground-state spin of 78 Cu was previously assigned as (4, 5) − [13] based on the feeding of states in the β-decay daughter 78 Zn, and, in later works, as (6 − ) [25] and (5 − ) [26]. A laser spectroscopy experiment showed best agreement with I = 6, suggesting a ground-state spin-parity of (6 − ) [18].…”

Section: Resultsmentioning

confidence: 99%

First spectroscopic study of odd-odd Cu78

Pedersen¹,

Şahin²,

Görgen³

et al. 2023

Phys. Rev. C

View full text Add to dashboard Cite

show abstract

“…For nuclei with Q β < S 2n , γ emission from neutronunbound states is the only competition that can reduce the neutron emission probability. The neutron-γ competition was previously considered by experimentalists and theorists [8][9][10][11][12]. The significance of the relative competition between multi-neutron emission channels in the Q β > S 2n nuclei was quantitatively discussed in the theoretical work by Mumpower et al [13] and a modified * yokoyama@cns.s.u-tokyo.ac.jp global prediction for neutron emission probabilities was provided using the QRPA strength distribution [14].…”

Section: Introductionmentioning

confidence: 99%

β -delayed neutron emissions from N>50 gallium isotopes

Yokoyama,

Grzywacz,

Rasco

et al. 2023

Phys. Rev. C

View full text Add to dashboard Cite

β-delayed γ-neutron spectroscopy has been performed on the decay of A = 84 to 87 gallium isotopes at the RI-beam Factory at the RIKEN Nishina Center using a high-efficiency array of 3 He neutron counters (BRIKEN). β-2n-γ events were measured in the decays of all of the four isotopes for the first time, which is direct evidence for populating the excited states of two-neutron daughter nuclei. Detailed decay schemes with the γ branching ratios were obtained for these isotopes and the neutron emission probabilities (Pxn) were updated from the previous study. Hauser-Feshbach statistical model calculations were performed to understand the experimental branching ratios. We found that the P1n and P2n values are sensitive to the nuclear level densities of 1n daughter nuclei and showed that the statistical model reproduced the P2n/P1n ratio better when experimental levels + shell-model level densities fit by the Gilbert-Cameron formula were used as the level-density input. We also showed the neutron and γ branching ratios are sensitive to the ground-state spin of the parent nucleus. Our statistical model analysis suggested J ≤ 3 for the unknown ground-state spin of the odd-odd nucleus, 86 Ga, from the Iγ(4 + → 2 + )/Iγ(2 + → 0 + ) ratio of 84 Ga and the P2n/P1n ratio. These results show the necessity of detailed understanding of the decay scheme, including data from neutron spectroscopy, in addition to γ measurements of the multi-neutron emitters.

show abstract

FINE STRUCTURE OF BETA-DELAYED NEUTRON EMISSION AND BETA STRENGTH FUNCTION FOR ^77,78,79Cu

Cited by 2 publications

References 0 publications

First spectroscopic study of odd-odd Cu78

First spectroscopic study of odd-odd Cu78

β -delayed neutron emissions from N>50 gallium isotopes

Contact Info

Product

Resources

About

FINE STRUCTURE OF BETA-DELAYED NEUTRON EMISSION AND BETA STRENGTH FUNCTION FOR 77,78,79Cu

Cited by 2 publications

References 0 publications

First spectroscopic study of odd-odd Cu78

First spectroscopic study of odd-odd Cu78

β -delayed neutron emissions from N>50 gallium isotopes

Contact Info

Product

Resources

About

FINE STRUCTURE OF BETA-DELAYED NEUTRON EMISSION AND BETA STRENGTH FUNCTION FOR ^77,78,79Cu