Spin assignments in 63Ni through

Huttlin, G. A.; Sen, S.; Yoh, W.A.; Rollefson, A.A.

doi:10.1016/0375-9474(74)90766-0

Cited by 20 publications

(23 citation statements)

References 15 publications

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“…5 transitions connecting these highly excited states with those at lower excitation energy are not observed. This nonobservation might be from the higher level density at high excitation energy and the large variety of possible decay paths; (d,p) experiments on lighter nickel isotopes at comparable CM energies have shown that at high excitation energy a large number of states are populated with somewhat small cross sections, supporting this statement [53][54][55][56][57][58][59][60]. The reconstructed curve in Fig.…”

Section: B 67 Ni Level Schemementioning

confidence: 79%

“…In 62,64 Ni(d,p) 63,65 Ni experiments the largest relative spectroscopic factor observed for a 1/2 + state is 0.4, and in general the νs 1/2 single-particle strength is mostly fragmented [57][58][59].…”

Section: A Distribution Of the Single-particle Strengthmentioning

confidence: 98%

“…From a comparison with both lighter nickel isotopes [53][54][55][56][57][58][59][60] and odd-Z, even-N nuclei near the semimirror nucleus 90 40 Zr 50 , where protons occupy the same orbitals as the neutrons do around 68 Ni, it is expected that nearly the full pf strength is exhausted in the observed states at low excitation energy [76][77][78]. In 62 Ni(d,p) 63 Ni and 64 Ni(d,p) 65 Ni reactions [57][58][59] values above 3 MeV are all identified as 0 or 2 and limited contributions of 4. At these excitation energies, the integrated calculated cross sections within the detectable range for s 1/2 ( = 0) and d 5/2 ( = 2) are nearly identical and hence also their relative spectroscopic factors are similar.…”

Section: -10mentioning

confidence: 99%

“…Such twofold splitting is also observed in (d,p) reactions on 58,60,62,64 Ni from Refs. [53][54][55][56][57][58][59][60], with a total strength of 31%, 27%, 23%, and 34%, respectively. In those experiments a larger number of 5/2 + states was observed, but in all cases a considerable part of the νd 5/2 single-particle strength is concentrated in two low-lying 5/2 + states.…”

Section: A Distribution Of the Single-particle Strengthmentioning

confidence: 99%

“…[53][54][55][56][57][58][59][60] were combined with the present set. The more recent data on the stable nickel isotopes [79,80] only include the strength of the νg 9/2 configuration and the negative parity states.…”

Section: A Distribution Of the Single-particle Strengthmentioning

confidence: 99%

See 4 more Smart Citations

Experimental study of theNi66(d,p) Ni67
Diriken¹,
Raabe²,
Eberth³
et al. 2015
Phys. Rev. C
9
1
5
0
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The quasi-SU(3) sequence of the positive parity νg 9/2 ,d 5/2 ,s 1/2 orbitals above the N = 40 shell gap are assumed to induce strong quadrupole collectivity in the neutron-rich Fe (Z = 26) and Cr (Z = 24) isotopes below the nickel region. In this paper the position and strength of these single-particle orbitals are characterized in the neighborhood of 68 Ni (Z = 28, N = 40) through the 66 Ni(d,p) 67 Ni one-neutron transfer reaction at 2.95 MeV/nucleon in inverse kinematics, performed at the REX-ISOLDE facility in CERN. A combination of the Miniball γ -array and T-REX particle-detection setup was used and a delayed coincidence technique was employed to investigate the 13.3-μs isomer at 1007 keV in 67 Ni. Excited states up to an excitation energy of 5.8 MeV have been populated. Feeding of the νg 9/2 (1007 keV) and νd 5/2 (2207 keV and 3277 keV) positive-parity neutron states and negative parity (νpf ) states have been observed at low excitation energy. The extracted relative spectroscopic factors, based on a distorted-wave Born approximation analysis, show that the νd 5/2 single-particle strength is mostly split over these two excited states. The results are also compared to the distribution of the proton single-particle strength in the 90 Zr region (Z = 40,N = 50).

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