Experimental study of low-lying levels and decay structure in the nucleus 62Cu

Davidson, W.F.; Najam, M.R.; Dallimore, P.J.; Hellström, John; Powell, D.L.

doi:10.1016/0375-9474(70)90125-9

Cited by 15 publications

(4 citation statements)

References 21 publications

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“…This program has consisted of singles and coincidence y-ray measurements , using Ge(Li) detectors, to determine level positions and their decay schemes, and also angular distribution measurements to determine the corresponding level angular momenta and y-transition multipole mixing ratios. These measurements have been reported by Davidson et al (1970aDavidson et al ( , 1970b and Najam et al (1971.…”

Section: Introductionsupporting

confidence: 82%

Lifetimes of States in 62,64Cu and 67,70Ga

Carlson¹,

Najam²,

Davidson³

et al. 1974

Aust. J. Phys.

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The Doppler shift attenuation method of lifetime determination has been employed following the 62.64Ni(p, ny)62.64 Cu and 67. 70Zn(p, ny)67. 70Ga reactions. The lifetime of the 62CU state at 637 keY was found to be 220 :':1~g fs; lower limits of 230 and 250 fs were set for the levels at 426 and 548 keY respectively. For 6 4 CU, a lower limit of 175 fs was set for both the 609 and 663 keY states. Lifetimes

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Section: Introductionsupporting

confidence: 82%

Lifetimes of States in 62,64Cu and 67,70Ga

Carlson¹,

Najam²,

Davidson³

et al. 1974

Aust. J. Phys.

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“…The missing E2 ground state transition then should be taken as a hint on the difference in structure of the two lowest states of 62Cu. A similar behaviour is seen in the decay of many of the higher levels; even the 1 + state at 637 keV decays preferentially to the 40.84 keV state [9].…”

Section: The Y-decay Of the Isomeric Statessupporting

confidence: 66%

“…1 the level scheme of 62Cu from Refs. [9,10] is shown with the transitions observed by us. The energies are taken from our measurements except for the first excited state because its decay energy was below our threshold of detection.…”

Section: The V-transitionsmentioning

confidence: 76%

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Lifetimes and magnetic moments of two states in62Cu

et al. 1973

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The lifetimes and the magnetic moments of the two excited 62Cu states at 40.84 and 390.19 keV are investigated by time differential perturbed angular distribution measurements of the delayed y-rays following the nuclear reactions 61Ni(d, n) and 62Ni (p, n). The results are: r=6.7_ 0.5 nsec,/t= 1.32_ 0.03 n. m. for the 2 + state at 40.84 keV, and T= 16.0_ 0.3 nsec,/t=2.00+ 0.01 n. m. for the 3 + state at 390.19 keV.

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Shell-model calculations on Ni and Cu isotopes

1977

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Binding energies, excitation energies and spectroscopic factors have been calculated for 57-67Ni and 58-68Cu in an unrestricted (2p3/2, lJ;~2,2p1,2 ) shell-model space. The effective two-body matrix elements are obtained from the modified surface delta interaction (MSDI) and from a least-squares fit to experimental binding and excitation energies (ASDI). The average deviation between about 100 experimental and calculated energies is 0.14 MeV for MSDI and 0.08 MeV for ASDI. Excitation energies of high-spin states are given also. Spectroscopic factors have been calculated for all single-nucleon transfer reactions on stable Ni or Cu targets leading to Ni or Cu isotopes. For spectroscopic factors larger than 0.4 the average deviation between theory and experiment is about 30 %. The experimentally observed and calculated spectroscopic strengths are compared by using sum rules and are found to be consistent. An extensive compilation has been made of experimental data on energies, J~ assignments and spectroscopic factors.

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Experimental study of low-lying levels and decay structure in the nucleus 62Cu

Cited by 15 publications

References 21 publications

Lifetimes of States in 62,64Cu and 67,70Ga

Lifetimes of States in 62,64Cu and 67,70Ga

Lifetimes and magnetic moments of two states in62Cu

Shell-model calculations on Ni and Cu isotopes

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