Decay studies of neutron-rich products from 76Ge induced multinucleon transfer reactions including the new isotopes 62Mn, 63Fe and 71, 72, 73Cu

Runte, E.; Schmidt‐Ott, W. D.; Tidemand-Petersson, P.; Kirchner, R.; Klepper, O.; Kurcewicz, W.; Roeckl, E.; Kaffrell, Ν.; Peuser, P.; Rykaczewski, K. P.; Bernas, M.; Dessagne, Ph.; Langevin, M.

doi:10.1016/0375-9474(83)90600-0

Cited by 79 publications

(31 citation statements)

References 17 publications

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“…They were fitted to an exponential function yielding a 73 Zn half-life of 24.5 ± 0.2 s, which is in agreement with the literature value of 23.5 ± 1.0 s reported by Runte et al [21]. The value and the uncertainty were obtained from the weighted average of the individual results for the most intense γ rays in the decay.…”

Section: A Identification Of γ Rays and The β-Decay Half-life Of 73 Znsupporting

confidence: 67%

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Search for the Ga73 ground-state doublet splitting in the β decay of Zn73

Vedia¹,

Paziy²,

Fraile³

et al. 2017

Phys. Rev. C

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The existence of two close-lying nuclear states in 73 Ga has recently been experimentally determined: a 1/2 − spin-parity for the ground state was measured in a laser spectroscopy experiment, while a J π = 3/2 − level was observed in transfer reactions. This scenario is supported by Coulomb excitation studies, which set a limit for the energy splitting of 0.8 keV. In this work, we report on the study of the excited structure of 73 Ga populated in the β decay of 73 Zn produced at ISOLDE, CERN. Using β-gated, γ -ray singles, and γ -γ coincidences, we have searched for energy differences to try to delimit the ground-state energy splitting, providing a more stringent energy difference limit. Three new half-lives of excited states in 73 Ga have been measured using the fast-timing method with LaBr 3 (Ce) detectors. From our study, we help clarify the excited structure of 73 Ga and we extend the existing 73 Zn decay to 73 Ga with 8 new energy levels and 35 γ transitions. We observe a 195-keV transition consistent with a γ ray de-exciting a short-lived state in the β-decay parent 73 Zn.

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Section: A Identification Of γ Rays and The β-Decay Half-life Of 73 Znsupporting

confidence: 67%

“…In addition, a 199-keV transition with a half-life of 3.9 s reported in Ref. [21], and consistent with the 73 Cu β-decay half-life, could not be confirmed in Ref. [20].…”

Section: Introductionmentioning

confidence: 70%

Search for the Ga73 ground-state doublet splitting in the β decay of Zn73

Vedia¹,

Paziy²,

Fraile³

et al. 2017

Phys. Rev. C

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“…The radioactive 71,73 Ga ion beams were produced at the REX-ISOLDE facility in CERN by irradiating a 45-g/cm 2 UC x target with a 1.4-GeV pulsed proton beam with an intensity of 3 × 10 13 protons/pulse (18 pulses/min). The primary target matrix was kept at a temperature of approximately 2000…”

Section: Methodsmentioning

confidence: 99%

“…The structure of the neutron-rich odd-A gallium isotopes (Z = 31) has been studied in the past by means of β decay [1][2][3], single-and multiparticle transfer reactions [4][5][6][7][8][9], and more recently by deep inelastic reactions [10]. The twoneutron-transfer reaction data suggest a change in structure between 71 Ga 40 and 73 Ga 42 , which is most probably related to the structural difference observed between 72 Ge 40 and 74 Ge 42 (Z = 32), where both the 72 Ge 40 (t,p) 74 Ge 42 and 74 Ge 42 (p,t) 72 Ge 40 reactions strongly populate the excited 0 + state, indicating a shape transition [11].…”

Section: Introductionmentioning

confidence: 99%

Coulomb excitation ofGa73

Diriken¹,

Stefanescu²,

Balabanski³

et al. 2010

Phys. Rev. C

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The B(E2; I i → I f ) values for transitions in 71 31 Ga 40 and 73 31 Ga 42 were deduced from a Coulomb excitation experiment at the safe energy of 2.95 MeV/nucleon using post-accelerated beams of 71,73 Ga at the REX-ISOLDE on-line isotope mass separator facility. The emitted γ rays were detected by the MINIBALL γ -detector array, and B(E2; I i → I f ) values were obtained from the yields normalized to the known strength of the 2 + → 0 + transition in the 120 Sn target. The comparison of these new results with the data of less neutron-rich gallium isotopes shows a shift of the E2 collectivity toward lower excitation energy when adding neutrons beyond N = 40. This supports conclusions from previous studies of the gallium isotopes, which indicated a structural change in this isotopic chain between N = 40 and 42. Combined with recent measurements from collinear laser spectroscopy showing a 1/2 − spin and parity for the ground state, the extracted results revealed evidence for a 1/2 − , 3/2 − doublet near the ground state in 73 31 Ga 42 differing by at most 0.8 keV in energy.

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“…In a traditional shell model view, a singleparticle coupling suggests J π = 3/2 − for the ground-state spin and parity in odd-A copper owing to the 29 th proton being in the π2p 3/2 single particle orbital. Earlier works [4,5] confirmed this prediction by observing β-feeding to the J π = 1/2 − and 5/2 − states in the zinc daughter nuclei for the odd-A copper isotopes up to 73 Cu. However, energy level systematics for 69−73 Cu ( Fig.…”

mentioning

confidence: 71%

β-decay studies of the transitional nucleusCu75and the structure of
Ilyushkin
¹
,
Winger
²
,
Rykaczewski
³

et al. 2011
Phys. Rev. C
16
0
7
0
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Decay studies of neutron-rich products from 76Ge induced multinucleon transfer reactions including the new isotopes 62Mn, 63Fe and 71, 72, 73Cu

Cited by 79 publications

References 17 publications

Search for the Ga73 ground-state doublet splitting in the β decay of Zn73

Search for the Ga73 ground-state doublet splitting in the β decay of Zn73

Coulomb excitation ofGa73

β-decay studies of the transitional nucleusCu75and the structure of
Ilyushkin
¹
,
Winger
²
,
Rykaczewski
³

et al. 2011
Phys. Rev. C
16
0
7
0
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Decay studies of neutron-rich products from 76Ge induced multinucleon transfer reactions including the new isotopes 62Mn, 63Fe and 71, 72, 73Cu

Cited by 79 publications

References 17 publications

Search for the Ga73 ground-state doublet splitting in the β decay of Zn73

Search for the Ga73 ground-state doublet splitting in the β decay of Zn73

Coulomb excitation ofGa73

β-decay studies of the transitional nucleusCu75and the structure ofIlyushkin1, Winger2, Rykaczewski3 et al. 2011Phys. Rev. C16070View full textAdd to dashboardCite

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β-decay studies of the transitional nucleusCu75and the structure of
Ilyushkin
¹
,
Winger
²
,
Rykaczewski
³

et al. 2011
Phys. Rev. C
16
0
7
0
View full text Add to dashboard Cite