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Beta decay of the MT=-1 nucleus 58Zn studied by selective laser ionization (1998)

Jokinen, A. ; Oinonen, M. ; Äystö, J. ; [weitere]

Springer

The European physical journal 3 (1998), S. 271-276

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ISSN: 1434-601X

Schlagwort(e): PACS: 27.40.+z 39≤ A≤ 58 – 29.25.Rm Radioactive ion sources – 32.80.Rm Multiphoton ionization – 21.10.Hw Spin, parity and isobaric spin – 21.60.Cs Shell model

Quelle: Springer Online Journal Archives 1860-2000

Thema: Physik

Notizen: Abstract: Beta decay of 58Zn has been studied for the first time. A new laser ion-source concept has been used to produce mass-separated sources for beta and gamma spectroscopy. The half-life of 58Zn was determined to be 86(18) ms. Comparisons are made with previous data from charge-exchange reactions. Our Gamow–Teller strength to the 1+ state at 1051 keV excitation in 58Cu agrees well with the value extracted from a recent (3He, t) study. Extensive shell-model calculations are presented.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/s100500050177

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Digitale Medien

Alpha decay of the new isotopes207, 208Ac (1994)

Leino, M. ; Uusitalo, J. ; Enqvist, T. ; [weitere]

Springer

The European physical journal 348 (1994), S. 151-152

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ISSN: 1434-601X

Schlagwort(e): 23.60.+e −25.70.-z −27.80.+w

Quelle: Springer Online Journal Archives 1860-2000

Thema: Physik

Notizen: Abstract Two new neutron-deficient isotopes207,208Ac have been produced in fusion reactions with 5.2–5.6 MeV/nucleon40Ar ions on175Lu and identified on the basis of genetic correlations. The fusion evaporation products were separated on-line using a gas-filled magnetic recoil separator. The alpha energy and half-life of208Ac were determined to be (7572±15) keV and (95 −16 +24 ) ms, respectively. A new alpha line with a half-life of (25 −5 +9 ) ms and an energy of (7758±20) keV is assigned to the decay of an isomeric state in208Ac. Another new activity with a half-life of (22 −9 +40 ) ms and an alpha energy of (7712±25) keV is assigned to207Ac.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF01289604

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The decay of the neutron–rich nucleus 216Bi (2000)

Kurpeta, J. ; Andreyev, A. ; Äystö, J. ; [weitere]

Springer

The European physical journal 7 (2000), S. 49-54

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ISSN: 1434-601X

Schlagwort(e): PACS: 23.20.Lv Gamma transitions and level energies – 27.80.+w 190 ≤ A ≤ 219 – 29.30.Kv X- and γ-ray spectroscopy

Quelle: Springer Online Journal Archives 1860-2000

Thema: Physik

Notizen: Abstract: The decay of the neutron–rich isotope 216Bi, produced by proton–induced spallation at the PS Booster–ISOLDE facility, was investigated by β-γγ, αγ coincidence and spectrum-multiscaling measurements. A new method for reducing isobaric contamination enabled to cover the unknown region “east” of 208Pb for the isobaric chain A=216. The half-life of the β decay of 216Bi was found as T1/2= 135 ± 5 s. Its decay scheme was extended and the possible shell model configurations are proposed.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/s100500050010

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