The? + decay of the new isotope86Mo and the first observation of86m Nb

Shizuma, T.; Kidera, M.; Ideguchi, E.; Odahara, A.; Tomura, H.; Suematsu, S.; Kuroyanagi, T.; Gono, Y.; Mitarai, S.; Mukai, J.; Komatsubara, T.; Furuno, K.; Heiguchi, K.

doi:10.1007/bf01291648

Cited by 13 publications

(10 citation statements)

References 7 publications

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“…The half-life of 86 Mo has been determined from the time behaviour of γ-, Nb K X-ray and electron peaks. The weighted average value is 19.1 ± 0.3 s confirming the half-life of 19.6 ± 1.1 s obtained in [23]. No indication of the existence of an isomer in 86 Nb with a half-life of 56 s [23] has been observed.…”

Section: Mass A=86supporting

confidence: 74%

“…fed by the beta decay of 86 Mo [23]. The cascade nature is supported by strong coincidences between the electrons from one of the 47.7 keV and 50.1 keV transitions and the γ-line of the other transition (see fig.…”

Section: Mass A=86mentioning

confidence: 89%

“…18. The spin identifications are different from [23], where the M 1 multipolarity was given for the 50 keV transition instead of E1 and the multipolarity of the 187 keV transition Fig. 15.…”

Section: Mass A=86mentioning

confidence: 92%

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Isomers of astrophysical interest in neutron-deficient nuclei at masses A = 81, 85 and 86

et al. 2005

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Decay properties of neutron-deficient exotic nuclei close to A = 80 have been investigated at the IGISOL facility. The studied nuclei, 81 Y, 81 Sr, 81m Kr, 85 Nb, 85 Zr, 86 Mo and 86 Nb, were produced by a 32 S beam from the Jyväskylä isochronous cyclotron on 54 Fe and nat Ni targets. The internal conversion coefficient for a 190.5 keV isomeric transition in 81m Kr has been measured and the internal transition rate has been determined. The internal transition rate has been used to estimate a neutrino capture rate on 81 Br, which yields a log ft of 5.13 ± 0.09 for the reaction 81 Br(ν, e −) 81m Kr. A new isomer with a half-life of 3.3 ± 0.9 s has been observed in 85 Nb. The existence of an earlier reported isomer with a half-life of 56 s in 86 Nb has not been confirmed.

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Section: Mass A=86supporting

confidence: 74%

Section: Mass A=86mentioning

confidence: 89%

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Isomers of astrophysical interest in neutron-deficient nuclei at masses A = 81, 85 and 86

et al. 2005

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“…This is in agreement with the value of 19.6(11) s obtained in Ref. [48]. No evidence for the 56-s isomer was found in Ref.…”

Section: Niobium Isotopessupporting

confidence: 93%

“…For example, a half-life measurement using the isobarically purified beta emitters after JYFLTRAP would allow us to distinguish between the 20.9-s ground state and the suggested isomers with half-lives of 3.3(9) s [37] and 12(5) s [10]. 86 Nb 86 Nb has a (6 + ) ground state with a half-life of 88(1) s and a suggested high-spin isomer with a half-life of 56(8) s [48]. In the HIGISOL run employing a 150 − 170 MeV 32 S 7+ beam on a nat Ni target [37], accumulation times of 40 s and 200 s were used for A = 86.…”

Section: Niobium Isotopesmentioning

confidence: 99%

Isomer and decay studies for the rp process at IGISOL

et al. 2012

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This article reviews the decay studies of neutron-deficient nuclei within the mass region A = 56 − 100 performed at the Ion Guide Isotope Separator On-Line (IGISOL) facility in the University of Jyväskylä over last 25 years. Development from He-jet measurements to on-line mass spectrometry, and eventually to atomic mass measurements and post-trap spectroscopy at IGISOL, has yielded studies of around 100 neutron-deficient nuclei over the years. The studies form a solid foundation to astrophysical rp-process path modelling. The focus is on isomers studied either via spectroscopy or via Penning-trap mass measurements. The review is complemented with recent results on the ground and isomeric states of 90 Tc. The excitation energy of the low-spin isomer in 90 Tc has been measured as Ex = 144.1(17) keV with JYFLTRAP double Penning trap and the ground state of 90 Tc has been confirmed to be the (8 + ) state with a half-life of T 1/2 = 49.2(4) s. Finally, the mass-excess results for the spin-gap isomers 53 Co m and 95 Pd m and implications from the JYFLTRAP mass measurements for the (21 + ) isomer in 94 Ag are discussed. PACS. 23.40.-s Beta decay -21.10.-k Properties of nuclei; nuclear energy levels

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Nuclear Data Sheets for A = 86

Singh

2001

Nuclear Data Sheets

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The? + decay of the new isotope86Mo and the first observation of86m Nb

Cited by 13 publications

References 7 publications

Isomers of astrophysical interest in neutron-deficient nuclei at masses A = 81, 85 and 86

Isomers of astrophysical interest in neutron-deficient nuclei at masses A = 81, 85 and 86

Isomer and decay studies for the rp process at IGISOL

Nuclear Data Sheets for A = 86

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