Direct and beta-delayed proton decay of very neutron-deficient rare-earth isotopes produced in the reaction58Ni+92Mo

Klepper, O.; Batsch, T.; Hofmann, S.; Kirchner, R.; Kurcewicz, W.; Reisdorf, W.; Roeckl, E.; Schardt, D.; Nyman, G.

doi:10.1007/bf01415019

Cited by 124 publications

(56 citation statements)

References 10 publications

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“…The first evidence of proton emission was obtained from the decay studies of a high-spin isomer in 53 Co [2], while the first ground-state proton emission was observed in 151 La and 147 Tm more than 30 years ago [3,4]. Since then, a considerable number of proton emitters beyond the drip line have been observed [5,6].…”

mentioning

confidence: 89%

New Isotopes and Proton Emitters–Crossing the Drip Line in the Vicinity ofSn100

Čeliković¹,

Lewitowicz²,

Gernhäuser³

et al. 2016

Phys. Rev. Lett.

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Several new isotopes, 96 In, 94 Cd, 92 Ag, and 90 Pd, have been identified at the RIKEN Nishina Center.The study of proton drip-line nuclei in the vicinity of 100 Sn led to the discovery of new proton emitters 93 Ag and 89 Rh with half-lives in the submicrosecond range. The systematics of the half-lives of odd-Z nuclei with T z ¼ −1=2 toward 99 Sn shows a stabilizing effect of the Z ¼ 50 shell closure. Production cross sections for nuclei in the vicinity of 100 Sn measured at different energies and target thicknesses were compared to the cross sections calculated by EPAX taking into account contributions of secondary reactions in the primary target.

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mentioning

confidence: 89%

New Isotopes and Proton Emitters–Crossing the Drip Line in the Vicinity ofSn100

Čeliković¹,

Lewitowicz²,

Gernhäuser³

et al. 2016

Phys. Rev. Lett.

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“…Ground-state proton radioactivity was first found by Hofmann et al [3] at the velocity filter SHIP and by Klepper et al [5] at the GSI online mass separator, and assigned to the nuclei 151Lu and t47Tm. The halflives which can be detected by these two methods have to be longer than about I gs and 1 ms, respectively.…”

Section: *Present Address: Gesellschaft Ffir Sehwerionenforschung D-mentioning

confidence: 99%

“…For comparison, the halflives of the known proton emitters in the rare earth region, 151Lu [3] and 147Tm ground-state [5,11] and 14VTm excited low spin state [20], were also calculated. For these nuclei only an h11/2 ground-state, which is also expected from shell model systematies, is compatible with the experimental data.…”

Section: Halflives and Possible Ground State Configurationsmentioning

confidence: 99%

Groundstate proton radioactivity of nuclei in the tin region

Gillitzer

Hartel

Kienle

et al. 1987

Z. Physik A - Atomic Nuclei

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Dedicated to Professor Friedrich Beck on the occasion of his 60th birthdayProton radioactivities with decay energies of (0.98+0.08)MeV and (0.83___0.08)MeV were produced by the fusion reactions 58Ni + 58Ni ~ 116Ba, and 58Ni + 54Fe ~ ~ l ZXe*, and their halflives were measured to be (33 +_7)gs and (109+_ 17)gs, respectively. The intensities of the lines correspond to production cross sections of about 30 gb and 40 gb. The two activities are assigned to the direct proton decay of H3Cs and 1~ The measured halflives are compared with values calculated for d5/2 and g7/2 groundstates of 1~ and a13Cs and spectroscopic factors are deduced for the decays. An extensive search for the proton decay of 1~ produced in the reaction S~ p2n)l~ had a negative result, excluding decay energies between 0.5 MeV and 1.5 MeV for halflives between 10 ns and 5 s.

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“…The techniques applied for proton measurements have been presented in [10]. The experimental techniques applied here are similar and therefore will be reviewed only briefly.…”

Section: Experimental Techniquesmentioning

confidence: 99%

Investigations of very neutron-deficient isotopes below100Sn in40Ca-induced reactions

et al. 1982

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Very neutron-deficient isotopes of rhodium, palladium, silver, cadmium and indium in the N= 50 region were studied at the GSI on-line mass separator following bombardment of 58, 60, 62Ni and 63, 65Cu targets with 4.0 MeV/u ions of 4~The known 'properties of the t-delayed proton precursor 95mpd were confirmed, but a search for direct proton decay of 95mAg was not successful. Beta-delayed proton activities observed at mass-numbers 94, 96, 97 and 100 were assigned to the precursors 94Rh(66_+14 s), 96Ag(5.1 + 0.4 s), 97 +4 lOOin" . _ Cd(3 z s) and In addition. 94pd(9.0+0.5 s) was identified from fl-y-X studies. Individual decay schemes of 95~, 96pd and 96, 9SAg are reported.

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Direct and beta-delayed proton decay of very neutron-deficient rare-earth isotopes produced in the reaction58Ni+92Mo

Cited by 124 publications

References 10 publications

New Isotopes and Proton Emitters–Crossing the Drip Line in the Vicinity ofSn100

New Isotopes and Proton Emitters–Crossing the Drip Line in the Vicinity ofSn100

Groundstate proton radioactivity of nuclei in the tin region

Investigations of very neutron-deficient isotopes below100Sn in40Ca-induced reactions

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