β +-endpoint measurements near100Sn and146Gd

Keller, H.; Kirchner, R.; Klepper, O.; Roeckl, E.; Schardt, D.; Simon, R. S.; Kleinheinz, P.; Menegazzo, R.; Liang, C. F.; Paris, P.; Rykaczewski, K. P.; Ż̷ylicz, J.

doi:10.1007/bf01290323

Cited by 25 publications

(9 citation statements)

References 26 publications

(48 reference statements)

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“…67J.~U ground state has a rather pure (~hu/2)u/2 configuration [20], and its //-decay can be viewed as a superposition of the decays of the two below-lying N = 82 isotones 147Th65--~, which has one ~rh11/2 valence particle, and [5], T~/a 049HoH/2) = 20.5(5) (present work) b The decay strengths quoted here were recalculated from the tabulated [23] feeding intensities using the Qnc and T~/2 values quoted above in footnote ~ ~ Menegazzo et al [8,9]. ~ All states above 2 MeV, ~2 all states below 2 MeV d Kleinheinz et al [21].…”

Section: Beta Decay Resultsmentioning

confidence: 99%

“…The mass separated A = 149 activities were deposited on a transport tape and periodically transferred to the measuring position, usually with a time cycle of Simultaneously stored singles spectra gave information on the decay time. Further, high-statistics 7-ray singles spectra, up to E~ = 4 MeV, were recorded during a r endpoint measurement [5], and conversion coefficients for a few low-energy transitions were extracted from electron spectra measured with a mini-orange spectrometer.…”

Section: Measurements and Experimental Resultsmentioning

confidence: 99%

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TheN=83 nucleus149Dy from Gamow-Teller decay of its 11/2? and 1/2+ 149Ho parents

Menegazzo

Kleinheinz

Collatz

et al. 1994

Z. Physik A - Hadrons and Nuclei

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Abstract. A high-sensitivity 7-spectroscopic study of the 149Ho zchH/2 and z~s~/2 l-decays using mass separated sources has located dominant 0+---,1 + GT decay strength associated with decay of paired h**/2 protons, leading to 3 qp-states in the 149Dy daughter nucleus. In their y-decay low-lying 149Dy levels characteristic of an N= 83 nucleus are excited. They include the v f7~2, vp3/2, vh92 and vp~2 single particle-and the vs -1 and vd -1 / / 1/2 3/2 two-particle one-hole states, as well as the vf7/2 x 3-and vf7/2 x 2 + particle-phonon multiplets. A synopsis is given of these excitations in the N = 83 isotones from raNd to ~53yb. The 149Dy GT decay strength is discussed in terms of the 147Tb82 and 148Dy82 decays. The strength function results are also compared with independent 149Ho 11/2-decay data from the literature based on total y-ray absorption measurements.

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Section: Beta Decay Resultsmentioning

confidence: 99%

Section: Measurements and Experimental Resultsmentioning

confidence: 99%

TheN=83 nucleus149Dy from Gamow-Teller decay of its 11/2? and 1/2+ 149Ho parents

Menegazzo

Kleinheinz

Collatz

et al. 1994

Z. Physik A - Hadrons and Nuclei

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“…4, 5, and 6). 104 Sn: The mass of 104 Sn has been previously measured via β-decay endpoint energies [98,99]. It can also be determined from the α-decay energy of 108 [19,90] and ISOLTRAP (blue triangles) [17].…”

Section: Mass Measurements Above 100 Snmentioning

confidence: 99%

“…[15], a list of nuclides whose masses should be measured in order to more reliably model the rp-process in x-ray bursts was given. From that list, the masses of 106 Sb and 107 Sb have already been determined at JYFLTRAP [3], and interesting (but also experimentally challenging) candidates for future mass measurements at JYFLTRAP are 31 Cl, 56 Cu, 61 Ga, 83,84 Nb, 86 Tc, 89 Ru, 90 Rh, 99 In, 96 Ag, 97 Cd, and 103 Sn.…”

Section: Rp-processmentioning

confidence: 99%

Mass measurements of neutron-deficient nuclei and their implications for astrophysics

et al. 2012

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During the years 2005-2010 the double Penning trap mass spectrometer JYFLTRAP has been used to measure the masses of 90 ground and 8 isomeric states of neutron-deficient nuclides with a typical precision of better than 10 keV. The masses of 14 nuclides -84 Zr, 88,89 Tc, 90−92 Ru, 92−94 Rh, 94,95 Pd, 106,108,110 Sb -have been experimentally determined for the first time. This article gives an overview on these measurements and their impact on the modeling of the astrophysical rp-process.PACS. 21.10.Dr Binding energies and masses -26.30.Ca Explosive burning in accreting binary systems (novae, x-ray bursts)

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“…Q,-values may be determined by different ways, for example, by /3-endpoint measurements in large Si(Li) crystals and counting in coincidence with annihilation radiation [1] or by the method of 7-absorption with X-ray coincidence [2], and by some others. In this paper we describe the method of total gamma-absorption spectroscopy which was used successfully at the IRIS facility for more than ten years and present the results obtained.…”

Section: Introductionmentioning

confidence: 99%