High-accuracy mass measurements of neutron-rich Kr isotopes

Journal Article · Fri Sep 15 00:00:00 EDT 2006 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.74.034331· OSTI ID:20863803

Delahaye, P; Kellerbauer, A ^[1]; Audi, G; Lunney, D ^[2]; Blaum, K; George, S ^[3]; Carrel, F; Herfurth, F; Yazidjian, C ^[4]; Herlert, A; Schweikhard, L ^[5]; Kluge, H -J ^[4]

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1. ISOLDE, CERN, Physics Department, CH-1211 Geneva 23 (Switzerland)
2. CSNSM-CNRS-IN2P3, F-91405 Orsay (France)
3. Johannes Gutenberg-Universitaet, Institut fuer Physik, D-55099 Mainz (Germany)
4. Gesellschaft fuer Schwerionenforschung GSI, D-64291 Darmstadt (Germany)
5. Ernst-Moritz-Arndt-Universitaet, Institut fuer Physik, D-17487 Greifswald (Germany)

The atomic masses of the neutron-rich krypton isotopes {sup 84,86-95}Kr have been determined with the tandem Penning trap mass spectrometer ISOLTRAP with uncertainties ranging from 20 to 220 ppb. The masses of the short-lived isotopes {sup 94}Kr and {sup 95}Kr were measured for the first time. The masses of the radioactive nuclides {sup 89}Kr and {sup 91}Kr disagree by 4 and 6 standard deviations, respectively, from the present Atomic-Mass Evaluation database. The resulting modification of the mass surface with respect to the two-neutron separation energies as well as implications for mass models and stellar nucleosynthesis are discussed.

• OSTI ID: 20863803
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 74, Issue 3; Other Information: DOI: 10.1103/PhysRevC.74.034331; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ACCURACY
EVALUATION
KRYPTON 89
KRYPTON 91
KRYPTON 94
KRYPTON 95
MASS SPECTROMETERS
NEUTRON SEPARATION ENERGY
NEUTRON-RICH ISOTOPES
NUCLEOSYNTHESIS
TRAPS