β-decay half-life of 70Kr: A bridge nuclide for the rp process beyond A=70

Details β-decay half-life of 70Kr: A bridge nuclide for the rp process beyond A=70 β-decay half-life of 70Kr: A bridge nuclide for the rp process beyond A=70

Mar 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000phrvc..61c5801o&link_type=abstract

Physical Review C (Nuclear Physics), Volume 61, Issue 3, March 2000, id.035801

Physics

Nuclear Physics

10

Nucleosynthesis In Novae, Supernovae, And Other Explosive Environments, Lifetimes, Beta Decay, Double Beta Decay, Electron And Muon Capture, Nuclear Physics Aspects Of Novae, Supernovae, And Other Explosive Environments

Scientific paper

The β-decay half-life of 70Kr has been measured for the first time at the ISOLDE PSB Facility at CERN. Mass separated 70Kr ions were produced by 1 GeV proton-induced spallation reactions in a Nb foil. The measured half-life is 57(21) ms. This value is consistent with the half-life calculated assuming a pure Fermi decay, but is clearly lower than the value used in a recent rp-process reaction flow calculation. The result shows that the reaction flow via two-proton-capture of 68Se is 2.5 times faster than previously calculated assuming an astrophysical temperature of 1.5 GK and a density of 106 g/cm3.

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