6533b835fe1ef96bd129e9ac
RESEARCH PRODUCT
β-decay half-life of70Kr: A bridge nuclide for therpprocess beyondA=70
Marc HuyseMarkku OinonenA. KnipperG. MarguierA. PopovJuha ÄYstöP. Van DuppenA. HuckD. M. SeliverstovM. RamdhaneYu. N. NovikovA. JokinenHendrik SchatzP. BaumannG. WalterF. Didierjeansubject
PhysicsNuclear and High Energy PhysicsDecay schemeProton010308 nuclear & particles physicsHalf-liferp-process01 natural sciences7. Clean energyBeta decayNuclear physicsDouble beta decay0103 physical sciencesSpallationNuclideAtomic physics010306 general physicsdescription
The -decay half-life of 70 Kr has been measured for the first time at the ISOLDE PSB Facility at CERN. Mass separated 70 Kr 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 68 Se is 2.5 times faster than previously calculated assuming an astrophysical temperature of 1.5 GK and a density of 10 6 g/cm 3 .
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2000-02-14 | Physical Review C |