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$\beta$-decay half-life of $^{70}$Kr: a bridge nuclide for the rp-process beyond A = 70
The $\beta$-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 ca...
| Autores principales: | , , , , , , , , , , , , , , , |
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| Lenguaje: | eng |
| Publicado: |
1999
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1103/PhysRevC.61.035801 http://cds.cern.ch/record/422369 |
| _version_ | 1780894887160315904 |
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| author | Oinonen, M Äystö, J Jokinen, A Baumann, P Didierjean, François Huck, A Knipper, A Ramdhane, M Walter, G Van Duppen, P Huyse, M Marguier, G Novikov, Yu N Popov, A Seliverstov, D M Schatz, H |
| author_facet | Oinonen, M Äystö, J Jokinen, A Baumann, P Didierjean, François Huck, A Knipper, A Ramdhane, M Walter, G Van Duppen, P Huyse, M Marguier, G Novikov, Yu N Popov, A Seliverstov, D M Schatz, H |
| author_sort | Oinonen, M |
| collection | CERN |
| description | The $\beta$-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$^{3}$. |
| id | cern-422369 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 1999 |
| record_format | invenio |
| spelling | cern-4223692019-09-30T06:29:59Zdoi:10.1103/PhysRevC.61.035801http://cds.cern.ch/record/422369engOinonen, MÄystö, JJokinen, ABaumann, PDidierjean, FrançoisHuck, AKnipper, ARamdhane, MWalter, GVan Duppen, PHuyse, MMarguier, GNovikov, Yu NPopov, ASeliverstov, D MSchatz, H$\beta$-decay half-life of $^{70}$Kr: a bridge nuclide for the rp-process beyond A = 70Nuclear Physics - ExperimentThe $\beta$-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$^{3}$.CERN-EP-99-177oai:cds.cern.ch:4223691999-12-15 |
| spellingShingle | Nuclear Physics - Experiment Oinonen, M Äystö, J Jokinen, A Baumann, P Didierjean, François Huck, A Knipper, A Ramdhane, M Walter, G Van Duppen, P Huyse, M Marguier, G Novikov, Yu N Popov, A Seliverstov, D M Schatz, H $\beta$-decay half-life of $^{70}$Kr: a bridge nuclide for the rp-process beyond A = 70 |
| title | $\beta$-decay half-life of $^{70}$Kr: a bridge nuclide for the rp-process beyond A = 70 |
| title_full | $\beta$-decay half-life of $^{70}$Kr: a bridge nuclide for the rp-process beyond A = 70 |
| title_fullStr | $\beta$-decay half-life of $^{70}$Kr: a bridge nuclide for the rp-process beyond A = 70 |
| title_full_unstemmed | $\beta$-decay half-life of $^{70}$Kr: a bridge nuclide for the rp-process beyond A = 70 |
| title_short | $\beta$-decay half-life of $^{70}$Kr: a bridge nuclide for the rp-process beyond A = 70 |
| title_sort | $\beta$-decay half-life of $^{70}$kr: a bridge nuclide for the rp-process beyond a = 70 |
| topic | Nuclear Physics - Experiment |
| url | https://dx.doi.org/10.1103/PhysRevC.61.035801 http://cds.cern.ch/record/422369 |
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