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The decay of $^{8}$He
Delayed neutron and gamma emission following the beta decay of /sup 8 /He have been studied. The P/sub n/ value was determined to be (16+or-1)%, indicating that (84+or-1)% of the beta -decays feed the 981 keV first excited state in /sup 8/Li. It was found that (32+or-3)% of emitted neutrons populate...
| Autores principales: | , , , , , , , , , |
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| Lenguaje: | eng |
| Publicado: |
1981
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1016/0375-9474(81)90522-4 http://cds.cern.ch/record/134357 |
| _version_ | 1780879756394233856 |
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| author | Bjørnstad, T Gustafsson, Hans Åke Jonson, B Larsson, P O Lindfors, V Mattsson, S Nyman, G H Poskanzer, A M Ravn, H L Schardt, D |
| author_facet | Bjørnstad, T Gustafsson, Hans Åke Jonson, B Larsson, P O Lindfors, V Mattsson, S Nyman, G H Poskanzer, A M Ravn, H L Schardt, D |
| author_sort | Bjørnstad, T |
| collection | CERN |
| description | Delayed neutron and gamma emission following the beta decay of /sup 8 /He have been studied. The P/sub n/ value was determined to be (16+or-1)%, indicating that (84+or-1)% of the beta -decays feed the 981 keV first excited state in /sup 8/Li. It was found that (32+or-3)% of emitted neutrons populate the first excited state in /sup 7/Li at 478 keV. The measured energy spectrum of delayed neutrons can be interpreted as mainly arising from the 3.21 MeV and 5.4 MeV states in /sup 8/Li. Limits were set on charged particle emission. The half-life was determined to be 117.5+or-1.5 ms. (14 refs). |
| id | cern-134357 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 1981 |
| record_format | invenio |
| spelling | cern-1343572019-09-30T06:29:59Zdoi:10.1016/0375-9474(81)90522-4http://cds.cern.ch/record/134357engBjørnstad, TGustafsson, Hans ÅkeJonson, BLarsson, P OLindfors, VMattsson, SNyman, G HPoskanzer, A MRavn, H LSchardt, DThe decay of $^{8}$HeNuclear Physics - ExperimentDelayed neutron and gamma emission following the beta decay of /sup 8 /He have been studied. The P/sub n/ value was determined to be (16+or-1)%, indicating that (84+or-1)% of the beta -decays feed the 981 keV first excited state in /sup 8/Li. It was found that (32+or-3)% of emitted neutrons populate the first excited state in /sup 7/Li at 478 keV. The measured energy spectrum of delayed neutrons can be interpreted as mainly arising from the 3.21 MeV and 5.4 MeV states in /sup 8/Li. Limits were set on charged particle emission. The half-life was determined to be 117.5+or-1.5 ms. (14 refs).CERN-EP-81-11oai:cds.cern.ch:1343571981-02-17 |
| spellingShingle | Nuclear Physics - Experiment Bjørnstad, T Gustafsson, Hans Åke Jonson, B Larsson, P O Lindfors, V Mattsson, S Nyman, G H Poskanzer, A M Ravn, H L Schardt, D The decay of $^{8}$He |
| title | The decay of $^{8}$He |
| title_full | The decay of $^{8}$He |
| title_fullStr | The decay of $^{8}$He |
| title_full_unstemmed | The decay of $^{8}$He |
| title_short | The decay of $^{8}$He |
| title_sort | decay of $^{8}$he |
| topic | Nuclear Physics - Experiment |
| url | https://dx.doi.org/10.1016/0375-9474(81)90522-4 http://cds.cern.ch/record/134357 |
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