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Search for beta-delayed charged particles from the halo nucleus sup 1 sup 4 Be
In a search for beta-delayed charged particles from sup 1 sup 4 Be we have obtained an upper limit on beta-delayed alpha particles, B(beta alpha)<1.2x10 sup - sup 4 , and found evidence for beta-delayed tritons at intensity of 6x10 sup - sup 5 <B(beta t)<4x10 sup - sup 4 (both at 95% confid...
| Autores principales: | , , , , , , , , , , , , , , |
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| Lenguaje: | eng |
| Publicado: |
2002
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1016/S0375-9474(02)01093-X http://cds.cern.ch/record/774115 |
| _version_ | 1780904300198756352 |
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| author | Jeppesen, H B Bergmann, U.C. Borge, M.J.G. Cederkäll, J. Fedoseyev, V.N. Fynbo, H.O.U. Hansper, V.Y. Jonson, B. Markenroth, K. Mishin, V.I. Nilsson, T. Nyman, G. Riisager, K. Tengblad, O. Rolander, K.Wilhelmsen |
| author_facet | Jeppesen, H B Bergmann, U.C. Borge, M.J.G. Cederkäll, J. Fedoseyev, V.N. Fynbo, H.O.U. Hansper, V.Y. Jonson, B. Markenroth, K. Mishin, V.I. Nilsson, T. Nyman, G. Riisager, K. Tengblad, O. Rolander, K.Wilhelmsen |
| author_sort | Jeppesen, H B |
| collection | CERN |
| description | In a search for beta-delayed charged particles from sup 1 sup 4 Be we have obtained an upper limit on beta-delayed alpha particles, B(beta alpha)<1.2x10 sup - sup 4 , and found evidence for beta-delayed tritons at intensity of 6x10 sup - sup 5 <B(beta t)<4x10 sup - sup 4 (both at 95% confidence level). By adding information on the beta-delayed neutron branches from direct measurements at low neutron energy and indirect detection via recoiling nuclei at high energy, and by including also information from earlier experiments, we deduce the beta strength distribution from sup 1 sup 4 Be. This differs significantly from shell-model calculations at high excitation energy. |
| id | cern-774115 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2002 |
| record_format | invenio |
| spelling | cern-7741152019-09-30T06:29:59Zdoi:10.1016/S0375-9474(02)01093-Xhttp://cds.cern.ch/record/774115engJeppesen, H BBergmann, U.C.Borge, M.J.G.Cederkäll, J.Fedoseyev, V.N.Fynbo, H.O.U.Hansper, V.Y.Jonson, B.Markenroth, K.Mishin, V.I.Nilsson, T.Nyman, G.Riisager, K.Tengblad, O.Rolander, K.WilhelmsenSearch for beta-delayed charged particles from the halo nucleus sup 1 sup 4 BeNuclear Physics - ExperimentIn a search for beta-delayed charged particles from sup 1 sup 4 Be we have obtained an upper limit on beta-delayed alpha particles, B(beta alpha)<1.2x10 sup - sup 4 , and found evidence for beta-delayed tritons at intensity of 6x10 sup - sup 5 <B(beta t)<4x10 sup - sup 4 (both at 95% confidence level). By adding information on the beta-delayed neutron branches from direct measurements at low neutron energy and indirect detection via recoiling nuclei at high energy, and by including also information from earlier experiments, we deduce the beta strength distribution from sup 1 sup 4 Be. This differs significantly from shell-model calculations at high excitation energy.oai:cds.cern.ch:7741152002 |
| spellingShingle | Nuclear Physics - Experiment Jeppesen, H B Bergmann, U.C. Borge, M.J.G. Cederkäll, J. Fedoseyev, V.N. Fynbo, H.O.U. Hansper, V.Y. Jonson, B. Markenroth, K. Mishin, V.I. Nilsson, T. Nyman, G. Riisager, K. Tengblad, O. Rolander, K.Wilhelmsen Search for beta-delayed charged particles from the halo nucleus sup 1 sup 4 Be |
| title | Search for beta-delayed charged particles from the halo nucleus sup 1 sup 4 Be |
| title_full | Search for beta-delayed charged particles from the halo nucleus sup 1 sup 4 Be |
| title_fullStr | Search for beta-delayed charged particles from the halo nucleus sup 1 sup 4 Be |
| title_full_unstemmed | Search for beta-delayed charged particles from the halo nucleus sup 1 sup 4 Be |
| title_short | Search for beta-delayed charged particles from the halo nucleus sup 1 sup 4 Be |
| title_sort | search for beta-delayed charged particles from the halo nucleus sup 1 sup 4 be |
| topic | Nuclear Physics - Experiment |
| url | https://dx.doi.org/10.1016/S0375-9474(02)01093-X http://cds.cern.ch/record/774115 |
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