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$^{11}$Be($\beta$p), a quasi-free neutron decay?
We have observed $\beta$-delayed proton emission from the neutron-rich nucleus $^{11}$Be by analysing a sample collected at the ISOLDE facility at CERN with accelerator mass spectrometry (AMS). With a branching ratio of (8.4 $\pm$ 0.6)$\times$ 10$^{-6}$ the strength of this decay mode, as measured b...
| Autores principales: | , , , , , , , , , , , , , , , , , , , , |
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| Lenguaje: | eng |
| Publicado: |
2014
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1016/j.physletb.2014.03.062 http://cds.cern.ch/record/1647296 |
| _version_ | 1780935139546628096 |
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| author | Riisager, K. Forstner, O. Borge, M.J.G. Briz, J.A. Carmona-Gallardo, M. Fraile, L.M. Fynbo, H.O.U. Giles, T. Gottberg, A. Heinz, A. Johansen, J.G. Jonson, B. Kurcewicz, J. Lund, M.V. Nilsson, T. Nyman, G. Rapisarda, E. Steier, P. Tengblad, O. Thies, R. Winkler, S.R. |
| author_facet | Riisager, K. Forstner, O. Borge, M.J.G. Briz, J.A. Carmona-Gallardo, M. Fraile, L.M. Fynbo, H.O.U. Giles, T. Gottberg, A. Heinz, A. Johansen, J.G. Jonson, B. Kurcewicz, J. Lund, M.V. Nilsson, T. Nyman, G. Rapisarda, E. Steier, P. Tengblad, O. Thies, R. Winkler, S.R. |
| author_sort | Riisager, K. |
| collection | CERN |
| description | We have observed $\beta$-delayed proton emission from the neutron-rich nucleus $^{11}$Be by analysing a sample collected at the ISOLDE facility at CERN with accelerator mass spectrometry (AMS). With a branching ratio of (8.4 $\pm$ 0.6)$\times$ 10$^{-6}$ the strength of this decay mode, as measured by the B$_\mathrm{GT}$-value, is unexpectedly high. The result is discussed within a simple single-particle model and could be interpreted as a quasi-free decay of the $^{11}$Be halo neutron into a single-proton state. |
| id | cern-1647296 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2014 |
| record_format | invenio |
| spelling | cern-16472962022-08-10T20:22:17Zdoi:10.1016/j.physletb.2014.03.062http://cds.cern.ch/record/1647296engRiisager, K.Forstner, O.Borge, M.J.G.Briz, J.A.Carmona-Gallardo, M.Fraile, L.M.Fynbo, H.O.U.Giles, T.Gottberg, A.Heinz, A.Johansen, J.G.Jonson, B.Kurcewicz, J.Lund, M.V.Nilsson, T.Nyman, G.Rapisarda, E.Steier, P.Tengblad, O.Thies, R.Winkler, S.R.$^{11}$Be($\beta$p), a quasi-free neutron decay?Nuclear Physics - ExperimentWe have observed $\beta$-delayed proton emission from the neutron-rich nucleus $^{11}$Be by analysing a sample collected at the ISOLDE facility at CERN with accelerator mass spectrometry (AMS). With a branching ratio of (8.4 $\pm$ 0.6)$\times$ 10$^{-6}$ the strength of this decay mode, as measured by the B$_\mathrm{GT}$-value, is unexpectedly high. The result is discussed within a simple single-particle model and could be interpreted as a quasi-free decay of the $^{11}$Be halo neutron into a single-proton state.We have observed β− -delayed proton emission from the neutron-rich nucleus 11 Be by analyzing a sample collected at the ISOLDE facility at CERN with accelerator mass spectrometry (AMS). With a branching ratio of (8.3±0.9)⋅10−6 the strength of this decay mode, as measured by the BGT -value, is unexpectedly high. The result is discussed within a simple single-particle model and could be interpreted as a quasi-free decay of the 11 Be halo neutron into a single-proton state.We have observed beta-delayed proton emission from the neutron-rich nucleus 11Be by analysing a sample collected at the ISOLDE facility at CERN with accelerator mass spectrometry (AMS). With a branching ratio of (8.4 +- 0.6) 10^{-6} the strength of this decay mode, as measured by the B(GT)-value, is unexpectedly high. The result is discussed within a simple single-particle model and could be interpreted as a quasi-free decay of the 11Be halo neutron into a single-proton state.arXiv:1402.1645oai:cds.cern.ch:16472962014-02-07 |
| spellingShingle | Nuclear Physics - Experiment Riisager, K. Forstner, O. Borge, M.J.G. Briz, J.A. Carmona-Gallardo, M. Fraile, L.M. Fynbo, H.O.U. Giles, T. Gottberg, A. Heinz, A. Johansen, J.G. Jonson, B. Kurcewicz, J. Lund, M.V. Nilsson, T. Nyman, G. Rapisarda, E. Steier, P. Tengblad, O. Thies, R. Winkler, S.R. $^{11}$Be($\beta$p), a quasi-free neutron decay? |
| title | $^{11}$Be($\beta$p), a quasi-free neutron decay? |
| title_full | $^{11}$Be($\beta$p), a quasi-free neutron decay? |
| title_fullStr | $^{11}$Be($\beta$p), a quasi-free neutron decay? |
| title_full_unstemmed | $^{11}$Be($\beta$p), a quasi-free neutron decay? |
| title_short | $^{11}$Be($\beta$p), a quasi-free neutron decay? |
| title_sort | $^{11}$be($\beta$p), a quasi-free neutron decay? |
| topic | Nuclear Physics - Experiment |
| url | https://dx.doi.org/10.1016/j.physletb.2014.03.062 http://cds.cern.ch/record/1647296 |
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