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Evidence of a new state in $^{11}$Be observed in the $^{11}$Li $\beta$-decay
Coincidences between charged particles emitted in the $\beta$-decay of $^{11}$Li were observed using highly segmented detectors. The breakup channels involving three particles were studied in full kinematics allowing for the reconstruction of the excitation energy of the $^{11}$Be states participati...
| Autores principales: | , , , , , , , , , , , , , , , |
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| Lenguaje: | eng |
| Publicado: |
2009
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1016/j.physletb.2009.05.050 http://cds.cern.ch/record/1174516 |
| _version_ | 1780916217363562496 |
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| author | Madurga, M García-Borge, M J Alcorta, M Fraile, L M Fynbo, H O U Jonsond, B Kirsebom, O Martínez-Pinedo, G Nilsson, T Nyman, G Perea, A Poves, A Riisager, K Tengblad, O Tengborn, E Van der Walle, J |
| author_facet | Madurga, M García-Borge, M J Alcorta, M Fraile, L M Fynbo, H O U Jonsond, B Kirsebom, O Martínez-Pinedo, G Nilsson, T Nyman, G Perea, A Poves, A Riisager, K Tengblad, O Tengborn, E Van der Walle, J |
| author_sort | Madurga, M |
| collection | CERN |
| description | Coincidences between charged particles emitted in the $\beta$-decay of $^{11}$Li were observed using highly segmented detectors. The breakup channels involving three particles were studied in full kinematics allowing for the reconstruction of the excitation energy of the $^{11}$Be states participating in the decay. In particular, the contribution of a previously unobserved state at 16.3 MeV in $^{11}$Be has been identified selecting the $\alpha$ + $^7$He$\to\alpha$ + $^6$He+n channel. The angular correlations between the $\alpha$ particle and the center of mass of the $^6$He+n system favors spin and parity assignment of 3/2$^-$ for this state as well as for the previously known state at 18 MeV. |
| id | cern-1174516 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2009 |
| record_format | invenio |
| spelling | cern-11745162019-09-30T06:29:59Zdoi:10.1016/j.physletb.2009.05.050http://cds.cern.ch/record/1174516engMadurga, MGarcía-Borge, M JAlcorta, MFraile, L MFynbo, H O UJonsond, BKirsebom, OMartínez-Pinedo, GNilsson, TNyman, GPerea, APoves, ARiisager, KTengblad, OTengborn, EVan der Walle, JEvidence of a new state in $^{11}$Be observed in the $^{11}$Li $\beta$-decayNuclear Physics - ExperimentCoincidences between charged particles emitted in the $\beta$-decay of $^{11}$Li were observed using highly segmented detectors. The breakup channels involving three particles were studied in full kinematics allowing for the reconstruction of the excitation energy of the $^{11}$Be states participating in the decay. In particular, the contribution of a previously unobserved state at 16.3 MeV in $^{11}$Be has been identified selecting the $\alpha$ + $^7$He$\to\alpha$ + $^6$He+n channel. The angular correlations between the $\alpha$ particle and the center of mass of the $^6$He+n system favors spin and parity assignment of 3/2$^-$ for this state as well as for the previously known state at 18 MeV.arXiv:0904.4212oai:cds.cern.ch:11745162009-04-28 |
| spellingShingle | Nuclear Physics - Experiment Madurga, M García-Borge, M J Alcorta, M Fraile, L M Fynbo, H O U Jonsond, B Kirsebom, O Martínez-Pinedo, G Nilsson, T Nyman, G Perea, A Poves, A Riisager, K Tengblad, O Tengborn, E Van der Walle, J Evidence of a new state in $^{11}$Be observed in the $^{11}$Li $\beta$-decay |
| title | Evidence of a new state in $^{11}$Be observed in the $^{11}$Li $\beta$-decay |
| title_full | Evidence of a new state in $^{11}$Be observed in the $^{11}$Li $\beta$-decay |
| title_fullStr | Evidence of a new state in $^{11}$Be observed in the $^{11}$Li $\beta$-decay |
| title_full_unstemmed | Evidence of a new state in $^{11}$Be observed in the $^{11}$Li $\beta$-decay |
| title_short | Evidence of a new state in $^{11}$Be observed in the $^{11}$Li $\beta$-decay |
| title_sort | evidence of a new state in $^{11}$be observed in the $^{11}$li $\beta$-decay |
| topic | Nuclear Physics - Experiment |
| url | https://dx.doi.org/10.1016/j.physletb.2009.05.050 http://cds.cern.ch/record/1174516 |
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