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Fast-timing study of the $l$-forbidden $1/2^+ \rightarrow 3/2^+ M1$ transition in $^{129}Sn$
The levels in Sn129 populated from the β− decay of In129 isomers were investigated at the ISOLDE facility of CERN using the newly commissioned ISOLDE Decay Station (IDS). The lowest 1/2+ state and the 3/2+ ground state in Sn129 are expected to have configurations dominated by the neutron s1/2 (l=0)...
| Autores principales: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Lenguaje: | eng |
| Publicado: |
2016
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1103/PhysRevC.93.044303 http://cds.cern.ch/record/2262873 |
| _version_ | 1780954224131047424 |
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| author | Lică, R Mach, H Fraile, L M Gargano, A Borge, M J G Mărginean, N Sotty, C O Vedia, V Andreyev, A N Benzoni, G Bomans, P Borcea, R Coraggio, L Costache, C De Witte, H Flavigny, F Fynbo, H Gaffney, L P Greenlees, P T Harkness-Brennan, L J Huyse, M Ibáñez, P Judson, D S Konki, J Korgul, A Kröll, T Kurcewicz, J Lalkovski, S Lazarus, I Lund, M V Madurga, M Mărginean, R Marroquín, I Mihai, C Mihai, R E Morales, A I Nácher, E Negret, A Page, R D Pakarinen, J Pascu, S Paziy, V Perea, A Pérez-Liva, M Picado, E Pucknell, V Rapisarda, E Rahkila, P Rotaru, F Swartz, J A Tengblad, O Van Duppen, P Vidal, M Wadsworth, R Walters, W B Warr, N |
| author_facet | Lică, R Mach, H Fraile, L M Gargano, A Borge, M J G Mărginean, N Sotty, C O Vedia, V Andreyev, A N Benzoni, G Bomans, P Borcea, R Coraggio, L Costache, C De Witte, H Flavigny, F Fynbo, H Gaffney, L P Greenlees, P T Harkness-Brennan, L J Huyse, M Ibáñez, P Judson, D S Konki, J Korgul, A Kröll, T Kurcewicz, J Lalkovski, S Lazarus, I Lund, M V Madurga, M Mărginean, R Marroquín, I Mihai, C Mihai, R E Morales, A I Nácher, E Negret, A Page, R D Pakarinen, J Pascu, S Paziy, V Perea, A Pérez-Liva, M Picado, E Pucknell, V Rapisarda, E Rahkila, P Rotaru, F Swartz, J A Tengblad, O Van Duppen, P Vidal, M Wadsworth, R Walters, W B Warr, N |
| author_sort | Lică, R |
| collection | CERN |
| description | The levels in Sn129 populated from the β− decay of In129 isomers were investigated at the ISOLDE facility of CERN using the newly commissioned ISOLDE Decay Station (IDS). The lowest 1/2+ state and the 3/2+ ground state in Sn129 are expected to have configurations dominated by the neutron s1/2 (l=0) and d3/2 (l=2) single-particle states, respectively. Consequently, these states should be connected by a somewhat slow l-forbidden M1 transition. Using fast-timing spectroscopy we have measured the half-life of the 1/2+ 315.3-keV state, T1/2= 19(10) ps, which corresponds to a moderately fast M1 transition. Shell-model calculations using the CD-Bonn effective interaction, with standard effective charges and g factors, predict a 4-ns half-life for this level. We can reconcile the shell-model calculations to the measured T1/2 value by the renormalization of the M1 effective operator for neutron holes. |
| id | oai-inspirehep.net-1446686 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2016 |
| record_format | invenio |
| spelling | oai-inspirehep.net-14466862020-05-15T15:35:09Zdoi:10.1103/PhysRevC.93.044303http://cds.cern.ch/record/2262873engLică, RMach, HFraile, L MGargano, ABorge, M J GMărginean, NSotty, C OVedia, VAndreyev, A NBenzoni, GBomans, PBorcea, RCoraggio, LCostache, CDe Witte, HFlavigny, FFynbo, HGaffney, L PGreenlees, P THarkness-Brennan, L JHuyse, MIbáñez, PJudson, D SKonki, JKorgul, AKröll, TKurcewicz, JLalkovski, SLazarus, ILund, M VMadurga, MMărginean, RMarroquín, IMihai, CMihai, R EMorales, A INácher, ENegret, APage, R DPakarinen, JPascu, SPaziy, VPerea, APérez-Liva, MPicado, EPucknell, VRapisarda, ERahkila, PRotaru, FSwartz, J ATengblad, OVan Duppen, PVidal, MWadsworth, RWalters, W BWarr, NFast-timing study of the $l$-forbidden $1/2^+ \rightarrow 3/2^+ M1$ transition in $^{129}Sn$Nuclear Physics - ExperimentThe levels in Sn129 populated from the β− decay of In129 isomers were investigated at the ISOLDE facility of CERN using the newly commissioned ISOLDE Decay Station (IDS). The lowest 1/2+ state and the 3/2+ ground state in Sn129 are expected to have configurations dominated by the neutron s1/2 (l=0) and d3/2 (l=2) single-particle states, respectively. Consequently, these states should be connected by a somewhat slow l-forbidden M1 transition. Using fast-timing spectroscopy we have measured the half-life of the 1/2+ 315.3-keV state, T1/2= 19(10) ps, which corresponds to a moderately fast M1 transition. Shell-model calculations using the CD-Bonn effective interaction, with standard effective charges and g factors, predict a 4-ns half-life for this level. We can reconcile the shell-model calculations to the measured T1/2 value by the renormalization of the M1 effective operator for neutron holes.oai:inspirehep.net:14466862016 |
| spellingShingle | Nuclear Physics - Experiment Lică, R Mach, H Fraile, L M Gargano, A Borge, M J G Mărginean, N Sotty, C O Vedia, V Andreyev, A N Benzoni, G Bomans, P Borcea, R Coraggio, L Costache, C De Witte, H Flavigny, F Fynbo, H Gaffney, L P Greenlees, P T Harkness-Brennan, L J Huyse, M Ibáñez, P Judson, D S Konki, J Korgul, A Kröll, T Kurcewicz, J Lalkovski, S Lazarus, I Lund, M V Madurga, M Mărginean, R Marroquín, I Mihai, C Mihai, R E Morales, A I Nácher, E Negret, A Page, R D Pakarinen, J Pascu, S Paziy, V Perea, A Pérez-Liva, M Picado, E Pucknell, V Rapisarda, E Rahkila, P Rotaru, F Swartz, J A Tengblad, O Van Duppen, P Vidal, M Wadsworth, R Walters, W B Warr, N Fast-timing study of the $l$-forbidden $1/2^+ \rightarrow 3/2^+ M1$ transition in $^{129}Sn$ |
| title | Fast-timing study of the $l$-forbidden $1/2^+ \rightarrow 3/2^+ M1$ transition in $^{129}Sn$ |
| title_full | Fast-timing study of the $l$-forbidden $1/2^+ \rightarrow 3/2^+ M1$ transition in $^{129}Sn$ |
| title_fullStr | Fast-timing study of the $l$-forbidden $1/2^+ \rightarrow 3/2^+ M1$ transition in $^{129}Sn$ |
| title_full_unstemmed | Fast-timing study of the $l$-forbidden $1/2^+ \rightarrow 3/2^+ M1$ transition in $^{129}Sn$ |
| title_short | Fast-timing study of the $l$-forbidden $1/2^+ \rightarrow 3/2^+ M1$ transition in $^{129}Sn$ |
| title_sort | fast-timing study of the $l$-forbidden $1/2^+ \rightarrow 3/2^+ m1$ transition in $^{129}sn$ |
| topic | Nuclear Physics - Experiment |
| url | https://dx.doi.org/10.1103/PhysRevC.93.044303 http://cds.cern.ch/record/2262873 |
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