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Isospin dependence of electromagnetic transition strengths among an isobaric triplet
Electric quadrupole matrix elements, Mp , for the Jπ=2+→0+ , ΔT=0 , T=1 transitions across the A=46 isobaric multiplet 46 Cr- 46 V- 46 Ti have been measured at GSI with the FRS-LYCCA-AGATA setup. This allows direct insight into the isospin purity of the states of interest by testing the linearity of...
| Autores principales: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Lenguaje: | eng |
| Publicado: |
2019
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1016/j.physletb.2019.134835 http://cds.cern.ch/record/2699861 |
| _version_ | 1780964501988835328 |
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| author | Boso, A Milne, S A Bentley, M A Recchia, F Lenzi, S M Rudolph, D Labiche, M Pereira-Lopez, X Afara, S Ameil, F Arici, T Aydin, S Axiotis, M Barrientos, D Benzoni, G Birkenbach, B Boston, A J Boston, H C Boutachkov, P Bracco, A Bruce, A M Bruyneel, B Cederwall, B Clément, E Cortes, M L Cullen, D M Désesquelles, P Dombràdi, Zs Domingo-Pardo, C Eberth, J Fahlander, C Gelain, M González, V John, P R Gerl, J Golubev, P Górska, M Gottardo, A Grahn, T Grassi, L Habermann, T Harkness-Brennan, L J Henry, T W Hess, H Kojouharov, I Korten, W Lalović, N Lettmann, M Lizarazo, C Louchart-Henning, C Menegazzo, R Mengoni, D Merchan, E Michelagnoli, C Million, B Modamio, V Moeller, T Napoli, D R Nyberg, J Nara Singh, B S Pai, H Pietralla, N Pietri, S Podolyak, Zs Perez Vidal, R M Pullia, A Ralet, D Rainovski, G Reese, M Reiter, P Salsac, M D Sanchis, E Sarmiento, L G Schaffner, H Scruton, L M Singh, P P Stahl, C Uthayakumaar, S Valiente-Dobón, J J Wieland, O |
| author_facet | Boso, A Milne, S A Bentley, M A Recchia, F Lenzi, S M Rudolph, D Labiche, M Pereira-Lopez, X Afara, S Ameil, F Arici, T Aydin, S Axiotis, M Barrientos, D Benzoni, G Birkenbach, B Boston, A J Boston, H C Boutachkov, P Bracco, A Bruce, A M Bruyneel, B Cederwall, B Clément, E Cortes, M L Cullen, D M Désesquelles, P Dombràdi, Zs Domingo-Pardo, C Eberth, J Fahlander, C Gelain, M González, V John, P R Gerl, J Golubev, P Górska, M Gottardo, A Grahn, T Grassi, L Habermann, T Harkness-Brennan, L J Henry, T W Hess, H Kojouharov, I Korten, W Lalović, N Lettmann, M Lizarazo, C Louchart-Henning, C Menegazzo, R Mengoni, D Merchan, E Michelagnoli, C Million, B Modamio, V Moeller, T Napoli, D R Nyberg, J Nara Singh, B S Pai, H Pietralla, N Pietri, S Podolyak, Zs Perez Vidal, R M Pullia, A Ralet, D Rainovski, G Reese, M Reiter, P Salsac, M D Sanchis, E Sarmiento, L G Schaffner, H Scruton, L M Singh, P P Stahl, C Uthayakumaar, S Valiente-Dobón, J J Wieland, O |
| author_sort | Boso, A |
| collection | CERN |
| description | Electric quadrupole matrix elements, Mp , for the Jπ=2+→0+ , ΔT=0 , T=1 transitions across the A=46 isobaric multiplet 46 Cr- 46 V- 46 Ti have been measured at GSI with the FRS-LYCCA-AGATA setup. This allows direct insight into the isospin purity of the states of interest by testing the linearity of Mp with respect to Tz . Pairs of nuclei in the T=1 triplet were studied using identical reaction mechanisms in order to control systematic errors. The Mp values were obtained with two different methodologies: (i) a relativistic Coulomb excitation experiment was performed for 46 Cr and 46 Ti; (ii) a “stretched target” technique was adopted here, for the first time, for lifetime measurements in 46 V and 46 Ti. A constant value of Mp across the triplet has been observed. Shell-model calculations performed within the fp shell fail to reproduce this unexpected trend, pointing towards the need of a wider valence space. This result is confirmed by the good agreement with experimental data achieved with an interaction which allows excitations from the underlying sd shell. A test of the linearity rule for all published data on complete T=1 isospin triplets is presented. |
| id | oai-inspirehep.net-1762785 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2019 |
| record_format | invenio |
| spelling | oai-inspirehep.net-17627852019-11-27T08:34:53Zdoi:10.1016/j.physletb.2019.134835http://cds.cern.ch/record/2699861engBoso, AMilne, S ABentley, M ARecchia, FLenzi, S MRudolph, DLabiche, MPereira-Lopez, XAfara, SAmeil, FArici, TAydin, SAxiotis, MBarrientos, DBenzoni, GBirkenbach, BBoston, A JBoston, H CBoutachkov, PBracco, ABruce, A MBruyneel, BCederwall, BClément, ECortes, M LCullen, D MDésesquelles, PDombràdi, ZsDomingo-Pardo, CEberth, JFahlander, CGelain, MGonzález, VJohn, P RGerl, JGolubev, PGórska, MGottardo, AGrahn, TGrassi, LHabermann, THarkness-Brennan, L JHenry, T WHess, HKojouharov, IKorten, WLalović, NLettmann, MLizarazo, CLouchart-Henning, CMenegazzo, RMengoni, DMerchan, EMichelagnoli, CMillion, BModamio, VMoeller, TNapoli, D RNyberg, JNara Singh, B SPai, HPietralla, NPietri, SPodolyak, ZsPerez Vidal, R MPullia, ARalet, DRainovski, GReese, MReiter, PSalsac, M DSanchis, ESarmiento, L GSchaffner, HScruton, L MSingh, P PStahl, CUthayakumaar, SValiente-Dobón, J JWieland, OIsospin dependence of electromagnetic transition strengths among an isobaric tripletNuclear Physics - ExperimentElectric quadrupole matrix elements, Mp , for the Jπ=2+→0+ , ΔT=0 , T=1 transitions across the A=46 isobaric multiplet 46 Cr- 46 V- 46 Ti have been measured at GSI with the FRS-LYCCA-AGATA setup. This allows direct insight into the isospin purity of the states of interest by testing the linearity of Mp with respect to Tz . Pairs of nuclei in the T=1 triplet were studied using identical reaction mechanisms in order to control systematic errors. The Mp values were obtained with two different methodologies: (i) a relativistic Coulomb excitation experiment was performed for 46 Cr and 46 Ti; (ii) a “stretched target” technique was adopted here, for the first time, for lifetime measurements in 46 V and 46 Ti. A constant value of Mp across the triplet has been observed. Shell-model calculations performed within the fp shell fail to reproduce this unexpected trend, pointing towards the need of a wider valence space. This result is confirmed by the good agreement with experimental data achieved with an interaction which allows excitations from the underlying sd shell. A test of the linearity rule for all published data on complete T=1 isospin triplets is presented.oai:inspirehep.net:17627852019 |
| spellingShingle | Nuclear Physics - Experiment Boso, A Milne, S A Bentley, M A Recchia, F Lenzi, S M Rudolph, D Labiche, M Pereira-Lopez, X Afara, S Ameil, F Arici, T Aydin, S Axiotis, M Barrientos, D Benzoni, G Birkenbach, B Boston, A J Boston, H C Boutachkov, P Bracco, A Bruce, A M Bruyneel, B Cederwall, B Clément, E Cortes, M L Cullen, D M Désesquelles, P Dombràdi, Zs Domingo-Pardo, C Eberth, J Fahlander, C Gelain, M González, V John, P R Gerl, J Golubev, P Górska, M Gottardo, A Grahn, T Grassi, L Habermann, T Harkness-Brennan, L J Henry, T W Hess, H Kojouharov, I Korten, W Lalović, N Lettmann, M Lizarazo, C Louchart-Henning, C Menegazzo, R Mengoni, D Merchan, E Michelagnoli, C Million, B Modamio, V Moeller, T Napoli, D R Nyberg, J Nara Singh, B S Pai, H Pietralla, N Pietri, S Podolyak, Zs Perez Vidal, R M Pullia, A Ralet, D Rainovski, G Reese, M Reiter, P Salsac, M D Sanchis, E Sarmiento, L G Schaffner, H Scruton, L M Singh, P P Stahl, C Uthayakumaar, S Valiente-Dobón, J J Wieland, O Isospin dependence of electromagnetic transition strengths among an isobaric triplet |
| title | Isospin dependence of electromagnetic transition strengths among an isobaric triplet |
| title_full | Isospin dependence of electromagnetic transition strengths among an isobaric triplet |
| title_fullStr | Isospin dependence of electromagnetic transition strengths among an isobaric triplet |
| title_full_unstemmed | Isospin dependence of electromagnetic transition strengths among an isobaric triplet |
| title_short | Isospin dependence of electromagnetic transition strengths among an isobaric triplet |
| title_sort | isospin dependence of electromagnetic transition strengths among an isobaric triplet |
| topic | Nuclear Physics - Experiment |
| url | https://dx.doi.org/10.1016/j.physletb.2019.134835 http://cds.cern.ch/record/2699861 |
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