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Low-lying electric dipole $γ$-continuum for the unstable $^{62,64}$Fe nuclei: Strength evolution with neutron number
The γ -ray emission from the nuclei $^{62,64}$Fe following Coulomb excitation at bombarding energy of 400-440 AMeV was measured with special focus on E 1 transitions in the energy region 4-8 MeV. The unstable neutron-rich nuclei $^{62,64}$Fe were produced at the FAIR-GSI laboratories and selected wi...
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| Lenguaje: | eng |
| Publicado: |
2020
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1016/j.physletb.2020.135951 http://cds.cern.ch/record/2746087 |
| _version_ | 1780968814764097536 |
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| author | Avigo, R Wieland, O Bracco, A Camera, F Ameil, F Arici, T Ataç, A Barrientos, D Bazzacco, D Bednarczyk, P Benzoni, G Birkenbach, B Blasi, N Boston, H C Bottoni, S Brambilla, S Bruyneel, B Ciemała, M Clément, E Cortés, M L Crespi, F C L Cullen, D M Curien, D Didierjean, F Domingo-Pardo, C Duchêne, G Eberth, J Görgen, A Gadea, A Gerl, J Goel, N Golubev, P González, V Górska, M Gottardo, A Gregor, E Guastalla, G Habermann, T Harkness-Brennan, L J Jungclaus, A Kmiecik, M Kojouharov, I Korten, W Kurz, N Labiche, M Lalović, N Leoni, S Lettmann, M Maj, A Menegazzo, R Mengoni, D Merchan, E Million, B Morales, A I Napoli, D R Nociforo, C Nyberg, J Pietralla, N Pietri, S Podolyák, Zs Ponomarev, V Yu Pullia, A Quintana, B Rainovski, G Ralet, D Recchia, F Reese, M Regan, P Reiter, P Riboldi, S Rudolph, D Salsac, M D Sanchis, E Sarmiento, L G Schaffner, H Simpson, J Stezowski, O Valiente-Dobón, J J Wollersheim, H J |
| author_facet | Avigo, R Wieland, O Bracco, A Camera, F Ameil, F Arici, T Ataç, A Barrientos, D Bazzacco, D Bednarczyk, P Benzoni, G Birkenbach, B Blasi, N Boston, H C Bottoni, S Brambilla, S Bruyneel, B Ciemała, M Clément, E Cortés, M L Crespi, F C L Cullen, D M Curien, D Didierjean, F Domingo-Pardo, C Duchêne, G Eberth, J Görgen, A Gadea, A Gerl, J Goel, N Golubev, P González, V Górska, M Gottardo, A Gregor, E Guastalla, G Habermann, T Harkness-Brennan, L J Jungclaus, A Kmiecik, M Kojouharov, I Korten, W Kurz, N Labiche, M Lalović, N Leoni, S Lettmann, M Maj, A Menegazzo, R Mengoni, D Merchan, E Million, B Morales, A I Napoli, D R Nociforo, C Nyberg, J Pietralla, N Pietri, S Podolyák, Zs Ponomarev, V Yu Pullia, A Quintana, B Rainovski, G Ralet, D Recchia, F Reese, M Regan, P Reiter, P Riboldi, S Rudolph, D Salsac, M D Sanchis, E Sarmiento, L G Schaffner, H Simpson, J Stezowski, O Valiente-Dobón, J J Wollersheim, H J |
| author_sort | Avigo, R |
| collection | CERN |
| description | The γ -ray emission from the nuclei $^{62,64}$Fe following Coulomb excitation at bombarding energy of 400-440 AMeV was measured with special focus on E 1 transitions in the energy region 4-8 MeV. The unstable neutron-rich nuclei $^{62,64}$Fe were produced at the FAIR-GSI laboratories and selected with the FRS spectrometer. The γ decay was detected with AGATA. From the measured γ -ray spectra the summed E 1 strength is extracted and compared to microscopic quasi-particle phonon model calculations. The trend of the E 1 strength with increasing neutron number is found to be fairly well reproduced with calculations that assume a rather complex structure of the 1$^−$ states (three-phonon states) inducing a strong fragmentation of the E 1 nuclear response below the neutron binding energy. |
| id | oai-inspirehep.net-1832599 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2020 |
| record_format | invenio |
| spelling | oai-inspirehep.net-18325992020-12-11T22:26:21Zdoi:10.1016/j.physletb.2020.135951http://cds.cern.ch/record/2746087engAvigo, RWieland, OBracco, ACamera, FAmeil, FArici, TAtaç, ABarrientos, DBazzacco, DBednarczyk, PBenzoni, GBirkenbach, BBlasi, NBoston, H CBottoni, SBrambilla, SBruyneel, BCiemała, MClément, ECortés, M LCrespi, F C LCullen, D MCurien, DDidierjean, FDomingo-Pardo, CDuchêne, GEberth, JGörgen, AGadea, AGerl, JGoel, NGolubev, PGonzález, VGórska, MGottardo, AGregor, EGuastalla, GHabermann, THarkness-Brennan, L JJungclaus, AKmiecik, MKojouharov, IKorten, WKurz, NLabiche, MLalović, NLeoni, SLettmann, MMaj, AMenegazzo, RMengoni, DMerchan, EMillion, BMorales, A INapoli, D RNociforo, CNyberg, JPietralla, NPietri, SPodolyák, ZsPonomarev, V YuPullia, AQuintana, BRainovski, GRalet, DRecchia, FReese, MRegan, PReiter, PRiboldi, SRudolph, DSalsac, M DSanchis, ESarmiento, L GSchaffner, HSimpson, JStezowski, OValiente-Dobón, J JWollersheim, H JLow-lying electric dipole $γ$-continuum for the unstable $^{62,64}$Fe nuclei: Strength evolution with neutron numberNuclear Physics - ExperimentThe γ -ray emission from the nuclei $^{62,64}$Fe following Coulomb excitation at bombarding energy of 400-440 AMeV was measured with special focus on E 1 transitions in the energy region 4-8 MeV. The unstable neutron-rich nuclei $^{62,64}$Fe were produced at the FAIR-GSI laboratories and selected with the FRS spectrometer. The γ decay was detected with AGATA. From the measured γ -ray spectra the summed E 1 strength is extracted and compared to microscopic quasi-particle phonon model calculations. The trend of the E 1 strength with increasing neutron number is found to be fairly well reproduced with calculations that assume a rather complex structure of the 1$^−$ states (three-phonon states) inducing a strong fragmentation of the E 1 nuclear response below the neutron binding energy.oai:inspirehep.net:18325992020 |
| spellingShingle | Nuclear Physics - Experiment Avigo, R Wieland, O Bracco, A Camera, F Ameil, F Arici, T Ataç, A Barrientos, D Bazzacco, D Bednarczyk, P Benzoni, G Birkenbach, B Blasi, N Boston, H C Bottoni, S Brambilla, S Bruyneel, B Ciemała, M Clément, E Cortés, M L Crespi, F C L Cullen, D M Curien, D Didierjean, F Domingo-Pardo, C Duchêne, G Eberth, J Görgen, A Gadea, A Gerl, J Goel, N Golubev, P González, V Górska, M Gottardo, A Gregor, E Guastalla, G Habermann, T Harkness-Brennan, L J Jungclaus, A Kmiecik, M Kojouharov, I Korten, W Kurz, N Labiche, M Lalović, N Leoni, S Lettmann, M Maj, A Menegazzo, R Mengoni, D Merchan, E Million, B Morales, A I Napoli, D R Nociforo, C Nyberg, J Pietralla, N Pietri, S Podolyák, Zs Ponomarev, V Yu Pullia, A Quintana, B Rainovski, G Ralet, D Recchia, F Reese, M Regan, P Reiter, P Riboldi, S Rudolph, D Salsac, M D Sanchis, E Sarmiento, L G Schaffner, H Simpson, J Stezowski, O Valiente-Dobón, J J Wollersheim, H J Low-lying electric dipole $γ$-continuum for the unstable $^{62,64}$Fe nuclei: Strength evolution with neutron number |
| title | Low-lying electric dipole $γ$-continuum for the unstable $^{62,64}$Fe nuclei: Strength evolution with neutron number |
| title_full | Low-lying electric dipole $γ$-continuum for the unstable $^{62,64}$Fe nuclei: Strength evolution with neutron number |
| title_fullStr | Low-lying electric dipole $γ$-continuum for the unstable $^{62,64}$Fe nuclei: Strength evolution with neutron number |
| title_full_unstemmed | Low-lying electric dipole $γ$-continuum for the unstable $^{62,64}$Fe nuclei: Strength evolution with neutron number |
| title_short | Low-lying electric dipole $γ$-continuum for the unstable $^{62,64}$Fe nuclei: Strength evolution with neutron number |
| title_sort | low-lying electric dipole $γ$-continuum for the unstable $^{62,64}$fe nuclei: strength evolution with neutron number |
| topic | Nuclear Physics - Experiment |
| url | https://dx.doi.org/10.1016/j.physletb.2020.135951 http://cds.cern.ch/record/2746087 |
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