Cargando…
Summit of the N=40 Island of Inversion: precision mass measurements and ab initio calculations of neutron-rich chromium isotopes
Mass measurements continue to provide invaluable information for elucidating nuclear structure and scenarios of astrophysical interest. The transition region between the <math altimg="si1.svg"><mi>Z</mi><mo linebreak="goodbreak" linebreakstyle="after&quo...
| Autores principales: | , , , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Lenguaje: | eng |
| Publicado: |
2022
|
| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1016/j.physletb.2022.137288 http://cds.cern.ch/record/2816411 |
| _version_ | 1780973585829986304 |
|---|---|
| author | Silwal, R. Andreoiu, C. Ashrafkhani, B. Bergmann, J. Brunner, T. Cardona, J. Dietrich, K. Dunling, E. Gwinner, G. Hockenbery, Z. Holt, J.D. Izzo, C. Jacobs, A. Javaji, A. Kootte, B. Lan, Y. Lunney, D. Lykiardopoulou, E.M. Miyagi, T. Mougeot, M. Mukul, I. Murbock, T. Porter, W.S. Reiter, M. Ringuette, J. Dilling, J. Kwiatkowski, A.A. |
| author_facet | Silwal, R. Andreoiu, C. Ashrafkhani, B. Bergmann, J. Brunner, T. Cardona, J. Dietrich, K. Dunling, E. Gwinner, G. Hockenbery, Z. Holt, J.D. Izzo, C. Jacobs, A. Javaji, A. Kootte, B. Lan, Y. Lunney, D. Lykiardopoulou, E.M. Miyagi, T. Mougeot, M. Mukul, I. Murbock, T. Porter, W.S. Reiter, M. Ringuette, J. Dilling, J. Kwiatkowski, A.A. |
| author_sort | Silwal, R. |
| collection | CERN |
| description | Mass measurements continue to provide invaluable information for elucidating nuclear structure and scenarios of astrophysical interest. The transition region between the <math altimg="si1.svg"><mi>Z</mi><mo linebreak="goodbreak" linebreakstyle="after">=</mo><mn>20</mn></math> and 28 proton shell closures is particularly interesting due to the onset and evolution of nuclear deformation as nuclei become more neutron-rich. This provides a critical testing ground for emerging ab-initio nuclear structure models. Here, we present high-precision mass measurements of neutron-rich chromium isotopes using the sensitive electrostatic Multiple-Reflection Time-Of-Flight Mass Spectrometer (MR-TOF-MS) at TRIUMF's Ion Trap for Atomic and Nuclear Science (TITAN) facility. Our high-precision mass measurements of <sup loc="post">59,61−63</sup>Cr confirm previous results, and the improved precision in measurements of <sup loc="post">64−65</sup>Cr refine the mass surface beyond N=40. With the ab initio in-medium similarity renormalization group, we examine the trends in collectivity in chromium isotopes and give a complete picture of the N=40 island of inversion from calcium to nickel. |
| id | cern-2816411 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2022 |
| record_format | invenio |
| spelling | cern-28164112023-08-10T10:33:56Zdoi:10.1016/j.physletb.2022.137288http://cds.cern.ch/record/2816411engSilwal, R.Andreoiu, C.Ashrafkhani, B.Bergmann, J.Brunner, T.Cardona, J.Dietrich, K.Dunling, E.Gwinner, G.Hockenbery, Z.Holt, J.D.Izzo, C.Jacobs, A.Javaji, A.Kootte, B.Lan, Y.Lunney, D.Lykiardopoulou, E.M.Miyagi, T.Mougeot, M.Mukul, I.Murbock, T.Porter, W.S.Reiter, M.Ringuette, J.Dilling, J.Kwiatkowski, A.A.Summit of the N=40 Island of Inversion: precision mass measurements and ab initio calculations of neutron-rich chromium isotopesnucl-thNuclear Physics - Theorynucl-exNuclear Physics - ExperimentMass measurements continue to provide invaluable information for elucidating nuclear structure and scenarios of astrophysical interest. The transition region between the <math altimg="si1.svg"><mi>Z</mi><mo linebreak="goodbreak" linebreakstyle="after">=</mo><mn>20</mn></math> and 28 proton shell closures is particularly interesting due to the onset and evolution of nuclear deformation as nuclei become more neutron-rich. This provides a critical testing ground for emerging ab-initio nuclear structure models. Here, we present high-precision mass measurements of neutron-rich chromium isotopes using the sensitive electrostatic Multiple-Reflection Time-Of-Flight Mass Spectrometer (MR-TOF-MS) at TRIUMF's Ion Trap for Atomic and Nuclear Science (TITAN) facility. Our high-precision mass measurements of <sup loc="post">59,61−63</sup>Cr confirm previous results, and the improved precision in measurements of <sup loc="post">64−65</sup>Cr refine the mass surface beyond N=40. With the ab initio in-medium similarity renormalization group, we examine the trends in collectivity in chromium isotopes and give a complete picture of the N=40 island of inversion from calcium to nickel.Mass measurements continue to provide invaluable information for elucidating nuclear structure and scenarios of astrophysical interest. The transition region between the $Z = 20$ and $28$ proton shell closures is particularly interesting due to the onset and evolution of nuclear deformation as nuclei become more neutron rich. This provides a critical testing ground for emerging ab-initio nuclear structure models. Here, we present high-precision mass measurements of neutron-rich chromium isotopes using the sensitive electrostatic Multiple-Reflection Time-Of-Flight Mass Spectrometer (MR-TOF-MS) at TRIUMF's Ion Trap for Atomic and Nuclear Science (TITAN) facility. Our high-precision mass measurements of $^{59, 61-63}$Cr confirm previous results, and the improved precision in measurements of $^{64-65}$Cr refine the mass surface beyond N=40. With the ab initio in-medium similarity renormalization group, we examine the trends in collectivity in chromium isotopes and give a complete picture of the N=40 island of inversion from calcium to nickel.arXiv:2204.09566oai:cds.cern.ch:28164112022-04-20 |
| spellingShingle | nucl-th Nuclear Physics - Theory nucl-ex Nuclear Physics - Experiment Silwal, R. Andreoiu, C. Ashrafkhani, B. Bergmann, J. Brunner, T. Cardona, J. Dietrich, K. Dunling, E. Gwinner, G. Hockenbery, Z. Holt, J.D. Izzo, C. Jacobs, A. Javaji, A. Kootte, B. Lan, Y. Lunney, D. Lykiardopoulou, E.M. Miyagi, T. Mougeot, M. Mukul, I. Murbock, T. Porter, W.S. Reiter, M. Ringuette, J. Dilling, J. Kwiatkowski, A.A. Summit of the N=40 Island of Inversion: precision mass measurements and ab initio calculations of neutron-rich chromium isotopes |
| title | Summit of the N=40 Island of Inversion: precision mass measurements and ab initio calculations of neutron-rich chromium isotopes |
| title_full | Summit of the N=40 Island of Inversion: precision mass measurements and ab initio calculations of neutron-rich chromium isotopes |
| title_fullStr | Summit of the N=40 Island of Inversion: precision mass measurements and ab initio calculations of neutron-rich chromium isotopes |
| title_full_unstemmed | Summit of the N=40 Island of Inversion: precision mass measurements and ab initio calculations of neutron-rich chromium isotopes |
| title_short | Summit of the N=40 Island of Inversion: precision mass measurements and ab initio calculations of neutron-rich chromium isotopes |
| title_sort | summit of the n=40 island of inversion: precision mass measurements and ab initio calculations of neutron-rich chromium isotopes |
| topic | nucl-th Nuclear Physics - Theory nucl-ex Nuclear Physics - Experiment |
| url | https://dx.doi.org/10.1016/j.physletb.2022.137288 http://cds.cern.ch/record/2816411 |
| work_keys_str_mv | AT silwalr summitofthen40islandofinversionprecisionmassmeasurementsandabinitiocalculationsofneutronrichchromiumisotopes AT andreoiuc summitofthen40islandofinversionprecisionmassmeasurementsandabinitiocalculationsofneutronrichchromiumisotopes AT ashrafkhanib summitofthen40islandofinversionprecisionmassmeasurementsandabinitiocalculationsofneutronrichchromiumisotopes AT bergmannj summitofthen40islandofinversionprecisionmassmeasurementsandabinitiocalculationsofneutronrichchromiumisotopes AT brunnert summitofthen40islandofinversionprecisionmassmeasurementsandabinitiocalculationsofneutronrichchromiumisotopes AT cardonaj summitofthen40islandofinversionprecisionmassmeasurementsandabinitiocalculationsofneutronrichchromiumisotopes AT dietrichk summitofthen40islandofinversionprecisionmassmeasurementsandabinitiocalculationsofneutronrichchromiumisotopes AT dunlinge summitofthen40islandofinversionprecisionmassmeasurementsandabinitiocalculationsofneutronrichchromiumisotopes AT gwinnerg summitofthen40islandofinversionprecisionmassmeasurementsandabinitiocalculationsofneutronrichchromiumisotopes AT hockenberyz summitofthen40islandofinversionprecisionmassmeasurementsandabinitiocalculationsofneutronrichchromiumisotopes AT holtjd summitofthen40islandofinversionprecisionmassmeasurementsandabinitiocalculationsofneutronrichchromiumisotopes AT izzoc summitofthen40islandofinversionprecisionmassmeasurementsandabinitiocalculationsofneutronrichchromiumisotopes AT jacobsa summitofthen40islandofinversionprecisionmassmeasurementsandabinitiocalculationsofneutronrichchromiumisotopes AT javajia summitofthen40islandofinversionprecisionmassmeasurementsandabinitiocalculationsofneutronrichchromiumisotopes AT kootteb summitofthen40islandofinversionprecisionmassmeasurementsandabinitiocalculationsofneutronrichchromiumisotopes AT lany summitofthen40islandofinversionprecisionmassmeasurementsandabinitiocalculationsofneutronrichchromiumisotopes AT lunneyd summitofthen40islandofinversionprecisionmassmeasurementsandabinitiocalculationsofneutronrichchromiumisotopes AT lykiardopoulouem summitofthen40islandofinversionprecisionmassmeasurementsandabinitiocalculationsofneutronrichchromiumisotopes AT miyagit summitofthen40islandofinversionprecisionmassmeasurementsandabinitiocalculationsofneutronrichchromiumisotopes AT mougeotm summitofthen40islandofinversionprecisionmassmeasurementsandabinitiocalculationsofneutronrichchromiumisotopes AT mukuli summitofthen40islandofinversionprecisionmassmeasurementsandabinitiocalculationsofneutronrichchromiumisotopes AT murbockt summitofthen40islandofinversionprecisionmassmeasurementsandabinitiocalculationsofneutronrichchromiumisotopes AT porterws summitofthen40islandofinversionprecisionmassmeasurementsandabinitiocalculationsofneutronrichchromiumisotopes AT reiterm summitofthen40islandofinversionprecisionmassmeasurementsandabinitiocalculationsofneutronrichchromiumisotopes AT ringuettej summitofthen40islandofinversionprecisionmassmeasurementsandabinitiocalculationsofneutronrichchromiumisotopes AT dillingj summitofthen40islandofinversionprecisionmassmeasurementsandabinitiocalculationsofneutronrichchromiumisotopes AT kwiatkowskiaa summitofthen40islandofinversionprecisionmassmeasurementsandabinitiocalculationsofneutronrichchromiumisotopes |