Ground-state electromagnetic moments of calcium isotopes
Author
Poves Paredes, AlfredoEntity
UAM. Departamento de Física TeóricaPublisher
American Physical SocietyDate
2015-04-30Citation
10.1103/PhysRevC.91.041304
Physical Review C 91.4 (2015): 041304
ISSN
1089-490X (online); 0556-2813 (print)DOI
10.1103/PhysRevC.91.041304Funded by
This work was supported by the IAP-project P7/12, the GOA grant 15/010 KU Leuven, NSF Grant No. PHY-1068217, the BMBF Contracts No. 05P12RDCIC and No. 06DA70471, the Max-Planck Society, the EU FP7 via ENSAR No. 262010, the DFG through Grant No. SFB 634, ERC Grant No. 307986 STRONGINT, the Helmholtz Alliance HA216/EMMI, and MINECO (SPAIN) (FPA2011-29854). Computations were performed on JUROPA at the Julich Supercomputing Center. We would like to thank the ISOLDE technical group for their support and assistance. International Research Fellowship of the Japan Society for the Promotion of Science (JSPS) and JSPS KAKENHI Grant No. 26.04323Project
info:eu-repo/grantAgreement/EC/FP7/262010; Gobierno de España. FPA2011-29854; info:eu-repo/grantAgreement/EC/FP7/307986Editor's Version
http://dx.doi.org/10.1103/PhysRevC.91.041304Subjects
FísicaNote
Artículo escrito por un elevado número de autores, solo se referencian el que aparece en primer lugar, el nombre del grupo de colaboración, si le hubiere, y los autores pertenecientes a la UAMRights
© Published by the American Physical SocietyAbstract
Background: The neutron-rich calcium isotopes have gained particular interest as evidence of closed-shell structures has recently been found in two exotic nuclei, at N=32 and N=34. Additionally, the study of such neutron-rich systems has revealed new aspects of nuclear forces, in particular regarding the role of three-nucleon forces. Purpose: We study the electromagnetic properties of Ca isotopes around the neutron number N=32. Methods: High-resolution bunched-beam collinear laser spectroscopy was used to measure the optical hyperfine spectra of the Ca43-51 isotopes. Results: The ground-state magnetic moments of Ca49,51 and quadrupole moments of Ca47,49,51 were measured for the first time, and the Ca51 ground-state spin I=3/2 was determined in a model-independent way. Our experimental results are compared with state-of-the-art shell-model calculations using both phenomenological interactions and microscopic interactions derived from chiral effective field theory. Conclusions: The results for the ground-state moments of neutron-rich isotopes are in excellent agreement with predictions of interactions derived from chiral effective field theory including three-nucleon forces. Lighter isotopes illustrate the presence of particle-hole excitations of the Ca40 core in their ground state. Our results provide a critical test of modern nuclear theories, and give direct answer to the evolution of ground-state electromagnetic properties in the Ca isotopic chain across three doubly closed-shell configurations at N=20, 28, 32 of this unique system
Files in this item
Google Scholar:Poves Paredes, Alfredo
This item appears in the following Collection(s)
Related items
Showing items related by title, author, creator and subject.
-
High-precision quadrupole moment reveals significant intruder component in 13 33Al20 ground state
Heylen, H.; De Rydt, M.; Neyens, G.; Bissell, M. L.; Caceres, L.; Chevrier, R.; Daugas, J. M.; Ichikawa, Y.; Ishibashi, Y.; Kamalou, O.; Mertzimekis, T. J.; Morel, P.; Papuga, J.; Poves Paredes, Alfredo; Rajabali, M. M.; Stödel, C.; Thomas, J. C.; Ueno, H.; Utsuno, Y.; Yoshida, N.; Yoshimi, A.
2016-09-12 -
Spectroscopy of odd-mass cobalt isotopes toward the N=40 subshell closure and shell-model description of spherical and deformed states
Recchia, F.; Lenzi, S. M.; Lunardi, S.; Farnea, E.; Gadea, A.; Mǎrginean, N.; Napoli, D. R.; Nowacki, Frédéric; Poves Paredes, Alfredo; Valiente-Dobón, J. J.; Axiotis, M.; Aydin, S.; Bazzacco, D.; Benzoni, G.; Bizzeti, P. G.; Bizzeti-Sona, A. M.; Bracco, A.; Bucurescu, D.; Caurier, E.; Corradi, L.; De Angelis, G.; Della Vedova, F.; Fioretto, E.; Gottardo, A.; Ionescu-Bujor, M.; Iordachescu, A.; Leoni, S.; Mǎrginean, R.; Mason, P.; Menegazzo, R.; Mengoni, D.; Million, B.; Montagnoli, G.; Orlandi, R.; Pollarolo, G.; Sahin, E.; Scarlassara, F.; Singh, R. P.; Stefanini, A. M.; Szilner, S.; Ur, C. A.; Wieland, O.
2012-06-06 -
Quadrupole collectivity in neutron-rich Fe and Cr isotopes
Crawford, H. L.; Clark, R. M.; Fallon, P.; Macchiavelli, A. O.; Baugher, T.; Bazin, D.; Beausang, C. W.; Berryman, J. S.; Bleuel, D. L.; Campbell, C. M.; Cromaz, M.; De Angelis, G.; Gade, A.; Hughes, R. O.; Lee, I. Y.; Lenzi, S. M.; Nowacki, Frédéric; Paschalis, S.; Petri, M.; Poves Paredes, Alfredo; Ratkiewicz, A.; Ross, T. J.; Sahin, E.; Weisshaar, D.; Wimmer, K.; Winkler, R.
2013-06-13