Abstract
We performed the first direct mass measurements of neutron-rich vanadium V52-55 isotopes passing the N=32 neutron shell closure with TRIUMF's Ion Trap for Atomic and Nuclear science. The new direct measurements confirm all previous indirect results. Through a reduced uncertainty of the mass of V55 we confirm the quenching of the N=32 neutron shell closure in vanadium. We discuss the evolution of the N=32 neutron shell closure between K and Cr and show similar signatures in the half-life surface when studied along the isotopic chains.
Original language | English |
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Article number | 024310 |
Journal | Physical Review C |
Volume | 98 |
Issue number | 2 |
DOIs | |
State | Published - Aug 15 2018 |
Externally published | Yes |
Funding
We would like to thank C. Barbieri, H. Hergert, P. Navrátil, A. Schwenk, J. Simonis, V. Somà, S. R. Stroberg for fruitful discussions and for helping with understanding the evolution of the shell closure, F. Ames, P. Kunz, J. Lassen, R. Li, M. Mostamand, B. E. Schulz, and A. Teigelhoefer for spectroscopy at the ISAC Yield Station, and H. L. Crawford for her input towards the spectroscopy of Ti. This work is supported partially by Canadian agencies NSERC and CFI, U.S.A. NSF (Grants No. PHY-1419765 and No. PHY-1614130) and DOE (Grant No. DE-SC0017649), Brazil's CNPq (Grant No. 249121/2013-1), United Kingdom's STFC (Grants No. ST/L005743/1 and No. ST/P005314/1), German institutions DFG (Grants No. FR 601/3-1 and No. SFB1245 and through PRISMACluster of Excellence), BMBF (Grants No. 05P15RDFN1 and No. 05P12RGFN8), the Helmholtz Association through NAVI (Grant No. VH-VI-417), HMWK through the LOEWE Center HICforFAIR, and the JLU-GSI partnership. Computations were performed with resources of the Jülich Supercomputing Center (JURECA), GENCI-TGCC (Grant No. 2017-0507392), MSUs iCER and UKs DiRAC Complexity system (Grants No. ST/K000373/1 and No. ST/K0003259/1). TRIUMF receives federal funding via NRC-CNRC.
Funders | Funder number |
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Canadian agencies NSERC | |
GENCI-TGCC | 2017-0507392, ST/K0003259/1, ST/K000373/1 |
HMWK | |
JLU-GSI | |
JURECA | |
Jülich Supercomputing Center | |
National Science Foundation | PHY-1419765, PHY-1614130 |
National Science Foundation | |
U.S. Department of Energy | DE-SC0017649 |
U.S. Department of Energy | |
Canada Foundation for Innovation | |
Science and Technology Facilities Council | ST/L005743/1, ST/P005314/1 |
Science and Technology Facilities Council | |
Deutsche Forschungsgemeinschaft | SFB1245, FR 601/3-1 |
Deutsche Forschungsgemeinschaft | |
Bundesministerium für Bildung und Forschung | 05P12RGFN8, 05P15RDFN1 |
Bundesministerium für Bildung und Forschung | |
Conselho Nacional de Desenvolvimento Científico e Tecnológico | 249121/2013-1 |
Conselho Nacional de Desenvolvimento Científico e Tecnológico | |
Helmholtz Association | VH-VI-417 |
Helmholtz Association |