Journal Article

GSI-2022-00932

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Investigating nuclear structure near N = 32 and N = 34 : Precision mass measurements of neutron-rich Ca, Ti, and V isotopes

Porter, W. S. (Corresponding author) ; Dunling, E. ; Leistenschneider, E. ; Bergmann, J. ; Bollen, G. ; Dickel, T.GSI* ; Dietrich, K. A. ; Hamaker, A. ; Hockenbery, Z. ; Izzo, C. ; Jacobs, A. ; Javaji, A. ; Kootte, B. ; Lan, Y. ; Miskun, I. ; Mukul, I. ; Murböck, T. ; Paul, S. F. ; Plaß, W.GSI* ; Puentes, D. ; Redshaw, M. ; Reiter, M. P. ; Ringle, R. ; Ringuette, J. ; Sandler, R. ; Scheidenberger, C.GSI* ; Silwal, R. ; Simpson, R. ; Sumithrarachchi, C. S. ; Teigelhöfer, A. ; Valverde, A. A. ; Weil, R. ; Yandow, I. T. ; Dilling, J. ; Kwiatkowski, A. A.

2022
Inst. Woodbury, NY

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Please use a persistent id in citations: doi:10.1103/PhysRevC.106.024312

Report No.: arXiv:2206.15329

Abstract: Nuclear mass measurements of isotopes are key to improving our understanding of nuclear structure across the chart of nuclides, in particular, for the determination of the appearance or disappearance of nuclear shell closures. We present high-precision mass measurements of neutron-rich Ca, Ti, and V isotopes performed at TRIUMF's Ion Trap for Atomic and Nuclear science (TITAN) and the Low Energy Beam and Ion Trap (LEBIT) facilities. These measurements were made using the TITAN multiple-reflection time-of-flight mass spectrometer (MR-ToF-MS) and the LEBIT 9.4T Penning trap mass spectrometer. In total, 13 masses were measured, 8 of which represent increases in precision over previous measurements. These measurements refine trends in the mass surface around N=32 and N=34, and support the disappearance of the N=32 shell closure with increasing proton number. Additionally, our data do not support the presence of a shell closure at N=34.

Note: ISSN 2469-9993 not unique: **2 hits**.This work was supported by the Natural Sciences and Engineering Research Council (NSERC) of Canada under Grants No. SAPIN-2018-00027, No. RGPAS-2018-522453, and No. SAPPJ-2018-00028, the National Research Council (NRC) of Canada through TRIUMF, the U.S. National Science Foundation through Grants No. PHY-1565546, No. PHY-2111185, and No. PHY-1811855, the U.S. Department of Energy, Office of Science under Grants No. DE-FG02-93ER40789 and No. DE-SC0015927, the German Research Foundation (DFG), Grant No. SCHE 1969/2-1, the German Federal Ministry for Education and Research (BMBF), Grants No. 05P19RGFN1 and No. 05P21RGFN1, and the Hessian Ministry for Science and Art through the LOEWE Center HICforFAIR, by the JLU and GSI under the JLU-GSI strategic Helmholtz partnership agreement. E.D. acknowledges financial support from the U.K.-Canada Foundation.

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Contributing Institute(s):

1. FRS / SFRS Experimente (FRS)
2. Helmholtz ForschAkad Hess. f. FAIR, HFHF (FHF)

Research Program(s):

1. 612 - Cosmic Matter in the Laboratory (POF4-612) (POF4-612)
2. HIC4FAIR - HIC for FAIR - Helmholtz International Center for FAIR - Data Analysis, Theory and Simulations (LandHessen-LOEWE-HIC4FAIR) (LandHessen-LOEWE-HIC4FAIR)
3. SUC-GSI-Giessen - Strategic university cooperation GSI-U Gießen (SUC-GSI-GI) (SUC-GSI-GI)
4. Nuclear structure physics and nuclear astrophysics - Experiment (HFHF project) (I:(DE-Ds200)HFHF-NuAstro-Exp) (I:(DE-Ds200)HFHF-NuAstro-Exp)

Experiment(s):

1. External experiment at external facility/ no experiment at GSI (other)

Appears in the scientific report 2022

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Database coverage:
; Clarivate Analytics Master Journal List ; Current Contents - Electronics and Telecommunications Collection ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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