Quenching of the N=32 neutron shell closure studied via precision mass measurements of neutron-rich vanadium isotopes

M. P. Reiter; S. Ayet San Andrés; E. Dunling; B. Kootte; E. Leistenschneider; C. Andreoiu; C. Babcock; B. R. Barquest; J. Bollig; T. Brunner; I. Dillmann; A. Finlay; G. Gwinner; L. Graham; J. D. Holt; C. Hornung; C. Jesch; R. Klawitter; Y. Lan; D. Lascar; J. E. McKay; S. F. Paul; R. Steinbrügge; R. Thompson; J. L. Tracy; M. E. Wieser; C. Will; T. Dickel; W. R. Plaß; C. Scheidenberger; A. A. Kwiatkowski; J. Dilling

doi:10.1103/PhysRevC.98.024310

Quenching of the N=32 neutron shell closure studied via precision mass measurements of neutron-rich vanadium isotopes

M. P. Reiter, S. Ayet San Andrés, E. Dunling, B. Kootte, E. Leistenschneider, C. Andreoiu, C. Babcock, B. R. Barquest, J. Bollig, T. Brunner, I. Dillmann, A. Finlay, G. Gwinner, L. Graham, J. D. Holt, C. Hornung, C. Jesch, R. Klawitter, Y. Lan, D. LascarJ. E. McKay, S. F. Paul, R. Steinbrügge, R. Thompson, J. L. Tracy, M. E. Wieser, C. Will, T. Dickel, W. R. Plaß, C. Scheidenberger, A. A. Kwiatkowski, J. Dilling

Neutron Sciences Directorate

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29 Scopus citations

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
Article number	024310
Journal	Physical Review C
Volume	98
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevC.98.024310
State	Published - Aug 15 2018

Funding

We would like to thank C. Barbieri, H. Hergert, P. Navr\u00E1til, A. Schwenk, J. Simonis, V. Som\u00E0, 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 J\u00FClich 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.

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Reiter, M. P., Ayet San Andrés, S., Dunling, E., Kootte, B., Leistenschneider, E., Andreoiu, C., Babcock, C., Barquest, B. R., Bollig, J., Brunner, T., Dillmann, I., Finlay, A., Gwinner, G., Graham, L., Holt, J. D., Hornung, C., Jesch, C., Klawitter, R., Lan, Y., ... Dilling, J. (2018). Quenching of the N=32 neutron shell closure studied via precision mass measurements of neutron-rich vanadium isotopes. Physical Review C, 98(2), Article 024310. https://doi.org/10.1103/PhysRevC.98.024310

@article{c08b8dc9efdc4b209f52c9aaa35515ba,

title = "Quenching of the N=32 neutron shell closure studied via precision mass measurements of neutron-rich vanadium isotopes",

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.",

author = "Reiter, {M. P.} and {Ayet San Andr{\'e}s}, S. and E. Dunling and B. Kootte and E. Leistenschneider and C. Andreoiu and C. Babcock and Barquest, {B. R.} and J. Bollig and T. Brunner and I. Dillmann and A. Finlay and G. Gwinner and L. Graham and Holt, {J. D.} and C. Hornung and C. Jesch and R. Klawitter and Y. Lan and D. Lascar and McKay, {J. E.} and Paul, {S. F.} and R. Steinbr{\"u}gge and R. Thompson and Tracy, {J. L.} and Wieser, {M. E.} and C. Will and T. Dickel and Pla{\ss}, {W. R.} and C. Scheidenberger and Kwiatkowski, {A. A.} and J. Dilling",

note = "Publisher Copyright: {\textcopyright} 2018 American Physical Society.",

year = "2018",

month = aug,

day = "15",

doi = "10.1103/PhysRevC.98.024310",

language = "English",

volume = "98",

journal = "Physical Review C",

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Reiter, MP, Ayet San Andrés, S, Dunling, E, Kootte, B, Leistenschneider, E, Andreoiu, C, Babcock, C, Barquest, BR, Bollig, J, Brunner, T, Dillmann, I, Finlay, A, Gwinner, G, Graham, L, Holt, JD, Hornung, C, Jesch, C, Klawitter, R, Lan, Y, Lascar, D, McKay, JE, Paul, SF, Steinbrügge, R, Thompson, R, Tracy, JL, Wieser, ME, Will, C, Dickel, T, Plaß, WR, Scheidenberger, C, Kwiatkowski, AA & Dilling, J 2018, 'Quenching of the N=32 neutron shell closure studied via precision mass measurements of neutron-rich vanadium isotopes', Physical Review C, vol. 98, no. 2, 024310. https://doi.org/10.1103/PhysRevC.98.024310

TY - JOUR

T1 - Quenching of the N=32 neutron shell closure studied via precision mass measurements of neutron-rich vanadium isotopes

AU - Reiter, M. P.

AU - Ayet San Andrés, S.

AU - Dunling, E.

AU - Kootte, B.

AU - Leistenschneider, E.

AU - Andreoiu, C.

AU - Babcock, C.

AU - Barquest, B. R.

AU - Bollig, J.

AU - Brunner, T.

AU - Dillmann, I.

AU - Finlay, A.

AU - Gwinner, G.

AU - Graham, L.

AU - Holt, J. D.

AU - Hornung, C.

AU - Jesch, C.

AU - Klawitter, R.

AU - Lan, Y.

AU - Lascar, D.

AU - McKay, J. E.

AU - Paul, S. F.

AU - Steinbrügge, R.

AU - Thompson, R.

AU - Tracy, J. L.

AU - Wieser, M. E.

AU - Will, C.

AU - Dickel, T.

AU - Plaß, W. R.

AU - Scheidenberger, C.

AU - Kwiatkowski, A. A.

AU - Dilling, J.

PY - 2018/8/15

Y1 - 2018/8/15

N2 - 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.

AB - 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.

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U2 - 10.1103/PhysRevC.98.024310

DO - 10.1103/PhysRevC.98.024310

M3 - Article

AN - SCOPUS:85051763465

SN - 2469-9985

VL - 98

JO - Physical Review C

JF - Physical Review C

IS - 2

M1 - 024310

ER -

Quenching of the N=32 neutron shell closure studied via precision mass measurements of neutron-rich vanadium isotopes

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