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

*Corresponding author for this work

Research output: Contribution to journalArticle

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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 languageEnglish (US)
Article number024310
JournalPhysical Review C
Volume98
Issue number2
DOIs
StatePublished - Aug 15 2018

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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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), [024310]. https://doi.org/10.1103/PhysRevC.98.024310