Observation of a Low-Lying Neutron Unbound State in 25F

POSTER

Abstract

A low energy neutron unbound state of $^{25}$F has been observed. The $^{25}$F isotopes were produced by one-proton removal from an 86 MeV/u $^{26}$Ne beam on a Beryllium target at the fast-fragmentation radioactive beam facility of the National Superconducting Cyclotron Laboratory at Michigan State University. The subsequent decay of the $^{25}$F isotopes resulted in $^{24}$F and neutrons that were detected in coincidence. The properties of the charged particles and neutrons were used to reconstruct a decay energy spectrum for $^{25}$F, which was compared to simulations. The simulations include a stripping reaction model, decay energy line-shapes, and, detector resolutions and acceptances. Results and simulation details will be discussed.

Authors

  • R. Howes

    • Marquette University

  • A.R. Smith

    • Illinois Wesleyan University

  • M. Kasperczyk

    • Illinois Wesleyan University

  • N. Frank

    • Illinois Wesleyan

  • T. Baumann

    • Michigan State University

  • D. Bazin

    • Michigan State University

  • B.A. Brown

    • Michigan State University

  • J. Brown

    • Wabash College

  • P.A. DeYoung

    • Hope College

  • J.E. Finck

    • Central Michigan University

  • A. Gade

    • Michigan State University

  • J. Hinnefeld

    • Indiana University at South Bend

  • J.-L. Lecouey

    • Michigan State University

  • B. Luther

    • Concordia College

  • W.A. Peters

    • Michigan State University

  • H. Scheit

    • Michigan State University

  • A. Schiller

    • Michigan State University

  • M. Thoennessen

    • Michigan State University

  • J. Tostevin

    • University of Surrey