One Proton Knockout from a Relativistic $^{45}$Cl Ion Beam

POSTER

Abstract

The single particle structure and behavior of $^{44}$S was analyzed through one-proton knockout conducted at the National Superconducting Cyclotron Laboratory at Michigan State University. A fast beam of $^{44}$S fragments was produced from the one-proton knockout reaction $^{9}$Be($^{45}$Cl, $^{44}$S)X. The excited $^{44}$S particles emitted gamma rays that were collected by the Segmented Germanium Array (SeGA). The measured gamma-ray spectrum of $^{44}$S was fitted with GEANT simulations of the gamma-ray response of SeGA in order to extract gamma-ray intensities. A proposal for the level scheme of $^{44}$S will be presented. Knockout cross sections were measured and the momentum distributions of the recoiling $^{44}$S nuclei were analyzed to determine the orbital angular momentum of the proton knocked out.

*This work was supported by the National Science Foundation under grant nos. PHY-0606007, PHY-0355129, and PHY-0653323.

Authors

  • K.E. Hosier

  • T.R. Baugher

  • L.A. Riley

    • Ursinus College

  • P.D. Cottle

  • K.W. Kemper

    • Florida State University

  • P. Adrich

  • D. Bazin

  • J.M. Cook

  • C.A. Diget

  • A. Gade

  • D.A. Garland

  • T. Glasmacher

  • A. Ratkiewicz

  • K.P. Siwek

  • D. Weissharr

    • National Superconducting Cyclotron Laboratory, Michigan State University