Single-neutron structure near the $N=28$ nucleus $^{45}$Cl has been studied via the one-neutron removal reaction $^{9}$Be($^{45}$Cl,$^{44}$Cl)X. Three gamma-rays de-exciting states in $^{44}$Cl have been observed. A proposed level scheme is presented. The angular momentum of the neutron removed has been extracted from measured parallel momentum distributions of the beam-like reaction product. A comparison of measured cross sections with shell-model spectroscopic factors highlights the selectivity of the one-nucleon knockout reaction.
*This work was supported by NSF Grant Nos. PHY-0355129, PHY-0653323, and PHY-0606007.
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Authors
L.A. Riley
Department of Physics and Astronomy, Ursinus College
B.A. Hartl
Department of Physics and Astronomy, Ursinus College
K.E. Hosier
Department of Physics and Astronomy, Ursinus College
D.C. Stoken
Department of Physics and Astronomy, Ursinus College
P.D. Cottle
Department of Physics, Florida State University
K.W. Kemper
Department of Physics, Florida State University
P. Adrich
National Superconducting Cyclotron Laboratory, Michigan State University
T.R. Baugher
National Superconducting Cyclotron Laboratory, Michigan State University
D. Bazin
National Superconducting Cyclotron Laboratory, Michigan State University
J.M. Cook
National Superconducting Cyclotron Laboratory, Michigan State University
C. Aa. Diget
National Superconducting Cyclotron Laboratory, Michigan State University
A. Gade
National Superconducting Cyclotron Laboratory, Michigan State University
D.A. Garland
National Superconducting Cyclotron Laboratory, Michigan State University
T. Glasmacher
National Superconducting Cyclotron Laboratory, Michigan State University
A. Ratkiewicz
National Superconducting Cyclotron Laboratory, Michigan State University
K.P. Siwek
National Superconducting Cyclotron Laboratory, Michigan State University
D. Weisshaar
National Superconducting Cyclotron Laboratory, Michigan State University
