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机译:
Rutgers State Univ, Dept Phys & Astron, New Brunswick, NJ 08901 USA;
Oak Ridge Natl Lab, Phys Div, Oak Ridge, TN 37831 USA;
Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USAUniv Notre Dame, Dept Phys, Notre Dame, IN 46556 USANatl Superconducting Cyclotron Lab, E Lansing, MI 48824 USAUniv Tennessee, Dept Phys, Knoxville, TN 37996 USATennessee Technol Univ, Dept Phys, Cookeville, TN 38505 USAJapan Atom Energy Agcy, Tokai, Ibaraki 3191195, Japan;