Nuclear structure towards N = 40 60Ca: in-beam γ-ray spectroscopy of 58,60Ti.
Excited states in the neutron-rich N = 38, 36 nuclei (60)Ti and (58)Ti were populated in nucleon-removal reactions from (61)V projectiles at 90 MeV/nucleon. The γ-ray transitions from such states in these Ti isotopes were detected with the advanced γ-ray tracking array GRETINA and were corrected event by event for large Doppler shifts (v/c ∼ 0.4) using the γ-ray interaction points deduced from online signal decomposition. The new data indicate that a steep decrease in quadrupole collectivity occurs when moving from neutron-rich N = 36, 38 Fe and Cr toward the Ti and Ca isotones. In fact, (58,60)Ti provide some of the most neutron-rich benchmarks accessible today for calculations attempting to determine the structure of the potentially doubly magic nucleus (60)Ca.
National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA and Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA.
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A
Gade
Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA.
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Janssens
National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA.
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Weisshaar
National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA and Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA.
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Brown
National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA and Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA.
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Lunderberg
Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA.
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Albers
National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA and Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA.
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Bader
National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA and Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA.
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Baugher
National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA.
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Bazin
National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA.
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Berryman
Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.
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Campbell
Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA.
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Carpenter
Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA and Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, USA.
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Chiara
Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.
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Crawford
Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.
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Cromaz
Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556, USA.
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Garg
Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA.
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Hoffman
Nuclear Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, USA.
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Kondev
National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA and Joint Institute for Nuclear Astrophysics, Michigan State University, East Lansing, Michigan 48824, USA.
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Langer
Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA.
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Lauritsen
Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.
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Lee
Dipartimento di Fisica e Astronomia dell'Università and INFN, Sezione di Padova, I-35131 Padova, Italy.
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Lenzi
Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556, USA.
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Matta
IPHC, IN2P3-CNRS et Université de Strasbourg, F-67037 Strasbourg, France.
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Nowacki
National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA.
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Recchia
IPHC, IN2P3-CNRS et Université de Strasbourg, F-67037 Strasbourg, France.
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Sieja
National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA and Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA.
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Stroberg
Department of Physics, Faculty of Engineering and Physical Sciences, University of Surrey, Guildford GU2 7XH, United Kingdom.
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Tostevin
National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA.
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Williams
National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA and Department of Physics, Central Michigan University, Mt. Pleasant, Michigan 48859, USA.
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Wimmer
Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA.
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Zhu