Nuclear structure towards N=40 Ca 60: In-Beam γ-ray spectroscopy of Ti 58,60

  • A. Gade
  • , R. V.F. Janssens
  • , D. Weisshaar
  • , B. A. Brown
  • , E. Lunderberg
  • , M. Albers
  • , V. M. Bader
  • , T. Baugher
  • , D. Bazin
  • , J. S. Berryman
  • , C. M. Campbell
  • , M. P. Carpenter
  • , C. J. Chiara
  • , H. L. Crawford
  • , M. Cromaz
  • , U. Garg
  • , C. R. Hoffman
  • , F. G. Kondev
  • , C. Langer
  • , T. Lauritsen
  • I. Y. Lee, S. M. Lenzi, J. T. Matta, F. Nowacki, F. Recchia, K. Sieja, S. R. Stroberg, J. A. Tostevin, S. J. Williams, K. Wimmer, S. Zhu

Research output: Contribution to journalArticlepeer-review

41 Scopus citations

Abstract

Excited states in the neutron-rich N=38, 36 nuclei Ti60 and Ti58 were populated in nucleon-removal reactions from V61 projectiles at 90MeV/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, Ti58,60 provide some of the most neutron-rich benchmarks accessible today for calculations attempting to determine the structure of the potentially doubly magic nucleus Ca60.

Original languageEnglish
Article number112503
JournalPhysical Review Letters
Volume112
Issue number11
DOIs
StatePublished - Mar 21 2014
Externally publishedYes

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