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Toward the limit of nuclear binding on the N=Z line: Spectroscopy of Cd 96

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Author(s)

  • J. Park
  • H. Grawe
  • R. Gernhäuser
  • R. Krücken
  • F. Nowacki
  • D. S. Ahn
  • F. Ameil
  • H. Baba
  • T. Bäck
  • B. Blank
  • A. Blazhev
  • P. Boutachkov
  • F. Browne
  • I. Čeliković
  • M. Dewald
  • P. Doornenbal
  • T. Faestermann
  • Y. Fang
  • G. De France
  • N. Fukuda
  • A. Gengelbach
  • J. Gerl
  • J. Giovinazzo
  • S. Go
  • N. Goel
  • M. Górska
  • E. Gregor
  • H. Hotaka
  • S. Ilieva
  • N. Inabe
  • T. Isobe
  • J. Jolie
  • H. S. Jung
  • A. Jungclaus
  • D. Kameda
  • G. D. Kim
  • Y. K. Kim
  • I. Kojouharov
  • T. Kubo
  • N. Kurz
  • M. Lewitowicz
  • G. Lorusso
  • D. Lubos
  • L. Maier
  • E. Merchan
  • K. Moschner
  • D. Murai
  • F. Naqvi
  • H. Nishibata
  • D. Nishimura
  • S. Nishimura
  • I. Nishizuka
  • Z. Patel
  • N. Pietralla
  • M. M. Rajabali
  • H. Sakurai
  • H. Schaffner
  • Y. Shimizu
  • L. F. Sinclair
  • P. A. Söderström
  • K. Steiger
  • T. Sumikama
  • H. Suzuki
  • H. Takeda
  • J. Taprogge
  • P. Thöle
  • S. Valder
  • Z. Wang
  • N. Warr
  • H. Watanabe
  • V. Werner
  • Z. Y. Xu
  • A. Yagi
  • K. Yoshinaga
  • Y. Zhu

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Publication details

JournalPhysical Review C
DateAccepted/In press - 27 Dec 2018
DatePublished (current) - 11 Feb 2019
Issue number2
Volume99
Number of pages6
Original languageEnglish

Abstract

A γ-decaying isomeric state (τ1/2=197-17+19 ns) has been identified in Cd96, which is one α particle away from the last known bound N=Z nucleus, Sn100. Comparison of the results with shell-model calculations has allowed a tentative experimental level scheme to be deduced and the isomer to be interpreted as a medium-spin negative-parity spin trap based on the coupling of isoscalar (T=0) and isovector (T=1) neutron-proton pairs. The data also suggest evidence for the population of a 9+ T=1 state, which is predicted by shell-model calculations to be yrast. Such a low-lying T=1 state, which is unknown in lighter mass even-even self-conjugate nuclei, can also be interpreted in terms of the coupling of T=0 and T=1 neutron-proton pairs.

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