Structure of As-68 studied via the C-12(Ni-58,pn) reaction

D Sohler, Z Dombradi, S Brant, Joakim Cederkäll, M Lipoglavsek, M Palacz, V Paar, J Persson, A Atac, C Fahlander, H Grawe, A Johnson, A Kerek, W Klamra, J Kownacki, A Likar, LO Norlin, J Nyberg, R Schubart, D SeweryniakG de Angelis, P Bednarczyk, D Foltescu, D Jerrestam, S Juutinen, E Makela, BM Nyako, M de Poli, HA Roth, T Shizuma, O Skeppstedt, G Sletten, S Tormanen

Research output: Contribution to journalArticlepeer-review

Abstract

Excited states of As-68 nucleus were populated through the C-12(Ni-58,pn) reaction and investigated by in-beam gamma-spectroscopic methods. The NORDBALL detector array equipped with charged particle and neutron detectors was used to detect the evaporated particles and gamma-rays. The level scheme of As-68 was constructed on the basis of gamma gamma-coincidence relations up to 6 MeV excitation energy and J(pi) = (15(+)). The structure of the nucleus is discussed in the framework of the interacting boson-fermion-fermion model. The states below 2.3 MeV are described as members of proton-neutron-phonon multiplets. (C) 1998 Elsevier Science B.V.
Original languageEnglish
Pages (from-to)141-161
JournalNuclear Physics, Section A
Volume644
Issue number3
DOIs
Publication statusPublished - 1998
Externally publishedYes

Subject classification (UKÄ)

  • Subatomic Physics

Free keywords

  • 15 Ge+BGO anti-Compton spectrometers
  • enriched targets
  • pi
  • J
  • As-68 deduced levels
  • angular distribution ratios
  • particle coin
  • gamma gamma
  • I gamma
  • measured E gamma
  • pn)
  • C-12(Ni-58
  • E = 261 MeV
  • 30 BaF2
  • detectors
  • 21 element 4 pi Si charged particle detector array
  • 11
  • element 1 pi neutron wall
  • interacting boson-fermion-fermion model
  • calculations

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