Breakdown of vibrational structure in Ru-98

Cakirli R. B., Casten R., McCutchan E., Ai H., Amro H., Babilon M., ...Daha Fazla

PHYSICAL REVIEW C, cilt.70, sa.4, 2004 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 70 Sayı: 4
  • Basım Tarihi: 2004
  • Doi Numarası: 10.1103/physrevc.70.044312
  • Dergi Adı: PHYSICAL REVIEW C
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • İstanbul Üniversitesi Adresli: Evet

Özet

The nucleus Ru-98, the lightest collective Ru isotope with N>50, has been studied employing the (alpha,2n) reaction using YRAST Ball detectors. The new data, as well as a systematic set of limits on the intensities of unobserved transitions, reveal a structure that resembles a near harmonic vibrator spectrum up through the two-phonon triplet but show an almost complete breakdown of vibrator structure thereafter. These results are not understood theoretically and are at variance with previous interpretations of this nucleus. A rare anomaly in yrast B(E2) values is also pointed out.