Nature of the pygmy resonance in continuous gamma spectra

Voinov A., Schiller A., Algin E., Bernstein L., Garrett P., Guttormsen M., ...More

PHYSICS OF ATOMIC NUCLEI, vol.67, no.10, pp.1866-1872, 2004 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 67 Issue: 10
  • Publication Date: 2004
  • Doi Number: 10.1134/1.1811192
  • Title of Journal : PHYSICS OF ATOMIC NUCLEI
  • Page Numbers: pp.1866-1872


Two-step-cascade spectra of the Yb-171(n, gammagamma)Yb-172 reaction have been measured using thermal neutrons. They are compared to calculations based on experimental values of the level density and radiative strength function obtained from the Yb-173(He-3, alphagamma)Yb-172 reaction. The multipolarity of a 6.5(15) mu(N)(2) resonance at 3.3(1) MeV in the strength function is determined to be M1 by this comparison. (C) 2004 MAIK "Nauka/Interperiodica".