Nature of the pygmy resonance in continuous gamma spectra

Voinov, AV; Schiller, A; Algin, E; Bernstein, LA; Garrett, PE; Guttormsen, M; Nelson, RO; Rekstad, J; Siem, S

doi:10.1134/1.1811192

Nature of the pygmy resonance in continuous gamma spectra

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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 (SCI-Expanded)

Publication Type: Article / Article
Volume: 67 Issue: 10
Publication Date: 2004
Doi Number: 10.1134/1.1811192
Journal Name: PHYSICS OF ATOMIC NUCLEI
Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
Page Numbers: pp.1866-1872
Eskisehir Osmangazi University Affiliated: No

Abstract

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".