Fine Structure of the E1 Response in 140Ce Below the Particle Threshold*
Fine Structure of the E1 Response in 140Ce Below the Particle Threshold*
Herzberg, R.-D.; von Brentano, P.; Eberth, J.; Enders, J.; Fischer, R.; Huxel, N.; Klemme, T.; von Neumann-Cosel, P.; Nicolay, N.; Pietralla, N.; Ponomarev, V. Y.; Reif, J.; Richter, A.; Schlegel, C.; Schwengner, R.; Skoda, S.; Thomas, H. G.; Wiedenhöver, I.; Winter, G.; Zilges, A.
The E1 response of the semi-magic nucleus 140Ce below the particle
threshold was measured in a (gamma, gamma') experiment utilizing the new
Euroball Cluster detector at the S-DALINAC. While the energy averaged data
are in good agreement with the tagged photon results, here they are resolved
for the first time into 54 individual transitions. A quasiparticle-phonon
model calculation including up to three-phonon configurations compares
well to the extracted strength distribution. The interference between one-
and two-phonon contributions is essential for a quantitative reproduction.
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Physics Letters B 390 (1997) 49-54
DOI: 10.1016/S0370-2693(96)01374-3
Cited 88 times in Scopus
Permalink: https://www.hzdr.de/publications/Publ-1011
