FINE-STRUCTURE OF THE E1 RESPONSE IN CE-140 BELOW THE PARTICLE THRESHOLD

Authors
HERZBERG RD VONBRENTANO P EBERTH J ENDERS J FISCHER R HUXEL N KLEMME T VONNEUMANNCOSEL P NICOLAY N PIETRALLA N PONOMAREV VY REIF J RICHTER A SCHLEGEL C SCHWENGNER R SKODA S THOMAS HG WIEDENHOVER I WINTER G ZILGES A
Citation
Rd. Herzberg et al., FINE-STRUCTURE OF THE E1 RESPONSE IN CE-140 BELOW THE PARTICLE THRESHOLD, Physics letters. Section B, 390(1-4), 1997, pp. 49-54
Citations number
33
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
390
Issue
1-4
Year of publication
1997
Pages
49 - 54
Database
ISI
SICI code
0370-2693(1997)390:1-4<49:FOTERI>2.0.ZU;2-N
Abstract
The E1 response of the semi-magic nucleus Ce-140 below the particle th reshold 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 tagged photon results, here they are r esolved for the first time into 54 individual transitions. A quasipart icle-phonon model calculation including up to three-phonon configurati ons compares well to the extracted strength distribution. The interfer ence between one- and two-phonon contributions is essential for a quan titative reproduction.