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Fine structure of the E1 response in 140Ce below the particle threshold
- Source :
- Physics Letters B. 390:49-54
- Publication Year :
- 1997
- Publisher :
- Elsevier BV, 1997.
-
Abstract
- The E1 response of the semi-magic nucleus 140Ce below the particle threshold was measured in a (γ,γ′) 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 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.
Details
- ISSN :
- 03702693
- Volume :
- 390
- Database :
- OpenAIRE
- Journal :
- Physics Letters B
- Accession number :
- edsair.doi...........d3b2db250501ac5b7c79a51424b74a6b