This title appears in the Scientific Report :
2009
Please use the identifier:
http://dx.doi.org/10.1103/PhysRevC.79.034309 in citations.
Please use the identifier: http://hdl.handle.net/2128/10452 in citations.
Description of the Giant Monopole Resonance in the Even-A Sn-112 - Sn-124 Isotopes within the Microscopic Model Including Quasiparticle-Phonon Coupling.
Description of the Giant Monopole Resonance in the Even-A Sn-112 - Sn-124 Isotopes within the Microscopic Model Including Quasiparticle-Phonon Coupling.
We have calculated the strength distributions of the isoscalar giant monopole resonance (ISGMR) in the even-A tin isotopes (A=112-124) that were recently measured in inelastic alpha scattering. The calculations were performed within two microscopic models: the quasiparticle random phase approximatio...
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Personal Name(s): | Avdeenkov, A |
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GrÜmmer, F. / Kamerdzhiev, S. / Krewald, S. / Litvinova, E. / Lyutorovich, N. / Speth, J. / Tselyaev, V. | |
Contributing Institute: |
Theorie der starken Wechselwirkung; IKP-3 |
Published in: | Physical Review C Physical review / C, 79 79 (2009 2009) 3 3, S. 034309 034309 |
Imprint: |
Woodbury, NY
Inst.
2009
2009-03-10 2009-03-01 |
Physical Description: |
034309 |
DOI: |
10.1103/PhysRevC.79.034309 |
Document Type: |
Journal Article |
Research Program: |
Physik der Hadronen und Kerne |
Series Title: |
Physical Review C
79 |
Subject (ZB): | |
Link: |
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Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/10452 in citations.
We have calculated the strength distributions of the isoscalar giant monopole resonance (ISGMR) in the even-A tin isotopes (A=112-124) that were recently measured in inelastic alpha scattering. The calculations were performed within two microscopic models: the quasiparticle random phase approximation (QRPA) and the quasiparticle time blocking approximation (QTBA), which is an extension of the QRPA including quasiparticle-phonon coupling. We used a self-consistent calculational scheme based on the Hartree-Fock+Bardeen-Cooper-Schrieffer approximation. Within the RPA the self-consistency is full. The single-particle continuum is also exactly included at the RPA level. The self-consistent mean field and the effective interaction are derived from the Skyrme energy functional. In the calculations, two Skyrme force parametrizations were used: T5 with a comparatively low value of the incompressibility modulus of infinite nuclear matter (K-infinity=202 MeV) and T6 with K-infinity=236 MeV. The T5 parametrization gives theoretical results for tin isotopes in good agreement with the experimental data including the resonance widths. The results of the ISGMR calculations in Zr-90, Sm-144, and Pb-208 performed with these Skyrme forces are discussed and compared with the experiment. |