Shell model method for Gamow-Teller transitions in heavy, deformed nuclei
نویسندگان
چکیده
منابع مشابه
Centroids of Gamow-Teller transitions at finite temperature in fp-shell neutron-rich nuclei
The temperature dependence of the energy centroids and strength distributions for Gamow-Teller (GT) 1+ excitations in several fp-shell nuclei is studied. The quasiparticle random phase approximations (QRPA) is extended to describe GT states at finite temperature. A shift to lower energies of the GT+ strength is found, as compared to values obtained at zero temperature. Typeset using REVTEX ∗Ema...
متن کاملGamow-Teller strength distributions in fp-shell nuclei
P. B. Radha,* D. J. Dean, S. E. Koonin, K. Langanke, and P. Vogel W. K. Kellogg Radiation Laboratory, California Institute of Technology, Pasadena, California 91125 Physics Division, Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37381 Institut for Physics and Astronomy, University of Aarhus, DK-8000 Aarhus C, Denmark Division of Physics, Mathematics and Astronomy, Californi...
متن کاملA / I ? + Gamow - Teller strength in nuclei
The distribution of p+ Gamow-Teller strength in 26Mg, 54Fe and 56Ni is calculated in the QRPA and large-basis shell-model spaces. The quenching relative to the simplest jj coupled model found in the QRPA is similar to that found in a shell-model basis which includes 2p2h ground-state correlations within the major shell (sd or pf). For 26Mg there is significant additional quenching found in the ...
متن کاملRelativistic RPA for Isobaric Analogue and Gamow-Teller Resonances in Closed Shell Nuclei
We perform a selfconsistent relativistic RPA calculation for the isobaric analogue and Gamow-Teller resonances based on relativistic mean field theory results for the ground states of Ca, Zr and Pb. We use the parameter set NL1 for the σ, ω and ρ mesons, and experimental values for the pion and nucleon. An extra parameter, related to the intensity of the contact term in the pion-exchange intera...
متن کاملGamow-Teller strength distributions for nuclei in presupernova stellar cores.
Electron-capture and β-decay of nuclei in the core of massive stars play an important role in the stages leading to a type II supernova explosion. Nuclei in the f-p shell are particularly important for these reactions in the post Siliconburning stage of a presupernova star. In this paper, we characterise the energy distribution of the Gamow-Teller Giant Resonance (GTGR) for midfp-shell nuclei i...
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ژورنال
عنوان ژورنال: Physical Review C
سال: 2006
ISSN: 0556-2813,1089-490X
DOI: 10.1103/physrevc.74.054303