Relativistic RPA for isobaric analogue and Gamow–Teller resonances in closed shell nuclei
نویسندگان
چکیده
منابع مشابه
Relativistic 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 کاملRelativistic RPA plus phonon-coupling analysis of pygmy dipole resonances
The relativistic random-phase approximation (RRPA) plus phonon-coupling (PC) model is applied in the analysis of E1 strength distributions in 208Pb and 132Sn, for which data on pygmy dipole resonances (PDR) have recently been reported. The covariant response theory is fully consistent: the effective nuclear interaction NL3 is used both to determine the spectrum of single-nucleon Dirac states, a...
متن کاملLong-Range Correlations in Closed Shell Nuclei
The effects of correlations on the bulk properties of nuclei are investigated in large model spaces including up to 21 single-particle orbits. The evaluation of the single-particle Green function is made feasible by means of the BAGEL approximation. The spectral function for single-nucleon pick-up and removal is investigated for the nuclei 16O and 40Ca. Special attention is paid to the effects ...
متن کاملGiant resonances in exotic spherical nuclei within the RPA approach with the Gogny force
Theoretical results for giant resonances in the three doubly magic exotic nuclei Ni, Sn and Sn are obtained from Hartree-Fock (HF) plus Random Phase Approximation (RPA) calculations using the D1S parametrization of the Gogny two-body effective interaction. Special attention is paid to full consistency between the HF field and the RPA particle-hole residual interaction. The results for the exoti...
متن کاملFirst Test of the Isobaric Multiplet Mass Equation in fp-Shell Nuclei
Y.H. Zhang, H. S. Xu, Yu. A. Litvinov, X. L. Tu, X. L. Yan, S. Typel, K. Blaum, M. Wang, X. H. Zhou, Y. Sun, B. A. Brown, Y. J. Yuan, J.W. Xia, J. C. Yang, G. Audi, X. C. Chen, G. B. Jia, Z. G. Hu, X.W. Ma, R. S. Mao, B. Mei, P. Shuai, Z. Y. Sun, S. T. Wang, G.Q. Xiao, X. Xu, T. Yamaguchi, Y. Yamaguchi, Y. D. Zang, H.W. Zhao, T. C. Zhao, W. Zhang, and W. L. Zhan Institute of Modern Physics, Chi...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physics Letters B
سال: 1998
ISSN: 0370-2693
DOI: 10.1016/s0370-2693(98)01373-2