Continuum QRPA response for deformed neutron-rich nuclei
نویسندگان
چکیده
منابع مشابه
Continuum QRPA response for deformed neutron-rich nuclei
We discuss properties of the quadrupole collective excitation of the deformed neutronrich nucleus Mg within the framework of quasi-particle random phase approximation (QRPA). We first solve the coupled-channels equations to obtain the single-particle levels, and construct the ground state by treating the pairing correlations in the BCS approximation. We then solve the QRPA equation using the re...
متن کاملSkyrme-QRPA calculations for low-lying excitation modes in deformed neutron-rich nuclei
Low-frequency modes of excitation in deformed neutron-rich nuclei are studied by means of the quasiparticle random-phase approximation on the Skyrme-Hartree-Fock-Bogoliubov mean field. We investigate the microscopic structure of the soft Kπ = 0 modes systematically in neutron-rich Magnesium isotopes with N = 22, 24, 26 and 28 close to the drip line, and it is found that the strong collectivity ...
متن کاملHartree-fock-bogoliubov for Deformed Neutron-rich Nuclei
The two-basis method to solve the HFB for deformed nuclei in coordinate space is examined concerning the precision of the density tail. Small cutoff energies are shown to give rise to ripples in the tail, whose wave length corresponds to the cutoff momentum. More precise solutions require higher cutoff energies, which result in HFB matrices of larger dimensions. To circumvent the difficulty of ...
متن کاملLifetime measurements for neutron-rich nuclei around
Nowadays it has became clear that the magic numbers are not immutable and they can change as a function of the isospin, due to the influence of the residual interaction between valence orbitals [1]. Such a structural change in neutron-rich nuclei is verified in the appearance of the N = 32 subshell closure in nuclei located just above the doublymagic Ca and this can be inferred by different exp...
متن کاملResponse function beyond mean field of neutron - rich nuclei
The damping of single-particle and collective motion in exotic isotopes is a new topic and its study may shed light on basic problems of nuclear dynamics. For instance, it is known that nuclear structure calculations are not able, as a rule, to account completely for the empirical single-particle damping. In this contribution, we present calculations of the single-particle self-energy in the ca...
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: Nuclear Physics A
سال: 2004
ISSN: 0375-9474
DOI: 10.1016/s0375-9474(04)90028-0