Giant Resonances based on Unitarily Transformed Two-Nucleon plus Phenomenological Three-Nucleon Interactions - IN2P3 - Institut national de physique nucléaire et de physique des particules Access content directly
Journal Articles Journal of Physics G Nuclear Physics Year : 2013

Giant Resonances based on Unitarily Transformed Two-Nucleon plus Phenomenological Three-Nucleon Interactions

A. Günther
  • Function : Author
R. Roth
  • Function : Author

Abstract

We investigate giant resonances of spherical nuclei on the basis of the Argonne V18 potential after unitary transformation within the Similarity Renormalization Group or the Unitary Correlation Operator Method supplemented by a phenomenological three-body contact interaction. Such Hamiltonians can provide a good description of ground-state energies and radii within Hartree-Fock plus low-order many-body perturbation theory. The standard Random Phase Approximation is applied here to calculate the isoscalar monopole, isovector dipole, and isoscalar quadrupole excitation modes of the 40Ca, 90Zr, and 208Pb nuclei. Thanks to the inclusion of the three-nucleon interaction and despite the minimal optimization effort, a reasonable agreement with experimental centroid energies of all three modes has been achieved.

Dates and versions

in2p3-00827377 , version 1 (29-05-2013)

Identifiers

Cite

A. Günther, P. Papakonstantinou, R. Roth. Giant Resonances based on Unitarily Transformed Two-Nucleon plus Phenomenological Three-Nucleon Interactions. Journal of Physics G Nuclear Physics, 2013, 41, pp.115107. ⟨10.1088/0954-3899/41/11/115107⟩. ⟨in2p3-00827377⟩
30 View
0 Download

Altmetric

Share

Gmail Facebook X LinkedIn More