Linear response of light deformed nuclei investigated by self-consistent quasiparticle random-phase approximation

TY - JOUR

T1 - Linear response of light deformed nuclei investigated by self-consistent quasiparticle random-phase approximation

AU - Losa, Cristina

AU - Pastore, A.

AU - Døssing, Thomas

AU - Vigezzi, E.

AU - Broglia, Ricardo Americo

PY - 2010/6/8

Y1 - 2010/6/8

N2 - We present a calculation of the properties of vibrational states in deformed, axially-symmetric even-even nuclei, within the framework of a fully self-consistent quasiparticle random phase approximation (QRPA). The same Skyrme energy density and density-dependent pairing functionals are used to calculate the mean field and the residual interaction in the particle-hole and particle-particle channels. We have tested our software in the case of spherical nuclei against fully self-consistent calculations published in the literature, finding excellent agreement. We investigate the consequences of neglecting the spin-orbit and Coulomb residual interactions in QRPA. Furthermore we discuss the improvement obtained in the QRPA result associated with the removal of spurious modes. Isoscalar and isovector responses in the deformed Mg24-26, Mg34 isotopes are presented and compared to experimental findings.

AB - We present a calculation of the properties of vibrational states in deformed, axially-symmetric even-even nuclei, within the framework of a fully self-consistent quasiparticle random phase approximation (QRPA). The same Skyrme energy density and density-dependent pairing functionals are used to calculate the mean field and the residual interaction in the particle-hole and particle-particle channels. We have tested our software in the case of spherical nuclei against fully self-consistent calculations published in the literature, finding excellent agreement. We investigate the consequences of neglecting the spin-orbit and Coulomb residual interactions in QRPA. Furthermore we discuss the improvement obtained in the QRPA result associated with the removal of spurious modes. Isoscalar and isovector responses in the deformed Mg24-26, Mg34 isotopes are presented and compared to experimental findings.

U2 - 10.1103/physrevc.81.064307

DO - 10.1103/physrevc.81.064307

M3 - Journal article

SN - 2469-9985

VL - 81

SP - 064307

JO - Physical Review C

JF - Physical Review C

IS - 6

ER -