ISOSCALAR DIPOLE RESPONSE IN 92Mo AND 100Mo ISOTOPES

Isoscalar dipole mode in relativistic random phase approximation

The isoscalar giant dipole resonance structure in Pb is calculated in the framework of a fully consistent relativistic random phase approximation, based on effective mean-field Lagrangians with nonlinear meson self-interaction terms. The results are compared with recent experimental data and with calculations performed in the HartreeFock plus RPA framework. Two basic isoscalar dipole modes are ...

EVIDENCE FOR THE ISOSCALAR GIANT DIPOLE RESONANCE IN 208Pb

Isoscalar Giant Dipole Resonance and Nuclear Matter Incompressibility Coefficient

Studies of compression modes of nuclei are of particular interest since their strength distributions, S(E), are sensitive to the value of the nuclear matter incompressibility coefficient, K [1]. At present, Hartree-Fock (HF) based random-phase-approximation(RPA) calculations for the isoscalar giant monopole resonance (ISGMR) reproduce the experimental data for effective interactions associated ...

Configuration Mixing Effects in Isoscalar Giant Dipole Resonance

Based on an explicit verification of the coupling matrix elements between the 1p1h and 2p2h states we propose a new method of selecting the most important 2p2h states responsible for fragmentation effects. In this way the dimensionality of the problem is reduced, such that the computation becomes feasible and the spreading of the strength is realistic, as verified by some tests of convergence. ...

The isoscalar giant dipole resonance: Where we stand?

The current status of the isoscalar giant dipole resonance (ISGDR) is reviewed. Over the past few years, experiments done with small-angle alpha scattering have provided the best evidence yet for this resonance and the experimental ISGDR strength distributions are reasonably well established in a number of nuclei. The implications of the experimental observations on the determination of the nuc...