6533b871fe1ef96bd12d117a

RESEARCH PRODUCT

High temperature giant dipole and isoscalar resonances

Jesús NavarroManuel BarrancoFrancesca GarciasE. Suraud

subject

PhysicsNuclear and High Energy PhysicsDipole[PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th]010308 nuclear & particles physicsQuantum electrodynamicsIsoscalar0103 physical sciencesSemiclassical physicsResonanceNuclear fusion010306 general physics01 natural sciences

description

We present a systematic study of the Giant Dipole Resonance (GDR) at high temperatures (T≧4 MeV) in the framework of a semiclassical approximation that uses them1 andm3 RPA sum rules to estimate the GDR mean energy. We focus on the evolution withT of the collective nature of the GDR and of theL=0, 2, 3 and 4 isoscalar resonances. We find that the GDR remains particularly collective at highT, suggesting that it might be possible to observe it experimentally even at temperatures close to the maximum one a nucleus can sustain.

https://doi.org/10.1007/bf01289692