Abstract
A systematic description of the evolution of the giant dipole resonance (GDR) at non-zero temperature T is presented within the Phonon Damping Model (PDM). The damping of the GDR is caused by coupling to all ph, pp and hh configurations at T ≠ 0, where the coupling to pp and hh configurations is responsible for the increase and saturation of the GDR width as a function of T. The results of numerical calculations for the GDR width, the strength function and the integrated yield of γ rays in 120Sn and 208Pb at 0 ≤ T ≤ 6 MeV are obtained in a reasonable agreement with the most recent experimental data.
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