Excitation energy dependence of the giant dipole resonance in hot nuclei

K. Yoshida, J. Kasagi, H. Hama, M. Sakurai, M. Kodama, K. Furutaka, K. Ieki, W. Galster, T. Kubo, M. Ishihara

Research output: Contribution to journalArticlepeer-review

63 Citations (Scopus)


High energy γ-rays were measured with a large BaF2 detector in coincidence with fusion residues produced in the 92Mo+40Ar reactions at E A=21 and 26 MeV. The obtained γ-ray spectra were compared with statistical calculations for γ-ray transitions from highly excited nuclei. Contributions of bremsstrahlung in the early stages of the reaction were subtracted. The evolution of the GDR γ-ray yields and the shape of the γ-ray spectra are well reproduced by calculations in which the width of the GDR increases with the excitation energy.

Original languageEnglish
Pages (from-to)7-12
Number of pages6
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Issue number1
Publication statusPublished - 1990 Aug 2


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