γrays from peripheral and central collisions in the reactionGd at 44 MeV/nucleon
- 23 February 1987
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 58 (8) , 759-762
- https://doi.org/10.1103/physrevlett.58.759
Abstract
Inclusive and exclusive γ-ray spectra have been measured in the reaction at 44 MeV/nucleon. Impact-parameter selection has been provided by various coincidence conditions with a forward-angle particle detector. The γ yield for >25 MeV is consistent with emission from the nucleon-nucleon system and decreases strongly for larger impact parameters. Below 25 MeV, the photons originate from statistical decay of the excited fragments with a strength function dominated by giant resonances. The observed γ yields provide information on the excitation energies of the reaction products.
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