High-energy ~,-rays from the decay of the giant-dipole resonance (GDR) in the hot l~Sn compound nucleus and its daughters were measured in coincidence with heavy recoiling evaporation residues. The compound nucleus was formed at excitation energy E\* = 80 MeV using the reaction 56Ni+4STi at a bombar
Exclusive studies of the GDR in excited nuclei
β Scribed by V. Nanal; B.B. Back; D.J. Hofman; G. Hackman; D. Ackermann; S. Fischer; D. Henderson; R.V.F. Janssens; T.L. Khoo; A.A. Sonzogni; Y. Alhassid
- Publisher
- Elsevier Science
- Year
- 1999
- Tongue
- English
- Weight
- 201 KB
- Volume
- 649
- Category
- Article
- ISSN
- 0375-9474
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β¦ Synopsis
The GDR in 164Er at 62 MeV excitation energy has been studied in coincidence with the evaporation residues, selected using the Argonne fragment mass analyzer (FMA). The statistical model fit to the data indicate that 164Er* has a prolate shape with deformation similar to the ground state.
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Gamma-rays, charged particles and evaporation residue products from lso+1°°Mo collisions at E(lso)=125 to 217 MeV have been measured in order to understand better the width evolution of the GDR in hot nuclei. Detailed angular distributions of all reaction products are used to determine important pre
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