Preequilibrium emission observed in the correlation between light particles and evaporation residues for the {sup 84}Kr+{sup 27}Al system

Journal Article · Sun Aug 01 04:00:00 EDT 1999 · Physical Review, C

DOI:https://doi.org/10.1103/PhysRevC.60.021601· OSTI ID:357327

Gomez del Campo, J; Shapira, D; McConnell, J; Gross, C J; Madani, H ^[1]; Gross, C J ^[2]; Stracener, D W ^[3]; Chavez, E; Ortiz, M E ^[4]

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1. Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States)
2. Oak Ridge Institute for Science and Education, Oak Ridge, Tennessee 37831 (United States)
3. University of Tennessee, Knoxville, Tennessee 37996 (United States)
4. Instituto de Fisica Universidad Nacional Autonoma de Mexico, Mexico 01000 Distrito Federal (Mexico)

Evaporation residues (ER) of Z=34{endash}42 were measured in coincidence with emitted protons, deuterons, tritons, and {alpha} particles for the reaction {sup 84}Kr+{sup 27}Al at a {sup 84}Kr bombarding energy of 1260 MeV. Our study demonstrates the presence of a strong preequilibrium component in the reaction yield. The assumption of a forward center-of-mass angular distribution for the emission of energetic protons and {alpha}, following full momentum transfer, gives the best description of the observed experimental data. This description differs substantially from the one provided by prevailing models of incomplete fusion.

• OSTI ID: 357327
• Journal Information: Physical Review, C, Journal Name: Physical Review, C Journal Issue: 2 Vol. 60; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ALPHA PARTICLES
ALUMINIUM 27
DEUTERONS
EVAPORATION
HEAVY ION FUSION REACTIONS
KRYPTON 84
PROTONS
TRITONS