Few-nucleon transfer in quasi-elastic collisions at 20 MeV/nucleon

Journal Article · Wed Jan 01 00:00:00 EST 1986 · Phys. Rev. C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.33.185· OSTI ID:6277395

Utsunomiya, H; Deci, E C; Blue, R A; Harwood, L H; Ronningen, R M; Siwek-Wilczynska, K; Wilczynski, J; Morrissey, D J

We report measurements of the isotopic distributions of targetlike fragments in coincidence with nitrogen, carbon, and boron isotopes from the reaction of 20 MeV/nucleon UN with WVHo and WUDy. The binary nature of the reaction was studied by observing particle-el-ray coincidences; projectilelike fragments were identified near the classical grazing angle with a telescope consisting of silicon surface barrier detectors, and the targetlike fragments were identified by observing their discrete deexcitation el rays in either of two high purity germanium detectors. The following reactions were studied: WUDy( UN,chixn), WUDy( UN,chi xn), WVHo( UN,Cxn), WVHo( UN,C xn), where chi = nitrogen or boron isotopes. The inclusive energy spectra of the projectilelike fragments are reasonably described by either the extended Serber or the Friedman model of projectile breakup. Such interpretations of the reaction mechanism were further tested by comparing the targetlike fragment isotopic distributions to those expected from transfer of the unobserved breakup fragment to the target followed by statistical decay. The agreement of the predicted targetlike fragment isotopic distributions with the present data is remarkably good.

• Research Organization: National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824
• OSTI ID: 6277395
• Journal Information: Phys. Rev. C; (United States), Vol. 33:1
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
DYSPROSIUM 164 TARGET
NITROGEN 14 REACTIONS
HOLMIUM 165 TARGET
QUASI-ELASTIC SCATTERING
TRANSFER REACTIONS
BORON ISOTOPES
CARBON ISOTOPES
COINCIDENCE SPECTROMETRY
CROSS SECTIONS
ENERGY SPECTRA
EVAPORATION MODEL
EXCLUSIVE INTERACTIONS
FRAGMENTATION
GAMMA RADIATION
INCLUSIVE INTERACTIONS
KINETIC ENERGY
MEV RANGE 100-1000
MSU CYCLOTRONS
NITROGEN ISOTOPES
STATISTICAL MODELS
ACCELERATORS
CHARGED-PARTICLE REACTIONS
CYCLIC ACCELERATORS
CYCLOTRONS
DIRECT REACTIONS
ELECTROMAGNETIC RADIATION
ENERGY
ENERGY RANGE
HEAVY ION REACTIONS
INTERACTIONS
IONIZING RADIATIONS
ISOCHRONOUS CYCLOTRONS
ISOTOPES
MATHEMATICAL MODELS
MEV RANGE
NUCLEAR MODELS
NUCLEAR REACTIONS
PARTICLE INTERACTIONS
QUASI-FREE REACTIONS
RADIATIONS
SCATTERING
SPECTRA
TARGETS
651825* - Nuclear Properties & Reactions
A=150-189
Experimental- Nuclear Reactions & Scattering- (-1987)