Reaction plane determination for sup 36 Ar+ sup 197 Au collisions at E / A =35 MeV

Journal Article · Fri Nov 01 04:00:00 EST 1991 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.44.2065· OSTI ID:5099334

Tsang, M B; de Souza, R T; Kim, Y D; Bowman, D R; Carlin, N; Gelbke, C K; Gong, W G; Lynch, W G; Phair, L; Zhu, F ^[1]

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1. National Superconducting Cyclotron Laboratory and Department of Physics Astronomy, Michigan State University, East Lansing, Michigan (USA)

Collisions between {sup 36}Ar projectile and {sup 197}Au target nuclei at {ital E}/{ital A}=35 MeV have been studied with a 4{pi} phoswich array with a low detection threshold. Azimuthal distributions of light-charged particles and intermediate-mass fragments are extracted with respect to reaction planes determined from fission fragments or from the emission patterns of coincident light particles and intermediate-mass fragments. The internal consistency and sensitivity to particle detection thresholds are explored for the various techniques of reaction plane determination. For the present reaction, the reaction plane can be determined with comparable accuracy from the distribution of fission fragments as from the orientation of the major axis of the transverse momentum tensor constructed from the emitted light particles and intermediate-mass fragments. Monte Carlo calculations are performed illustrating the sensitivity of the transverse momentum tensor method to the azimuthal anisotropy of the single-particle distributions and the convergence of this method as a function of particle multiplicity. The extraction of experimental uncertainties in the determination of the reaction plane is discussed.

• OSTI ID: 5099334
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 44:5; ISSN 0556-2813; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

651920* -- Nuclear Properties & Reactions
A=190-219
Experimental
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
ARGON 36 REACTIONS
CHARGED-PARTICLE REACTIONS
DISTRIBUTION
ENERGY RANGE
FISSION
FISSION FRAGMENTS
GEV RANGE
GEV RANGE 01-10
GOLD 197 TARGET
HEAVY ION REACTIONS
IMPACT PARAMETER
NUCLEAR FRAGMENTATION
NUCLEAR FRAGMENTS
NUCLEAR REACTIONS
TARGETS