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Cold breakup of spectator residues in nucleus-nucleus collisions at high energy

Journal Article · · Phys. Rev. C; (United States)
; ;
Inclusive data from fragmentation reactions of the type A/sub P/+A/sub T/..-->..Z+X are analyzed and a reaction mechanism is proposed. A projectile A/sub P/ (p, He, ..cap alpha.., or Ne) collides with a target nucleus A/sub T/ (Au) and one fragment with charge Z and energy E is observed at a solid angle ..cap omega... Projectile energies vary between 84A MeV and several A GeV. We propose a parametrization for the triple differential cross section d/sup 3/sigma/d..cap omega.. dE dZ with six free parameters. The parametrization generalizes the two-vector model which is often used to describe spallation products in proton-nucleus collisions. By fitting data from various experiments we establish a systematics of the six parameters. The experimental values of the parameters can be quantitatively understood in a model where the target nucleus breaks into several fragments similar to the shattering of glass.
Research Organization:
Institut fuer Theoretische Physik der Universitat Heidelberg, D-6900 Heidelberg, Federal Republic of Germany and Max-Planck-Institut fuer Kernphysik, D-6900 Heidelberg, Federal Republic of Germany
OSTI ID:
6257578
Journal Information:
Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 30:1; ISSN PRVCA
Country of Publication:
United States
Language:
English

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Related Subjects

651915* -- Nuclear Properties & Reactions
A=190-219
Theoretical-- Nuclear Reactions & Scattering-- (-1987)
653003 -- Nuclear Theory-- Nuclear Reactions & Scattering
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA REACTIONS
BARYON REACTIONS
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DIFFERENTIAL CROSS SECTIONS
ELEMENTS
ENERGY RANGE
FLUIDS
FRAGMENTATION
GASES
GEV RANGE
GEV RANGE 01-10
GEV RANGE 10-100
GOLD 197 TARGET
HADRON REACTIONS
HEAVY ION REACTIONS
HELIUM
HELIUM 3 REACTIONS
INCLUSIVE INTERACTIONS
INTERACTIONS
MEV RANGE
MEV RANGE 100-1000
NEON
NEON 20 REACTIONS
NONMETALS
NUCLEAR REACTIONS
NUCLEON REACTIONS
OXYGEN
PARTICLE INTERACTIONS
PROTON REACTIONS
RARE GASES
SPALLATION
TARGETS