6533b820fe1ef96bd1279106
RESEARCH PRODUCT
Fragment Flow and the Multifragmentation Phase Space
L. G. SobotkaW. SeidelC. WilliamsG. ImmeM. NeumannW. G. LynchWolfgang MüllerB. ZwieglinskiE. ZudeC. K. GelbkeT. MöhlenkampM. L. Begemann-blaichGiuseppe VerdeU. LynenD. R. BowmanV. SerflingA. FerreroM. MangTh. BlaichA. TucholskiL. StuttgeW. C. HsiG. J. KundeA. SchüttaufS. TomasevicH. SannW. D. KunzeB. OckerI. IoriGraham F. PeasleeA. WörnerR. J. CharityJ. StrothM. A. LisaA. CosmoM. B. TsangC. A. OgilvieJ. PochodzallaG. RacitiJ. HubeleT. RubehnW. TrautmannA. MoroniV. LindenstruthP. Kreutzsubject
Nuclear reactionCoalescence (physics)PhysicsSpectrometer[PHYS.NEXP] Physics [physics]/Nuclear Experiment [nucl-ex]Computer Science::Information RetrievalGeneral Physics and AstronomyPosition and momentum space[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]Space (mathematics)Nuclear physicsPhase spaceMultiplicity (chemistry)Atomic physicsNuclear ExperimentNucleondescription
Fragment distributions have been measured for Au+Au collisions at [ital E]/[ital A]=100 and 1000 MeV. A high detection efficiency for fragments was obtained by combining the ALADIN spectrometer and the MSU-Miniball/WU-Miniwall array. At both energies the maximum multiplicity of intermediate mass fragments (IMF) normalized to the size of the decaying system is about one IMF per 30 nucleons but the element distributions show significant differences. Within a coalescence picture the suppression of heavy fragments in central collisions at [ital E]/[ital A]=100 MeV may be related to a reduction of the density in momentum space which is caused by the collective expansion.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1995-01-02 | Physical Review Letters |