Search results for "Thermal equilibration"

showing 2 items of 2 documents

Evidence for thermal equilibration in multifragmentation reactions probed with bremsstrahlung photons

2001

The production of nuclear bremsstrahlung photons (E$_{\gamma}>$ 30 MeV) has been studied in inclusive and exclusive measurements in four heavy-ion reactions at 60{\it A} MeV. The measured photon spectra, angular distributions and multiplicities indicate that a significant part of the hard-photons are emitted in secondary nucleon-nucleon collisions from a thermally equilibrated system. The observation of the thermal component in multi-fragment $^{36}$Ar+$^{197}$Au reactions suggests that the breakup of the thermalized source produced in this system occurs on a rather long time-scale.

TAPSPhoton25.70.Pq 13.75.Cs 21.65.+fNuclear TheoryGeneral Physics and AstronomyFOS: Physical sciences[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]HEAVY-ION COLLISIONS01 natural sciencesSpectral lineNuclear physics0103 physical sciencesThermalThermal equilibrationPARTICLESNuclear Experiment (nucl-ex)010306 general physicsNuclear ExperimentNuclear ExperimentComputingMilieux_MISCELLANEOUSNUCLEAR-MATTERPhysicsHOT010308 nuclear & particles physicsBremsstrahlungBreakupPhoton spectraNuclear matter3. Good healthAtomic physics
researchProduct

Low-pT pion enhancement from partial thermalization in nuclear collisions

1991

Abstract We attribute the enhancement of pions measured at low transverse momenta and central rapidities in 200 A GeV nucleus-nucleus collisions to the partial thermal equilibration of a superdense pion fluid. Transport theory calculations are compared to recent S+S and O+Au data, and predictions are made for Pb+Pb.

Nuclear physicsPhysicsNuclear and High Energy PhysicsTransverse planePionThermalisationNuclear TheoryThermal equilibrationHigh Energy Physics::ExperimentTransport theoryNuclear ExperimentPhysics Letters B
researchProduct