6533b7dafe1ef96bd126ecfe
RESEARCH PRODUCT
Evidence for thermal equilibration in multifragmentation reactions probed with bremsstrahlung photons
Dg D'enterriaL AphecetcheA ChbihiH DelagrangeJ DiazM J Van GoethemM HoefmanA KuglerH LöhnerG MartinezMj MoraR OrtegaRw OstendorfS SchadmandY SchutzR H SiemssenD StracenerP TlustyR TurrisiM VolkertsV WagnerHw WilschutN YahlaliD. D' Enterriasubject
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 physicsdescription
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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2001-07-09 |