Reaction Dynamics of Heavy Ion Collisions Studied by Hard Photon Emission
作者： V. Metag
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摘要: The role of photons as a probe heavy ion reaction dynamics is discussed. Experimental data on the systems 16O + W and 92Mo illustrate that hard render time differential information evolution collisions ranging from proton — neutron bremsstrahlung in initial phase to thermal emission highly excited products last stage reaction. Measured photon multiplicities provide addition new approach determine impact parameter collisions. A systematics probabilities reveals nucleonic Fermi motion collision zone. Prospects for future experiments focussing neutral meson production at relativistic bombarding energies are outlined. Untersuchungen der Reaktionsdynamik von Schwerionenreaktionen uber die Emission hochenergetischer Photonen Die Bedeutung Photonen als Sonden fur Schwerionenstosen wird diskutiert. Experimentelle Daten zu den Systemen und zeigen, das Proton-Neutron Bremsstrahlung aus Anfangsphase bis zur thermischen hochangeregten Reaktionsprodukten Endphase Reaktion Aussagen zum zeitlichen Ablauf ermoglichen. Gemessene Photonenmultiplizitaten bieten zusatzlich ein neues Verfahren Bestimmung des Stosparameters Schwerionenreaktionen. Eine Systematik Photonenemissionswahrscheinlichkeiten verdeutlicht, Photonendaten auf Impulsverteilung Nukleonen Reaktionszone geschlossen werden kann. Abschliesend Perspektiven zukunftige Experimente neue physikalische Fragestellungen bei relativistischen dargelegt.
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