Abstract
AbstractThe role of photons as a probe of heavy ion reaction dynamics is discussed. Experimental data on the systems 16O + W and 92Mo + 92Mo illustrate that hard photons render a time differential information on the evolution of heavy ion collisions ranging from proton — neutron bremsstrahlung in the initial phase to thermal emission from highly excited reaction products in the last stage of the reaction. Measured hard photon multiplicities provide in addition a new approach to determine the impact parameter of heavy ion collisions. A systematics of hard photon emission probabilities reveals the role of the nucleonic Fermi motion in the collision zone. Prospects for future experiments focussing on photon and neutral meson production at relativistic bombarding energies are outlined.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
