P. Sapienza et al., EVIDENCE FOR AN ANTICORRELATION EFFECT IN THE PRODUCTION OF HARD PHOTONS AND PREEQUILIBRIUM PROTONS IN HEAVY-ION COLLISIONS, Physical review letters, 73(13), 1994, pp. 1769-1772
An exclusive study of the hard photon production in the reaction Ar-40
+V-51 at 44 MeV/nucleon has been carried on with the 4 pi multidetecto
r MEDEA. An anticorrelation effect in the emission of very energetic p
hotons and protons has been observed for the first time. This is a str
ong indication for the first-chance n-p bremsstrahlung production mech
anism.