Bremsstrahlung in the nuclear fireball model

The recently proposed nuclear fireball model is used to calculate the low-energy ( 10 MeV) bremsstrahlung from relativistic heavy ion collisions. For low-energy photons with wavelengths larger than nuclear dimensions and frequencies smaller than the inverse collision time the bremsstrahlung is nearly independent of details of the collision process. The number of photons produced per collision depends strongly on the impact parameter. Production cross sections are generally strongly peaked in the forward direction with a broad hump in the backward direction, and appear to be large enough to be seen experimentally. NUCLEAR REACTIONS Relativistic heavy ions, calculated bremsstrahlung, E10 MeV.