Nucleus-Nucleus Bremsstrahlung from Heavy-Ion Collisions

Abstract
We present the first direct observation of nucleus-nucleus bremsstrahlung from heavyion collisions, and demonstrate the characteristic forward-backward emission asymmetry predicted for interfering dipole and quadrupole emission components. These studies indicate that both the intensity and angular distribution of nucleus-nucleus bremsstrahlung constitute important considerations in the quasimolecular spectroscopy of heavy collision systems.