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Angular distribution of electromagnetic bremsstrahlung from heavy-ion collisions at intermediate energies

1986; Elsevier BV; Volume: 176; Issue: 3-4 Linguagem: Inglês

10.1016/0370-2693(86)90163-2

1873-2445

David Vasak,

X-ray Spectroscopy and Fluorescence Analysis

Recently measured spectra of hard photons emitted in collisions between two heavy ions at bombarding energies as low as 35 MeV/n have been reported by Alamanos et al. to show dipole-like angular patterns. In a schematic calculation it will become obvious that these photons may be interpreted as coherent bremsstrahlung arising from collisions with non-zero impact parameters where the axial symmetry, which usually leads to cancellation of the dipole contribution, is distorted.