title: Coherent bremsstrahlung in the alpha + p system at 50 MeV/nucleon
abstract: Photons originating from coherent bremsstrahlung have been measured over a large dynamic range for the reaction of 200 MeV alpha particles with protons. At low photon energies the bremsstrahlung spectrum exhibits the classical behavior with an approximate 1/E(gamma) shape. At higher photon energies there is a pronounced contribution from capture into the unbound ground state and first excited state of 5Li. These results allow one, for the first time, to test theoretical models for a consistent description of bremsstrahlung and radiative capture in a complex system. Calculations predict both features qualitatively but fail to account for their relative importance.
authors.affiliation: Kernfysisch Versneller Instituut, Zernikelaan 25, NL-9747 AA Groningen, The Netherlands.
authors.initials: M
authors.lastname: Hoefman
authors.initials: L
authors.lastname: Aphecetche
authors.initials: JC
authors.lastname: Bacelar
authors.initials: H
authors.lastname: Delagrange
authors.initials: P
authors.lastname: Descouvemont
authors.initials: J
authors.lastname: Diaz
authors.initials: D
authors.lastname: d'Enterria
authors.lastname: van Goethem M
authors.initials: R
authors.lastname: Holzmann
authors.initials: H
authors.lastname: Huisman
authors.initials: N
authors.lastname: Kalantar-Nayestanaki
authors.initials: A
authors.lastname: Kugler
authors.initials: H
authors.lastname: Lohner
authors.initials: FM
authors.lastname: Marques
authors.initials: G
authors.lastname: Martinez
authors.initials: JG
authors.lastname: Messchendorp
authors.initials: RW
authors.lastname: Ostendorf
authors.initials: S
authors.lastname: Schadmand
authors.initials: RH
authors.lastname: Siemssen
authors.initials: RS
authors.lastname: Simon
authors.initials: Y
authors.lastname: Schutz
authors.initials: R
authors.lastname: Timmermans
authors.initials: R
authors.lastname: Turrisi
authors.initials: M
authors.lastname: Volkerts
authors.initials: V
authors.lastname: Wagner
authors.initials: H
authors.lastname: Weller