Suppression of soft nuclear Bremsstrahlung in proton-nucleus collisions
M.J. van Goethem
,
Laurent Aphecetche
(1, 2)
,
J.C.S. Bacelar
,
H. Delagrange
(1, 2)
,
J. Diaz
,
D. d'Enterria
(1, 2)
,
M. Hoefman
,
R. Holzmann
,
H. Huisman
,
N. Kalantar-Nayestanaki
,
A. Kugler
,
H. Loehner
,
Gines Martinez Garcia
(1, 2)
,
J.G. Messchendorf
,
R.W. Ostendorf
,
S. Schadmand
,
R.H. Siemssen
,
R.S. Simon
,
Y. Schutz
(1, 2)
,
R. Turrisi
,
M. Vokerts
,
V. Wagner
,
H.W. Wischut
M.J. van Goethem
- Function : Author
Laurent Aphecetche
- Function : Author
- PersonId : 2010
- IdHAL : laurent-aphecetche
- ORCID : 0000-0001-7662-3878
- IdRef : 113847653
J.C.S. Bacelar
- Function : Author
J. Diaz
- Function : Author
M. Hoefman
- Function : Author
R. Holzmann
- Function : Author
H. Huisman
- Function : Author
N. Kalantar-Nayestanaki
- Function : Author
A. Kugler
- Function : Author
H. Loehner
- Function : Author
Gines Martinez Garcia
- Function : Author
- PersonId : 169952
- IdHAL : gines-martinez
- ORCID : 0000-0002-8657-6742
- IdRef : 068952961
J.G. Messchendorf
- Function : Author
R.W. Ostendorf
- Function : Author
S. Schadmand
- Function : Author
R.H. Siemssen
- Function : Author
R.S. Simon
- Function : Author
R. Turrisi
- Function : Author
M. Vokerts
- Function : Author
V. Wagner
- Function : Author
H.W. Wischut
- Function : Author
Abstract
Photon energy spectra up to the kinematic limit have been measured in 190 MeV proton reactions with light and heavy nuclei to investigate the influence of the multiple-scattering process on the photon production. Relative to the predictions of models based on a quasifree production mechanism, a strong suppression of bremsstrahlung is observed in the low-energy region of the photon spectrum. We attribute this effect to the interference of photon amplitudes due to multiple scattering of nucleons in the nuclear medium.