Analysis of the cross-sections of protons emitted at backward angles from4He-induced reactions at (11.2÷27.5) MeV/A
- 16 Downloads
Summed exclusive proton cross-sections at angles of 45° and 135° are obtained for the159Tb (4He, pxnγ) reactions atE(4He)=45, 75 and 110 MeV and for the209Bi (4He, pxnγ) reactions atE(4He)=45, 75 MeV from particle—γ-ray coincidence experiments. The experimental data are analyzed in the framework of the complete fusion—statistical decay model. It is shown that the summed exclusive proton spectra at backward angle of ϑ=135° with respect to the beam direction and particularly their high-energy parts cannot be explained by the model considered. A conclusion is drawn that an additional reaction mechanism intermediate with respect to both compound and direct ones should be invoked.
PACS22.55 -3H-,3He-, and4He-induced reactions and scattering
PACS25.55.Fm - Few-nucleon transfer reactions
PACS25.70.Gh - Compound nucleus properties and decays
Unable to display preview. Download preview PDF.
- B. Bochev, R. M. Lieder, T. Kutsarova, T. Morek, A. Neskakis andJ.-P. Didelez:Proceedings of the VI International School on Nuclear Physics, Neutron Physics and Nuclear Energy, Varna, September 12–21, 1983.Google Scholar
- M. Hilman andY. Eyal: Code JULIAN (unpublished);A. Gavron:Phys. Rev. C,21, 230 (1980).Google Scholar
- I. I. Delchev, I. Zh. Petkov andChr. V. Christov: Com. JINR, R4-8537, Dubna, 1975;I. I. Delchev, I. Zh. Petkov andE. K. Marchev:Z. Phys. A,290, 273 (1979).Google Scholar