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Three-body continuum in (13C, 13N) and (13C, 14N) reactions

1987; Elsevier BV; Volume: 475; Issue: 3 Linguagem: Inglês

10.1016/0375-9474(87)90081-9

1873-1554

Emmanuel D. Adamides, H. G. Bohlen, W. von Oertzen, M. Buénerd, J. Chauvin, D. Lebrun, J-Y. Hostachy, P. Martin, G. Perrin, P. de Saintignon,

Nuclear Physics and Applications

Energy spectra for the reactions (13C, 13N) and (13C, 14N) on 12C, 27Al, 58Ni and 90Zr at 30 MeV/N in the angular range of 1.8° ⩽ θlab ⩽ 5.6° have been measured. The three-body continuum has been calculated for these reactions and its contribution to the spectra is discussed quantitatively by unfolding two-body and three-body contributions. The 14N energy spectrum obtained with the 12C target shows prominent structures in the high-energy region which can be very well explained by the three-body channel (13C, 15N+ → 14N + n). It is concluded that almost all the continuum in the spectra of the reactions (13C, 14N) comes from the pick-up and decay process. The three-body contribution to the continuum of the charge-exchange (13C, 13N) reactions is found to be smaller and a large part of the continuum is the result of the two-body reaction.