Elastic, inelastic scattering and fusion of the $^{\bf 14}$N + $^{\bf 59}$Co system at energies close to the coulomb barrier

C. Muri; R.M. Anjos; R. Cabezas; P.R.S. Gomes; S.B. Moraes; A.M.M. Maciel; G.M. Santos; J. Lubian; M.M. Sant'Anna; C. Tenreiro; R. Liguori Neto; J.C. Acquadro; P.A.B. Freitas

doi:doi:10.1007/s100500050044

2022 Impact factor 2.7

Hadrons and Nuclei

Eur. Phys. J. A 1, 143-149

Elastic, inelastic scattering and fusion of the ¹⁴N + ⁵⁹Co system at energies close to the coulomb barrier

C. Muri¹ - R.M. Anjos¹ - R. Cabezas¹ - P.R.S. Gomes¹ - S.B. Moraes¹ - A.M.M. Maciel¹ - G.M. Santos¹ - J. Lubian¹ - M.M. Sant'Anna¹ - C. Tenreiro² - R. Liguori Neto² - J.C. Acquadro² - P.A.B. Freitas²

¹ Instituto de Física, Universidade Federal Fluminense, Gragoatá, Niterói, R.J., 24210-340, Brazil. fax: +55-21-6204553
² Instituto de Física, Universidade de São Paulo, C.P. 20516, S. Paulo, 01498-970, Brazil

Received: 6 February 1997 / Revised version: 1 August 1997 Communicated by C. Signorini

Abstract
Elastic and inelastic scattering differential cross sections were measured in the energy range 30 MeV $\leq$ E_lab $\leq$ 55 MeV, for the ¹⁴N + ⁵⁹Co system. Ambiguities of the optical potential derived from the analysis of the elastic scattering data were removed by performing calculations at the radius of sensitivity and by comparison with the available fusion cross section data. A simultaneous analysis of the three mechanisms was performed by coupled channel calculations, and a unique energy independent nuclear potential was found to be able to fit the data. Discussions and comparisons concerning the optical model, the threshold anomaly, full and approximated coupled channel calculations are presented.

PACS
24.10.Eq Coupled-channel and distorted-wave models - 24.10.Ht Optical and diffraction models - 25.45.De Elastic and inelastic scattering - 25.70.Jj Fusion and fusion-fission reactions