# Coulomb dissociation of $^{20,21}$N

Abstract : Neutron-rich light nuclei and their reactions play an important role for the creation of chemical elements. Here, data from a Coulomb dissociation experiment on $^{20,21}$N are reported. Relativistic $^{20,21}$N ions impinged on a lead target and the Coulomb dissociation cross section was determined in a kinematically complete experiment. Using the detailed balance theorem, the $^{19}\mathrm{N}(\mathrm{n},\gamma)^{20}\mathrm{N}$ and $^{20}\mathrm{N}(\mathrm{n},\gamma)^{21}\mathrm{N}$ excitation functions and thermonuclear reaction rates have been determined. The $^{19}\mathrm{N}(\mathrm{n},\gamma)^{20}\mathrm{N}$ rate is up to a factor of 5 higher at $T<1$\,GK with respect to previous theoretical calculations, leading to a 10\,\% decrease in the predicted fluorine abundance.
Type de document :
Article dans une revue
Physical Review C, American Physical Society, 2016, 93, pp.065807. 〈10.1103/PhysRevC.93.065807〉

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Contributeur : Michel Lion <>
Soumis le : jeudi 2 juin 2016 - 21:48:57
Dernière modification le : samedi 14 avril 2018 - 11:46:03

### Citation

M. Röder, T. Adachi, Y. Aksyutina, J. Alcantara, S. Altstadt, et al.. Coulomb dissociation of $^{20,21}$N. Physical Review C, American Physical Society, 2016, 93, pp.065807. 〈10.1103/PhysRevC.93.065807〉. 〈in2p3-01325998〉

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