Determination of the astrophysical 13N (p, γ) 14O cross section through the Coulomb dissociation method

T. Motobayashi, T. Takei, S. Kox, C. Perrin, F. Merchez, D. Rebreyend, K. Ieki, H. Murakami, Y. Ando, N. Iwasa, M. Kurokawa, S. Shirato, J. Ruan, T. Ichihara, T. Kubo, N. Inabe, A. Goto, S. Kubono, S. Shimoura, M. Ishihara

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109 Citations (Scopus)


The Coulomb dissociation reaction 208Pb(14O, 13N p)208Pb was measured at Ein = 87.5 MeV/u to determine the radiative width Γγ of the 1- state in 14O at Eex = 5.17 MeV. This state dominates the radiative capture process 13N(p, γ) 14O, a key reaction in the hot CNO cycle of hydrogen burning in stars. We have deduced Γγ = 3.1 ± 0.6 eV with the help of a coupled channel calculation. The validity of the technique was confirmed in the case of the 208Pb(13N, 12C p)208Pb reaction exciting the 1 2+ state in 13N whose width is known.

Original languageEnglish
Pages (from-to)259-263
Number of pages5
JournalPhysics Letters B
Issue number3-4
Publication statusPublished - 1991 Aug 1

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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