Ratio of S factors for (p, γ) reactions on 12 C and 13 C at astrophysically relevant energies


Journal Article

We present measurements of the 12C(p, γ0)13N/13C(p, γ0)14N S factor ratio at Ep=160 keV. The overall result of 0.33±0.03 is in good agreement with the value of this ratio obtained from previous experimental values of the S factors for the 12C(p, γ0) 13N and the 13C(p, γ0) 14N reactions. A value for the total S factor ratio of S[12C(p, γtotal)]/S[13C(p, γtotal)] = 0.24±0.03 is computed by correcting the 13C(p, γ0) S factor for transitions to the other intermediate states. The direct + resonance model calculation of this ratio and the impact on the CNO cycle are also explored.

Full Text

Duke Authors

Cited Authors

  • Nesaraja, CD; Brune, CR; Crowley, BT; Kelley, JH; Nelson, SO; Prior, RM; Sabourov, K; Tilley, DR; Tonchev, A; Weller, HR

Published Date

  • January 1, 2001

Published In

Volume / Issue

  • 64 / 6

Start / End Page

  • 658041 - 658047

Electronic International Standard Serial Number (EISSN)

  • 1089-490X

International Standard Serial Number (ISSN)

  • 0556-2813

Digital Object Identifier (DOI)

  • 10.1103/PhysRevC.64.0658XX

Citation Source

  • Scopus