MEASUREMENT OF THE REACTIONS O-17(alpha,gamma)Ne-21 AND O-17(alpha, n)Ne-20 AND THEIR IMPACT ON THE WEAK s PROCESS


Best A., Gorres J., Beard M., Couder M., Deboer R., Falahat S., ...Daha Fazla

14th International Symposium on Capture Gamma-Ray Spectroscopy and Related Topics (CGS), Guelph, Kanada, 28 Ağustos - 02 Eylül 2011, ss.320-325 identifier

  • Cilt numarası:
  • Basıldığı Şehir: Guelph
  • Basıldığı Ülke: Kanada
  • Sayfa Sayıları: ss.320-325

Özet

The ratio of the reaction rates of the competing channels O-17(alpha, gamma)Ne-21 and O-17(alpha, n)Ne-20 determines the efficiency of O-16 as a neutron poison in the weak s process. We present results of the first measurement of the reaction O-17(alpha, gamma)Ne-21 and an improved study of the reaction O-17(alpha, n)Ne-20, including an independent measurement of the O-17(alpha, n(1))Ne-20 channel and a simultaneous R-Matrix fit to both the n(o) and the n(1) channels. The impact of the new data on the weak s process is discussed.