MEASUREMENT OF THE REACTIONS <SUP>17</SUP>O(α,γ)<SUP>21</SUP>Ne AND <SUP>17</SUP>O(α, n)<SUP>20</SUP>Ne AND THEIR IMPACT ON THE WEAK s PROCESS

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

14th International Symposium on Capture Gamma-Ray Spectroscopy and Related Topics (CGS), Guelph, Canada, 28 August - 02 September 2011, pp.320-325, (Full Text) identifier

  • Publication Type: Conference Paper / Full Text
  • City: Guelph
  • Country: Canada
  • Page Numbers: pp.320-325
  • Kocaeli University Affiliated: Yes

Abstract

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.