First direct measurement of resonance strengths in 17O({\alpha},   {\gamma})21Ne
  The reaction 17O({\alpha},{\gamma})21Ne has been measured by in-beam gamma spectroscopy for the first time in the energy range E{\alpha} = 750 keV to 1650 keV using highly enriched anodized Ta2(17O)5 targets. Resonances were found at E({\alpha}) = 1002 keV, 1386 keV and 1619 keV. Their strengths and primary gamma-ray branchings are given. The new results exclude the low reaction rate of Descouvemont and support the rate of Caughlan and Fowler. Implications for the neutron poisoning efficiency of 16O in the weak s process are discussed. 
A. Best, J. G\"orres, M. Couder, R. deBoer, S. Falahat, A. Kontos, P.   J. LeBlanc, Q. Li, S. O'Brien, K. Sonnabend, R. Talw...
nucl-ex