¹⁴C(,) reaction rate

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E. D. Johnson, G. V. Rogachev, J. Mitchell, L. Miller, and K. W. Kemper
Department of Physics, Florida State University, Florida 32306, USA

Received 14 August 2009; published 22 October 2009

The¹⁴C( alpha , gamma ) reaction rate at temperatures below 0.3 GK depends on theproperties of two near threshold resonances in ¹⁸O, the 1^-at 6.198 MeV and the 3^- at 6.404 MeV. The alpha +¹⁴C asymptoticnormalization coefficients for these resonances were determined using the alpha -transferreactions ¹⁴C(⁷Li, t) and ¹⁴C(⁶Li, d) at sub-Coulomb energies. The¹⁴C( alpha , gamma ) reaction rate at low temperatures has been evaluated. Implicationsof the new reaction rate on the evolution of accretinghelium white dwarfs and on the nucleosynthesis of low massstars during the asymptotic giant branch phase are discussed.

URL:	http://link.aps.org/doi/10.1103/PhysRevC.80.045805
DOI:	10.1103/PhysRevC.80.045805
PACS:	21.10.Jx; 25.70.Hi; 26.20.-f; 26.30.-k 21.10.Jx Nuclear spectroscopic factors and asymptotic normalization coefficients 25.70.Hi Heavy ion-induced transfer reactions 26.20.-f Hydrostatic stellar nucleosynthesis 26.30.-k Nucleosynthesis in novae, supernovae and other explosive environments YEAR: 2009

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