Alpha-capture reaction rates for 22Ne(alpha,n) via sub-Coulomb alpha-transfer

ORAL

Abstract

Direct measurements of $\alpha$-capture reactions at energies relevant to astrophysics is extremely difficult to carry out due to the very small reaction cross section. The large uncertainties introduced when extrapolating direct measurements at high energies down to the Gamow energies can be overcome by measuring the Asymptotic Normalization Coefficients (ANC) of the relevant states using ($^{6}$Li,d) $\alpha$-transfer reactions at sub-Coulomb energies to reduce the model dependence. The study of the $^{22}$Ne($^{6}$Li,d) reaction was carried out at the Cyclotron Institute at Texas A$\&$M University. The $\alpha$-ANC measurements for the near $\alpha$-threshold resonances of $^{26}$Mg will provide constraints for the reaction rate of the $^{22}$Ne($\alpha$,n) reaction.

Authors

  • Heshani Jayatissa

    Texas A&M University, TAMU

  • G. Rogachev

    Texas A&M University, TAMU

  • E. Koshchiy

    Texas A&M University

  • Vladilen Goldberg

    Texas A&M University

  • Shadi Bedoor

    TAMU, Texas A&M University

  • Joshua Hooker

    Texas A&M University

  • Curtis Hunt

    Texas A&M University

  • Cordero Magana

    Texas A&M University

  • Brian Roeder

    Texas A&M University

  • Antti Saastamoinen

    Texas A&M University

  • Alexandria Spiridon

    Texas A&M University

  • Sriteja Upadhyayula

    Texas A&M University