Spectroscopy of Low-Lying Proton-Resonances using the $(d,n)$ Reaction in Inverse Kinematics

ORAL

Abstract

Studies of rp-process nucleosynthesis in stellar explosions show that establishing the lowest $l=0$ and $l=1$ resonances is the most important step to determine reaction rates in the astrophysical $rp$--process path. In order to establish the $(d,n)$ reaction as a standard technique for the spectroscopy of astrophysical resonances, we have developed a compact setup of low-energy Neutron-detectors, {\sc resoneut} and tested it with the stable beam reaction $\mathrm{^{12}C(d,n)^{13}N}$ in inverse kinematics. At the {\sc resolut} in-flight radioactive beam facility, we have used the new detector system to investigate the $l=0$ and $l=1$ resonance spectrum in $^{18}$Ne and $^{26}$Si. Results from these experiments and the implications on proton-induced nucleosynthesis rates will be discussed.

*Supported by NSF under grants PHY-1064819, PHY-0821308 and PHY-0820941. Supported by DOE under grant DE-FG02-02ER41220.

Authors

  • Ingo Wiedenhoever

    • Florida State University
    • Physics Department, Florida State University
  • Lagy T. Baby

    • Florida State University
  • Sean Kuvin

    • Florida State University
  • Jessica Baker

    • Florida State University
  • Jeff Blackmon

    • Louisiana State University
  • Catherine Deibel

    • Louisiana State University
  • Kevin Macon

    • Louisiana State University
  • Dennis Gay

    • University of North Florida
  • Kayla Colbert

    • University of North Florida
  • Nathan Quails

    • University of North Florida