Gamow-Teller strength for the analog transitions to the firstT=1/2,Jπ=3/2−states inC13andN13and the implications for type Ia supernovae
Citations Over TimeTop 10% of 2008 papers
Abstract
The Gamow-Teller strength for the transition from the ground state of $^{13}\mathrm{C}$ to the $T=1/2,{J}^{\ensuremath{\pi}}=3/{2}^{\ensuremath{-}}$ excited state at 3.51 MeV in $^{13}\mathrm{N}$ is extracted via the $^{13}\mathrm{C}$($^{3}\mathrm{He}$,$t$) reaction at 420 MeV. In contrast to results from earlier ($p,n$) studies on $^{13}\mathrm{C}$, a good agreement with shell-model calculations and the empirical unit cross-section systematics from other nuclei is found. The results are used to study the analog $^{13}\mathrm{N}$(${e}^{\ensuremath{-}},{\ensuremath{\nu}}_{e}$)$^{13}\mathrm{C}$ reaction, which plays a role in the pre-explosion convective phase of type Ia supernovae. Although the differences between the results from the ($^{3}\mathrm{He}$,$t$) and ($p,n$) data significantly affect the deduced electron-capture rate and the net heat deposition in the star resulting from this transition, the overall effect on the pre-explosive evolution is small.
Related Papers
- → Deexcitation and recombination of excited ions through doubly excited levels in a dense recombining plasma: Lithiumlike recombining plasma laser(1997)12 cited
- → Collisional deexcitation of the excited rare gas atoms in resonant states: The Watanabe–Katsuura theory revisited(2002)5 cited
- → Influence of the autoionising states on the linear polarisation of helium lines excited by electrons with energy between 56 and 64 eV(1980)15 cited
- → Frequency distribution of radiation emitted from excited atomic systems(1971)2 cited
- → EXCITATION ENERGY TRANSFER BY COLLISIONS BETWEEN EXCITED RUBIDIUM ATOMS(1998)1 cited