The $^{22}$Ne($\alpha$,n)$^{25}$Mg neutron source: latest experimental results and prospects

Claudio Ugalde

The $^{22}$Ne($\alpha$,n)$^{25}$Mg neutron source: latest experimental results and prospects

Nuclear Experiment 2008-10-08 v1

Authors: Claudio Ugalde

Abstract

The current status of the reaction rate of $^{22}$ Ne( $\alpha$ ,n) $^{25}$ Mg is summarized. Among the latest new results, probably the most relevant is the conclusion that the E $_x$ =11.15 MeV state in $^{26}$ Mg has a non-natural parity, so it does not contribute to the rates of the $\alpha$ + $^{22}$ Ne reactions. However, it may be possible that other neighboring states contribute to the neutron yield at stellar temperatures. Here we make an account of some of the experimental work in the literature that is relevant to this state. Indeed, it would have been possible to avoid the controversy regarding this state before it even started.

Keywords

$^{22}$Ne($\alpha$,n)$^{25}$Mg neutron source nuclear reaction rate $^{26}$Mg state non-natural parity stellar nucleosynthesis

Cite

@article{arxiv.0810.1262,
  title  = {The $^{22}$Ne($\alpha$,n)$^{25}$Mg neutron source: latest experimental results and prospects},
  author = {Claudio Ugalde},
  journal= {arXiv preprint arXiv:0810.1262},
  year   = {2008}
}

Comments

Nuclei in the cosmos 10 (NIC X) conference proceedings

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