Theoretical photo-disintegration of $^{16}$O

TL;DR

This paper provides a theoretical analysis of the photo-disintegration process of oxygen-16, emphasizing the role of E2 excitation near the alpha-particle threshold, which influences key astrophysical reaction rates.

Contribution

It offers a theoretical prediction of the dominant E2 excitation mechanism in oxygen-16 photo-disintegration near the alpha threshold, informing astrophysical reaction rate calculations.

Findings

E2 excitation dominates near alpha threshold

Reaction rates for $^{12}$C($ ext{α}$,$ ext{γ}$)$^{16}$O are influenced by this process

Theoretical predictions guide experimental and astrophysical models

Abstract

The photodisintegration of $^{16}$O is predicted to be dominated by $E$2 excitation in the vicinity of the $\alpha$-particle threshold. The reaction rates of $^{12}$C($\alpha$,$\gamma$)$^{16}$O are expected to be determined from this reaction.