A saga on the ${\hat{I}}^3$-decay branching ratio of the Hoyle state

W. Paulsen, K. C. W. Li, S. Siem +12

The radiative branching ratio of the Hoyle state is crucial to estimate the triple-$\hat{I}\pm$ reaction rate in stellar environments at medium temperatures of $T=0.1$ to 2 GK. Knowledge o…