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arXiv · 1604.06209

Determining astrophysical three-body radiative capture reaction rates from inclusive Coulomb break-up measurements

J. Casal·M. Rodríguez-Gallardo·J. M. Arias·J. Gómez-Camacho
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Abstract

A relationship between the Coulomb inclusive break-up probability and the radiative capture reaction rate for weakly-bound three-body systems is established. This direct link provides a robust procedure to estimate the reaction rate for nuclei of astrophysical interest by measuring inclusive break-up processes at different energies and angles. This might be an advantageous alternative to the determination of reaction rates from the measurement of $B(E1)$ distributions through exclusive Coulomb break-up experiments. In addition, it provides a reference to assess the validity of different theoretical approaches that have been used to calculate reaction rates. The procedure is applied to $^{11}$Li ($^{9}$Li+n+n) and $^6$He ($^{4}$He+n+n) three-body systems for which some data exist.

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J. Casal, M. Rodríguez-Gallardo, J. M. Arias, J. Gómez-Camacho. 2016-04-21. Determining astrophysical three-body radiative capture reaction rates from inclusive Coulomb break-up measurements. https://doi.org/10.1103/physrevc.93.041602

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