Astrophysical reaction rate for 9 Be formation within a three-body approach

Description

The structure of the Borromean nucleus 9Be (α+α+n) is addressed within a three-body approach using the analytical transformed harmonic oscillator method. The three-body formalism provides an accurate description of the radiative capture reaction rate for the entire temperature range relevant in astrophysics. At high temperatures, results match the calculations based on two-step sequential processes. At low temperatures, where the particles have no access to intermediate two-body resonances, the three-body direct capture leads to reaction rates larger than the sequential processes. These results support the reliability of the method for systems with several charged particles.

Abstract

Ministerio de Economía y Competitividad (España) FPA2009-07653 FIS2011-28738-c02-0

Abstract

Junta de Andalucía FQM-160 P11-FQM-7632

Abstract

Programa Consolider-Ingenio 2010 CSD2007-00042

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