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

 

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Opened Access Astrophysical reaction rate for 9 Be formation within a three-body approach
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Author: Casal Berbel, Jesús
Rodríguez Gallardo, Manuela
Arias Carrasco, José Miguel
Thompson, I. J.
Department: Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear
Date: 2014
Published in: Physical Review C - Nuclear Physics, 90 (4), 044304-1-044304-11.
Document type: Article
Abstract: 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.
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URI: http://hdl.handle.net/11441/56968

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