RT Journal Article
T1 Cross-section Measurement of the Cosmologically Relevant 7Be(n, α)4He Reaction over a Broad Energy Range in a Single Experiment
A1 Lamia, L.
A1 Mazzocco, M.
A1 Pizzone, R. G.
A1 Sánchez Benítez, Ángel Miguel
AB Studying interactions of radioactive ions with neutrons is particularly demanding and has been performed only in afew cases. Some of these interactions are crucial in several astrophysical contexts. In the present work, the case ofthe 7Be destruction induced by the (n, α) reaction is investigated at the energies typical of the primordialnucleosynthesis by means of the Trojan Horse Method applied to the 2H(7Be, αα)p quasi-free reaction. The7Be(n, α)4He cross-section has been measured in a single experiment from ∼2 MeV down to cosmologicalenergies. The corresponding deduced reaction rate has been adopted to evaluate the impact on big bangnucleosynthesis and on the lithium problem.
PB American Astronomical Society
SN 0004-637X
YR 2019
FD 2019-07
LK http://hdl.handle.net/10272/16684
UL http://hdl.handle.net/10272/16684
LA eng
NO Lamia, L., Mazzocco, M., Pizzone, R. G., ...  Sánchez Benítez, Á. M. (2019). Cross-section Measurement of the Cosmologically Relevant 7Be(n, α)4He Reaction over a Broad Energy Range in a Single Experiment. The Astrophysical Journal, 879(1), 23. DOI: https://doi.org/10.3847/1538-4357/ab2234
NO This work has been partially supported by the Italian Ministry of the University under grant RBFR082838 and "LNS-Astrofisica Nucleare (fondi premiali)." J.M. and G.D'A. acknowledge MEYS, under the project SPIRAL2-CZ, EF16-013/0001679. C.A.B. acknowledges support from the U.S. NSF grant No 1415656 and the U.S. DOE grant No. DE-FG02-08ER41533. S.H. acknowledges "JSPS KAKENHI (grant No. 15K17631)."
DS Repositorio Institucional de la Universidad de Huelva
RD 31 may 2026