Cross-section Measurement of the Cosmologically Relevant Be-7(n, alpha)He-4 Reaction over a Broad Energy Range in a Single Experiment

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F19%3A00506669" target="_blank" >RIV/61389005:_____/19:00506669 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.3847/1538-4357/ab2234" target="_blank" >https://doi.org/10.3847/1538-4357/ab2234</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3847/1538-4357/ab2234" target="_blank" >10.3847/1538-4357/ab2234</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Cross-section Measurement of the Cosmologically Relevant Be-7(n, alpha)He-4 Reaction over a Broad Energy Range in a Single Experiment

Popis výsledku v původním jazyce

Studying interactions of radioactive ions with neutrons is particularly demanding and has been performed only in a few cases. Some of these interactions are crucial in several astrophysical contexts. In the present work, the case of the Be-7 destruction induced by the (n,alpha) reaction is investigated at the energies typical of the primordial nucleosynthesis by means of the Trojan Horse Method applied to the H-2(Be-7,alpha alpha)p quasi-free reaction. The Be-7(n,alpha)(4) He cross-section has been measured in a single experiment from similar to 2 MeV down to cosmological energies. The corresponding deduced reaction rate has been adopted to evaluate the impact on big bang nucleosynthesis and on the lithium problem.

Název v anglickém jazyce

Cross-section Measurement of the Cosmologically Relevant Be-7(n, alpha)He-4 Reaction over a Broad Energy Range in a Single Experiment

Popis výsledku anglicky

Studying interactions of radioactive ions with neutrons is particularly demanding and has been performed only in a few cases. Some of these interactions are crucial in several astrophysical contexts. In the present work, the case of the Be-7 destruction induced by the (n,alpha) reaction is investigated at the energies typical of the primordial nucleosynthesis by means of the Trojan Horse Method applied to the H-2(Be-7,alpha alpha)p quasi-free reaction. The Be-7(n,alpha)(4) He cross-section has been measured in a single experiment from similar to 2 MeV down to cosmological energies. The corresponding deduced reaction rate has been adopted to evaluate the impact on big bang nucleosynthesis and on the lithium problem.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10308 - Astronomy (including astrophysics,space science)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Astrophysical Journal

ISSN

0004-637X

e-ISSN

—

Svazek periodika

897

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

8

Strana od-do

23

Kód UT WoS článku

000473493100012

EID výsledku v databázi Scopus

2-s2.0-85070732350