The He-3+He-5 -> alpha plus alpha reaction below the Coulomb barrier via the Trojan Horse Method

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F21%3A00539481" target="_blank" >RIV/61389005:_____/21:00539481 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1140/epja/s10050-020-00324-4" target="_blank" >https://doi.org/10.1140/epja/s10050-020-00324-4</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1140/epja/s10050-020-00324-4" target="_blank" >10.1140/epja/s10050-020-00324-4</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The He-3+He-5 -> alpha plus alpha reaction below the Coulomb barrier via the Trojan Horse Method

Popis výsledku v původním jazyce

For the first time in an application to nuclear astrophysics, a process induced by the unstable He-5 = (He-4-n) nucleus, the He-3+He-5 -> 2 alpha reaction, has been studied through the Trojan Horse Method (THM). For that purpose, the quasi-free (QF) contribution of the Be-9(He-3,alpha alpha)He-4 reaction was selected at E3He = 4 MeV incident energy. The reaction was studied in a kinematically complete experiment following a recent publication (Spitaleri et al. in Eur Phys J A 56:18, 2020), where for the quasi free contribution the momentum distribution between alpha and He-5 particle cluster in the Be-9 nucleus in the ground state have been extracted. The angular distribution of the QF He-3+He-5 -> 2 alpha reaction was measured at theta(cm) = 78 degrees-115 degrees. The energy dependence of the differential cross section of the He-3+He-5 -> 2 alpha virtual reaction was extracted in the energy range E-cm = 0-650 keV. The total cross section obtained from the Trojan-horse methodwas normalized to absolute cross sections from a theoretical calculation in the energy range E-cm =300-620 keV.

Název v anglickém jazyce

The He-3+He-5 -> alpha plus alpha reaction below the Coulomb barrier via the Trojan Horse Method

Popis výsledku anglicky

For the first time in an application to nuclear astrophysics, a process induced by the unstable He-5 = (He-4-n) nucleus, the He-3+He-5 -> 2 alpha reaction, has been studied through the Trojan Horse Method (THM). For that purpose, the quasi-free (QF) contribution of the Be-9(He-3,alpha alpha)He-4 reaction was selected at E3He = 4 MeV incident energy. The reaction was studied in a kinematically complete experiment following a recent publication (Spitaleri et al. in Eur Phys J A 56:18, 2020), where for the quasi free contribution the momentum distribution between alpha and He-5 particle cluster in the Be-9 nucleus in the ground state have been extracted. The angular distribution of the QF He-3+He-5 -> 2 alpha reaction was measured at theta(cm) = 78 degrees-115 degrees. The energy dependence of the differential cross section of the He-3+He-5 -> 2 alpha virtual reaction was extracted in the energy range E-cm = 0-650 keV. The total cross section obtained from the Trojan-horse methodwas normalized to absolute cross sections from a theoretical calculation in the energy range E-cm =300-620 keV.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10308 - Astronomy (including astrophysics,space science)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

European Physical Journal A

ISSN

1434-6001

e-ISSN

1434-601X

Svazek periodika

57

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

15

Strana od-do

20

Kód UT WoS článku

000607411900001

EID výsledku v databázi Scopus

2-s2.0-85099340614