Indirect study of B-11(p,alpha(0))Be-8 and B-10(p,alpha)Be-7 reactions at astrophysical energies by means of the Trojan Horse Method: recent results

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F10%3A00346844" target="_blank" >RIV/61389005:_____/10:00346844 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Indirect study of B-11(p,alpha(0))Be-8 and B-10(p,alpha)Be-7 reactions at astrophysical energies by means of the Trojan Horse Method: recent results

Popis výsledku v původním jazyce

Nuclear (p,alpha) reactions destroying the so-called "light-elements" lithium, beryllium and boron have been largely studied in the past mainly because their role in understanding some astrophysical phenomena, i.e. mixing-phenomena occurring in young F-Gstars [1]. Such mechanisms transport the surface material down to the region close to the nuclear destruction zone, where typical temperatures of the order of similar to 10(6) K are reached. The corresponding Gamow energy E-0=1.22 (Z(x)(2)Z(X)(2)T(6)(2))(1/3) [2] is about similar to 10 keV if one considers the "boron-case" and replaces in the previous formula Z(x) = 1, Z(X) = 5 and T-6 = 5. Direct measurements of the two B-11(p,alpha(0))Be-8 and B-10(p,alpha)Be-7 reactions in correspondence of this energy region are difficult to perform mainly because the combined effects of Coulomb barrier penetrability and electron screening [3].

Název v anglickém jazyce

Indirect study of B-11(p,alpha(0))Be-8 and B-10(p,alpha)Be-7 reactions at astrophysical energies by means of the Trojan Horse Method: recent results

Popis výsledku anglicky

Nuclear (p,alpha) reactions destroying the so-called "light-elements" lithium, beryllium and boron have been largely studied in the past mainly because their role in understanding some astrophysical phenomena, i.e. mixing-phenomena occurring in young F-Gstars [1]. Such mechanisms transport the surface material down to the region close to the nuclear destruction zone, where typical temperatures of the order of similar to 10(6) K are reached. The corresponding Gamow energy E-0=1.22 (Z(x)(2)Z(X)(2)T(6)(2))(1/3) [2] is about similar to 10 keV if one considers the "boron-case" and replaces in the previous formula Z(x) = 1, Z(X) = 5 and T-6 = 5. Direct measurements of the two B-11(p,alpha(0))Be-8 and B-10(p,alpha)Be-7 reactions in correspondence of this energy region are difficult to perform mainly because the combined effects of Coulomb barrier penetrability and electron screening [3].

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BG - Jaderná, atomová a molekulová fyzika, urychlovače

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2010

Kód důvěrnosti údajů

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

Název periodika

Nuclear Physics. A

ISSN

0375-9474

e-ISSN

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Svazek periodika

834

Číslo periodika v rámci svazku

1-4

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

3

Strana od-do

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Kód UT WoS článku

000275930800167

EID výsledku v databázi Scopus

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