Asymptotic normalization coefficients from the Ne-20(He-3, d)Na-21 reaction and astrophysical factor for Ne-20(p,gamma)Na-21

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F06%3A00032224" target="_blank" >RIV/61389005:_____/06:00032224 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Asymptotic normalization coefficients from the Ne-20(He-3, d)Na-21 reaction and astrophysical factor for Ne-20(p,gamma)Na-21

Original language description

The Ne-20(p,gamma)Na-21 reaction rate at stellar energies is dominated by capture to the ground state through the tail of a subthreshold resonance state at an excitation energy of 2425 keV in Na-21. Both resonant and direct capture contribute to the reaction rate while direct captures to other bound states are negligible. The overall normalization of direct capture to the subthreshold state is determined by the asymptotic normalization coefficient (ANC). Simultaneously this ANC determines the proton partial width of the subthreshold resonance state. To determine the ANC, the Ne-20(He-3,d)Na-21 proton transfer reaction has been measured, at an incident energy of 25.83 MeV. Angular distributions for proton transfer to the ground and first three excited states were measured, and ANCs were then extracted from comparison with distorted-wave Born approximation calculations. Using these ANCs, we calculated the astrophysical factor for Ne-20(p,gamma)Na-21.

Czech name

Asymptotické normalizační koeficienty z reakce 20Ne(3He, d)21Na a astrofyzikální faktor pro 20Ne(p, gamma)21Na

Czech description

Z naměřených úhlových rozložení byly pomocí výpočtů DWBA určeny ANC. Analýza potvrdila, že je důležitý pouze rezonanční a nerezonanční záchyt jdoucí přes podprahový stav 2 425 keV v 21Na.

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BG - Nuclear, atomic and molecular physics, accelerators

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2006

Confidentiality

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

Name of the periodical

Physical Review. C

ISSN

0556-2813

e-ISSN

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Volume of the periodical

73

Issue of the periodical within the volume

3

Country of publishing house

US - UNITED STATES

Number of pages

1

Pages from-to

035806

UT code for WoS article

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EID of the result in the Scopus database

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