Search for new resonant states in C-10 and C-11 and their impact on the cosmological lithium problem

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F13%3A00424380" target="_blank" >RIV/61389005:_____/13:00424380 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1103/PhysRevC.88.062802" target="_blank" >http://dx.doi.org/10.1103/PhysRevC.88.062802</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevC.88.062802" target="_blank" >10.1103/PhysRevC.88.062802</a>

Result language

angličtina

Original language name

Search for new resonant states in C-10 and C-11 and their impact on the cosmological lithium problem

Original language description

The observed primordial Li-7 abundance in metal-poor halo stars is found to be lower than its Big-Bang nucleosynthesis (BBN) calculated value by a factor of approximately three. Some recent works suggested the possibility that this discrepancy originatesfrom missing resonant reactions which would destroy Be-7, parent of Li-7. The most promising candidate resonances which were found include a possibly missed 1(-) or 2(-) narrow state around 15 MeV in the compound nucleus C-10 formed by Be-7+He-3 and a state close to 7.8 MeV in the compound nucleus C-11 formed by Be-7+He-4. In this work, we studied the high excitation energy region of C-10 and the low excitation energy region in C-11 via the reactions B-10(He-3,t)C-10 and B-11(He-3,t)C-11, respectively,at the incident energy of 35 MeV. Our results for C-10 do not support Be-7+He-3 as a possible solution for the Li-7 problem. Concerning C-11 results, the data show no new resonances in the excitation energy region of interest and this ex

Czech name

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Czech description

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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

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2013

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

88

Issue of the periodical within the volume

6

Country of publishing house

US - UNITED STATES

Number of pages

5

Pages from-to

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UT code for WoS article

000328582400001

EID of the result in the Scopus database

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