Study of Be-7+d reactions for standard big bang nucleosynthesis

C  Angulo; E  Casarejos; A  Coc; T  Davinson; N  Achouri; D  Cortina-Gil; M  Couder; P  Figuera; B  Fulton; J  Kiener; P  Leleux; I  Mukha; A S  Murphy; A  Ninane; N  Orr; V  Tatischeff; F  Vanderbist

doi:10.1016/j.nuclphysa.2005.05.192

Study of Be-7+d reactions for standard big bang nucleosynthesis

C Angulo, E Casarejos, A Coc, T Davinson, N Achouri, D Cortina-Gil, M Couder, P Figuera, B Fulton, J Kiener, P Leleux, I Mukha, A S Murphy, A Ninane, N Orr, V Tatischeff, F Vanderbist

Research output: Contribution to journal › Article › peer-review

Abstract

The recent WMAP results tightly constrain the baryon density in the universe, which in turn constrains the light element abundance predicted in Standard Big Bang Nucleosynthesis (SBBN). There is a discrepance in the Li-7 abundance which cannot be explained by uncertainties in the main reactions included in the SBBN. Up to now, the influence of the reaction Be-7(d,p)2 alpha has been neglected. We have investigated this reaction at SBBN energies using a radioactive Be-7 beam and a (CD2)(n) self-supporting target at the CYCLONE RIB facility at Louvain-la-Neuve. The experimental method is briefly described. Preliminary results and consequences for primordial nucleosynthesis are discussed.

Original language	English
Pages (from-to)	775C-778C
Number of pages	4
Journal	Nuclear Physics A
Volume	758
DOIs	https://doi.org/10.1016/j.nuclphysa.2005.05.192
Publication status	Published - 25 Jul 2005

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10.1016/j.nuclphysa.2005.05.192

Cite this

Angulo, C., Casarejos, E., Coc, A., Davinson, T., Achouri, N., Cortina-Gil, D., Couder, M., Figuera, P., Fulton, B., Kiener, J., Leleux, P., Mukha, I., Murphy, A. S., Ninane, A., Orr, N., Tatischeff, V., & Vanderbist, F. (2005). Study of Be-7+d reactions for standard big bang nucleosynthesis. Nuclear Physics A, 758, 775C-778C. https://doi.org/10.1016/j.nuclphysa.2005.05.192

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abstract = "The recent WMAP results tightly constrain the baryon density in the universe, which in turn constrains the light element abundance predicted in Standard Big Bang Nucleosynthesis (SBBN). There is a discrepance in the Li-7 abundance which cannot be explained by uncertainties in the main reactions included in the SBBN. Up to now, the influence of the reaction Be-7(d,p)2 alpha has been neglected. We have investigated this reaction at SBBN energies using a radioactive Be-7 beam and a (CD2)(n) self-supporting target at the CYCLONE RIB facility at Louvain-la-Neuve. The experimental method is briefly described. Preliminary results and consequences for primordial nucleosynthesis are discussed.",

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doi = "10.1016/j.nuclphysa.2005.05.192",

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T1 - Study of Be-7+d reactions for standard big bang nucleosynthesis

AU - Angulo, C

AU - Casarejos, E

AU - Coc, A

AU - Davinson, T

AU - Achouri, N

AU - Cortina-Gil, D

AU - Couder, M

AU - Figuera, P

AU - Fulton, B

AU - Kiener, J

AU - Leleux, P

AU - Mukha, I

AU - Murphy, A S

AU - Ninane, A

AU - Orr, N

AU - Tatischeff, V

AU - Vanderbist, F

PY - 2005/7/25

Y1 - 2005/7/25

N2 - The recent WMAP results tightly constrain the baryon density in the universe, which in turn constrains the light element abundance predicted in Standard Big Bang Nucleosynthesis (SBBN). There is a discrepance in the Li-7 abundance which cannot be explained by uncertainties in the main reactions included in the SBBN. Up to now, the influence of the reaction Be-7(d,p)2 alpha has been neglected. We have investigated this reaction at SBBN energies using a radioactive Be-7 beam and a (CD2)(n) self-supporting target at the CYCLONE RIB facility at Louvain-la-Neuve. The experimental method is briefly described. Preliminary results and consequences for primordial nucleosynthesis are discussed.

AB - The recent WMAP results tightly constrain the baryon density in the universe, which in turn constrains the light element abundance predicted in Standard Big Bang Nucleosynthesis (SBBN). There is a discrepance in the Li-7 abundance which cannot be explained by uncertainties in the main reactions included in the SBBN. Up to now, the influence of the reaction Be-7(d,p)2 alpha has been neglected. We have investigated this reaction at SBBN energies using a radioactive Be-7 beam and a (CD2)(n) self-supporting target at the CYCLONE RIB facility at Louvain-la-Neuve. The experimental method is briefly described. Preliminary results and consequences for primordial nucleosynthesis are discussed.

U2 - 10.1016/j.nuclphysa.2005.05.192

DO - 10.1016/j.nuclphysa.2005.05.192

M3 - Article

SN - 0375-9474

VL - 758

SP - 775C-778C

JO - Nuclear Physics A

JF - Nuclear Physics A

ER -