Cross section measurements of the Big Bang nucleosynthesis reaction D(α,γ)6Li by Coulomb dissociation of 6Li

F. Hammache, D. Galaviz, K. Sümmerer, S. Typel, F. Attallah, M. Caamano, A. Coc, D. Cortina, H. Geissel, M. Hellström, N. Iwasa, J. Kiener, P. Koczon, B. Kohlmeyer, E. Schwab, K. Schwarz, F. Schümann, P. Senger, O. Sorlin, V. TatischeffJ. P. Thibaud, F. Uhlig, A. Wagner, A. Walus

研究成果: Conference contribution

抄録

The possibility that big-bang nucleosynthesis (BBN) may produce nontrivial amounts of 6Li is under study since the recent observations of this element in old halo stars. However, the interpretation of these observations needs a precise knowledge of the reaction rate of D(α, γ) 6Li which, at present, is extremely uncertain (a factor of 20) at the energies of astrophysical interest (Ecm ≤ 300 keV). This uncertainty originates from difficulties in both theoretical estimates and experimental determinations of the D(α, γ)6Li capture reaction cross section. New measurements of the cross section of D(α, γ)6Li reaction using Coulomb dissociation of 6Li at 150 A MeV have been performed recently at GSI. The results will be compared to previous measurements and theoretical calculations.

本文言語English
ホスト出版物のタイトルFrontiers in Nuclear Structure, Astrophysics, and Reactions - FINUSTAR
出版社American Institute of Physics Inc.
ページ21-25
ページ数5
ISBN(印刷版)0735403236, 9780735403239
DOI
出版ステータスPublished - 2006 4 26
外部発表はい
イベントInternational Conference on Frontiers in Nuclear Structure, Astrophysics, and Reactions - FINUSTAR - Isle of Kos, Greece
継続期間: 2005 9 122005 9 17

出版物シリーズ

名前AIP Conference Proceedings
831
ISSN(印刷版)0094-243X
ISSN(電子版)1551-7616

Other

OtherInternational Conference on Frontiers in Nuclear Structure, Astrophysics, and Reactions - FINUSTAR
国/地域Greece
CityIsle of Kos
Period05/9/1205/9/17

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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