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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish
Title of host publicationFrontiers in Nuclear Structure, Astrophysics, and Reactions - FINUSTAR
PublisherAmerican Institute of Physics Inc.
Pages21-25
Number of pages5
ISBN (Print)0735403236, 9780735403239
DOIs
Publication statusPublished - 2006 Apr 26
Externally publishedYes
EventInternational Conference on Frontiers in Nuclear Structure, Astrophysics, and Reactions - FINUSTAR - Isle of Kos, Greece
Duration: 2005 Sep 122005 Sep 17

Publication series

NameAIP Conference Proceedings
Volume831
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

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

Keywords

  • Coulomb dissociation
  • Li
  • Primordial nucleosynthesis

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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