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. Tatischeff; J. P. Thibaud; F. Uhlig; A. Wagner; A. Walus

doi:10.1063/1.2200893

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 proceeding › Conference 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 (E_cm ≤ 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 language	English
Title of host publication	Frontiers in Nuclear Structure, Astrophysics, and Reactions - FINUSTAR
Publisher	American Institute of Physics Inc.
Pages	21-25
Number of pages	5
ISBN (Print)	0735403236, 9780735403239
DOIs	https://doi.org/10.1063/1.2200893
Publication status	Published - 2006 Apr 26
Externally published	Yes
Event	International Conference on Frontiers in Nuclear Structure, Astrophysics, and Reactions - FINUSTAR - Isle of Kos, Greece Duration: 2005 Sept 12 → 2005 Sept 17

Publication series

Name	AIP Conference Proceedings
Volume	831
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Other

Other	International Conference on Frontiers in Nuclear Structure, Astrophysics, and Reactions - FINUSTAR
Country/Territory	Greece
City	Isle of Kos
Period	05/9/12 → 05/9/17

Keywords

Coulomb dissociation
Li
Primordial nucleosynthesis

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1063/1.2200893

Cite this

Hammache, F., Galaviz, D., Sümmerer, K., Typel, S., Attallah, F., Caamano, M., Coc, A., Cortina, D., Geissel, H., Hellström, M., Iwasa, N., Kiener, J., Koczon, P., Kohlmeyer, B., Schwab, E., Schwarz, K., Schümann, F., Senger, P., Sorlin, O., ... Walus, A. (2006). Cross section measurements of the Big Bang nucleosynthesis reaction D(α,γ)⁶Li by Coulomb dissociation of ⁶Li. In Frontiers in Nuclear Structure, Astrophysics, and Reactions - FINUSTAR (pp. 21-25). (AIP Conference Proceedings; Vol. 831). American Institute of Physics Inc.. https://doi.org/10.1063/1.2200893

Cross section measurements of the Big Bang nucleosynthesis reaction D(α,γ)⁶Li by Coulomb dissociation of ⁶Li. / Hammache, F.; Galaviz, D.; Sümmerer, K. et al.

Frontiers in Nuclear Structure, Astrophysics, and Reactions - FINUSTAR. American Institute of Physics Inc., 2006. p. 21-25 (AIP Conference Proceedings; Vol. 831).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Hammache, F, Galaviz, D, Sümmerer, K, Typel, S, Attallah, F, Caamano, M, Coc, A, Cortina, D, Geissel, H, Hellström, M, Iwasa, N, Kiener, J, Koczon, P, Kohlmeyer, B, Schwab, E, Schwarz, K, Schümann, F, Senger, P, Sorlin, O, Tatischeff, V, Thibaud, JP, Uhlig, F, Wagner, A & Walus, A 2006, Cross section measurements of the Big Bang nucleosynthesis reaction D(α,γ)⁶Li by Coulomb dissociation of ⁶Li. in Frontiers in Nuclear Structure, Astrophysics, and Reactions - FINUSTAR. AIP Conference Proceedings, vol. 831, American Institute of Physics Inc., pp. 21-25, International Conference on Frontiers in Nuclear Structure, Astrophysics, and Reactions - FINUSTAR, Isle of Kos, Greece, 05/9/12. https://doi.org/10.1063/1.2200893

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

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.",

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AU - Hammache, F.

AU - Galaviz, D.

AU - Sümmerer, K.

AU - Typel, S.

AU - Attallah, F.

AU - Caamano, M.

AU - Coc, A.

AU - Cortina, D.

AU - Geissel, H.

AU - Hellström, M.

AU - Iwasa, N.

AU - Kiener, J.

AU - Koczon, P.

AU - Kohlmeyer, B.

AU - Schwab, E.

AU - Schwarz, K.

AU - Schümann, F.

AU - Senger, P.

AU - Sorlin, O.

AU - Tatischeff, V.

AU - Thibaud, J. P.

AU - Uhlig, F.

AU - Wagner, A.

AU - Walus, A.

PY - 2006/4/26

Y1 - 2006/4/26

N2 - 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.

AB - 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.

KW - Coulomb dissociation

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KW - Primordial nucleosynthesis

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