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

被引：0

作者：

Hammache, F. ^{[1
]}

Galaviz, D. ^{[1
]}

Suemmerer, K. ^{[1
]}

Typel, S. ^{[1
]}

Attallah, F. ^{[1
]}

Caamano, M. ^{[1
]}

Coc, A. ^{[1
]}

Cortina, D. ^{[1
]}

Geissel, H. ^{[1
]}

Hellstrom, M. ^{[1
]}

Iwasa, N. ^{[1
]}

Kiener, J. ^{[1
]}

Koczon, P. ^{[1
]}

Kohlmeyer, B. ^{[1
]}

Schwab, E. ^{[1
]}

Schwarz, K. ^{[1
]}

Schdmann, F. ^{[1
]}

Senger, P. ^{[1
]}

Sorlin, O. ^{[1
]}

Tatischeff, V. ^{[1
]}

Thibaud, J. P. ^{[1
]}

Uhlig, F. ^{[1
]}

Wagner, A. ^{[1
]}

Walus, A. ^{[1
]}

机构：

[1] Univ Paris 11, Inst Phys Nucl, IN2P3, F-91406 Orsay, France

来源：

FRONTIERS IN NUCLEAR STRUCTURE ASTROPHYSICS, AND REACTIONS: FINUSTAR | 2006年 / 831卷

关键词：

primordial nucleosynthesis; Li-6; Coulomb dissociation;

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The possibility that big-bang nucleosynthesis (BBN) may produce nontrivial amounts of Li-6 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(alpha,gamma)(6) Li 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(alpha,gamma)Li-6 capture reaction cross section. New measurements of the cross section of D(alpha,gamma)Li-6 reaction using Coulomb dissociation of Li-6 at 150 A MeV have been performed recently at GSI. The results will be compared to previous measurements and theoretical calculations.

引用

页码：21 / +

页数：2

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