Measurement of the 8Li(n,γ)9Li cross section at astrophysical energies by reverse kinematics

Details Measurement of the 8Li(n,γ)9Li cross section at astrophysical energies by reverse kinematics Measurement of the 8Li(n,γ)9Li cross section at astrophysical energies by reverse kinematics

Feb 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998phrvc..57..959z&link_type=abstract

Physical Review C (Nuclear Physics), Volume 57, Issue 2, February 1998, pp.959-966

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Big Bang Nucleosynthesis, Radiative Capture, Reactions Induced By Unstable Nuclei, Nucleosynthesis In Novae, Supernovae, And Other Explosive Environments

Scientific paper

We have made the first attempt at determining the 8Li(n,γ)9Li cross section at astrophysical energies. This reaction competes with the 8Li(α,n)11B reaction in the inhomogeneous big bang model and with 8Li β decay in the r process. It may affect the primordial abundance and the stellar production of A>12 nuclei. Using a radioactive beam of 9Li and the Coulomb dissociation method we attempted to measure the cross section of the inverse reaction 9Li(γ,n)8Li. We report only an upper limit because we were unable to determine and subtract the nuclear dissociation. Through the detailed balance theorem, this lead to an upper limit for the cross section of interest, 8Li(n,γ)9Li. The limit is 19+/-8 b for En = 0-500 keV or, when expressed as a reaction rate, 7200 cm3 s-1 mole-1.

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