Photodisintegration of deuterium and big bang nucleosynthesis

Details Photodisintegration of deuterium and big bang nucleosynthesis Photodisintegration of deuterium and big bang nucleosynthesis

Oct 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003phrvd..68g2001h&link_type=abstract

Physical Review D, vol. 68, Issue 7, id. 072001

Physics

14

Photonuclear Reactions, Big Bang Nucleosynthesis, Solar Neutrinos, A<=5

Scientific paper

Photodisintegration cross sections were measured for deuterium with Laser-Compton scattering γ beams at seven energies near threshold. Combined with the preceding data, R(E)=Naσv for the p(n,γ)D reaction is for the first time evaluated based on experimental data with 6% uncertainty in the energy region relevant to the big bang nucleosynthesis (BBN). The result confirms the theoretical evaluation on which the BBN in the precision era relies.

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