Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005omeg.conf..155n&link_type=abstract
ORIGIN OF MATTER AND EVOLUTION OF GALAXIES 2003. Held 17-19 November 2003 in RIKEN, Wako, Saitama, Japan. Edited by M Terasawa,
Astronomy and Astrophysics
Astronomy
Scientific paper
The neutron capture reaction on 14C leading to the 15C ground state, which is important in the nucleo-synthesis processes in the universe, has been studied by using the Coulomb dissociation of 15C on a Pb target at 68 MeV/nucleon. The dissociation cross sections at large impact parameters over 20 fm has been translated into the energy spectrum of the neutron capture by using the principle of the detailed balance. The energy spectrum shows the typical p-wave capture characteristics, which is understood by the fact that the ground state of 15C is a loosely bound halo state. The present study suggests that such a p-wave neutron capture may often occur at the very neutron rich regions, where important nucleo-synthesis paths are expected.
Fukuda Naoya
Nakamura Takashi
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