出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：The neutron capture cross section of 14C has been shown to be important for several neutron driven
nucleosynthesis scenarios. Due to the high neutron abundance it is expected that the 14C(n,g )
reaction competes strongly with other neutron-induced reactions on 14C. The 14C(n,g ) reaction is
also important to validate (n,g ) cross sections obtained via the inverse reaction by the Coulomb
breakup method. In principle, 14C belongs to the few cases where this correspondence can be
validated in a convincingly clean way. So far, the example of 14C is obscured, however, by
discrepancies between several experiments and theory. In this contribution we report on a reanalysis
of the direct measurements of the 14C(n,g ) reaction presented on the last NIC conference
(Vancouver, 2004). The neutron energies used during the experiment ranged from 30 to 800 keV.
The earlier presented disagreement between the direct measurements and the Coulomb breakup
method has been resolved.
