Coulomb dissociation of 12N and 13O
The Coulomb breakup technique was applied to determine the E1 strength of excited levels in 12N and 13O, which dominate the low-energy cross sections of the 11C(p,γ)12N and 12N(p,γ)13O reactions, respectively. These reactions are important in the hot pp mode nuclear burning in hydrogen-rich massive objects . Under a high-temperature and high-density condition, these capture reactions become faster than the β + decay of 11C and 12N. However, these 11C(p,γ)12N and 12N(p,γ)13O reactions are difficult to study experimentally because the life times of 11C and 12N are too short to prepare them as targets.
PACS21.60.-n 25.40.Lw 25.70.Mn 35.60.-t
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