We have investigated the low‐energy states of 11N by the elastic scattering method in inverse kinematics using a 10C beam and a (CD2)n target. Recoil protons were detected at 16 laboratory angles θlab = 4.6° – 18.9° in a ΔE − E detector system. Using the R‐matrix method to analyse the 10C + p elastic cross sections, we found 11N to be unbound with respect to proton emission by 1.54±0.02 MeV with a decay width of 0.83±0.03. These results are used to calculate the two‐proton decay width of the 12O ground state.
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© 2006 American Institute of Physics.
2006
American Institute of Physics
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