The characteristics of the ${}^{12}\mathrm{O}$ resonant ground state are investigated through the analysis of the experimental data for the two-proton decay process. The sequential and simultaneous two-proton emission decay modes have been considered in a statistical calculation of the decay energy distribution. The resonant structures of ${}^{11}\mathrm{N}$ have been employed as intermediate states for the sequential mode, having their parameters determined by considering the structure of single particle resonance in quantum scattering problem. The width of the ${}^{12}\mathrm{O}$ resonant ground state has been extracted from a best fit to the experimental data. The contributions from the different channels to the decay energy distribution have been evaluated, and width and peak location parameters of the ${}^{12}\mathrm{O}$ resonant ground state are compared with results of other works for the sequential and simultaneous two-proton decay modes.

• Received 23 June 2008

DOI:https://doi.org/10.1103/PhysRevC.80.014606