Analysis of experimental data on 6Be three-particle decay

Alpha spectra are investigated from the decay of 6Be ground (0+) and excited (2+) states into three-particles. For data analysis an approach is suggested, where binary formalism (R-matrix theory, decomposition with respect to efficient radius) is used for description of each pair of decay particles, and third particle effect is modulated by two-particle amplitude. As a result experimental data on both berillium state decay may be successfully described, factors influencing spectral shape are defined