Candidates for the 5 Condensed State in Ne

We conducted the coincidence measurement of α particles inelastically scattered from $^{20}$Ne at 0° and decay charged particles in order to search for the alpha-particle condensed state. We compared the measured excitation-energy spectrum and decay branching ratio with the statistical-decay-model calculations, and found that the newly observed states at Ex=23.6, 21.8, and 21.2 MeV in $^{20}$Ne are strongly coupled to a candidate for the 4α condensed state in $^{16}$O. This result presents the first strong evidence that these states are the candidates for the 5α condensed state.