Mass distribution
The D+sπ0 mass distribution for the decay D+s → K+K-π+ (a) and the decay D+s → K+K-π+π0 (b) clearly show the new narrow particle state near 2.32 GeV/c2.
International Journal of High-Energy Physics
The D+sπ0 mass distribution for the decay D+s → K+K-π+ (a) and the decay D+s → K+K-π+π0 (b) clearly show the new narrow particle state near 2.32 GeV/c2.