Using a sample of Formula omitted events collected with the BESIII detector, we perform a study of Formula omitted. X(2370) is observed in the Formula omitted invariant-mass distribution with a statistical significance of Formula omitted. Its resonance parameters are measured to be Formula omitted and Formula omitted. The product branching fractions for Formula omitted and Formula omitted are determined to be Formula omitted and Formula omitted, respectively. No evident signal for X(2120) is observed in the Formula omitted invariant-mass distribution. The upper limits for the product branching fractions of Formula omitted and Formula omitted are determined to be Formula omitted and Formula omitted at the 90% confidence level, respectively.