With appropriate interpolating currents the mass spectrum of $0^{ --}$ oddball is obtained in the framework of QCD Sum Rules (QCDSR). We find there are two stable oddballs with masses of $3.81 \pm 0.12 \, \text{ GeV}$ and $4.33 \pm 0.13 \, \text{ GeV}$, and analyze their possible production and decay modes in experiments. Noticing that these $0^{ --}$ oddballs with unconventional quantum number are attainable in BESIII, BELLEII, PANDA, Super-B and LHCb experiments, we believe the long search elusive glueball could be measured shortly.
Categories: hep-ph hep-ex