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We evaluate differential distributions for exclusive scalar $f_0(1500)$ meson(glueball candidate) production. Both QCD diffractive, pion-pion meson exchangecurrent (MEC) components as well as double-diffractive mechanism withintermediate pionic loop are calculated. The pion-pion component, which can bereliably calculated, dominates close to the threshold while the diffractivecomponent may take over only for larger energies. At the moment only upperlimit for the QCD-diffractive component can be obtained. The diffractivecomponent is calculated based on the Khoze-Martin-Ryskin approach proposed fordiffractive Higgs boson production. Different unintegrated gluon distributionfunctions (UGDFs) from the literature are used. Rather large cross sections(due to pion-pion fusion) are predicted for PANDA energies, where the gluonicmechanism is shown to be negligible.

Exclusive scalar $f_0(1500)$ meson production