Central exclusive production at the Tevatron

Understand

The Collider Detector at Fermilab, CDF, observed for the first time in hadron-hadron collisions photon-photon to e+e- and mu+mu-, photon-pomeron to J/psi and psi(2S), and pomeron-pomeron to photon+photon and to chi_c.

• Exclusive pi+pi- production by double pomeron exchange was also measured at p+pbar CM energies 900 GeV and 1960 GeV, showing f0 and f2 resonance structures.