Speaker
Antonio Gioiosa
(LE)
Description
We present new CDF data on exclusive K+ K- and p-pbar production. Data were taken at sqrt(s) = 1960 GeV and 900 GeV in low pile-up conditions. Events were selected with exactly two well-measured central tracks with PT > 300 MeV/c and |eta| < 0.8 and no evidence for other particles (including calorimeter clusters) in the range -5.3 < eta < +5.3, signifying two rapidity gaps exceeding Delta-eta = 4.5. These events should be dominated by double pomeron exchange, with a central state having IG JPC = 0+ (even)++. Kaons and (anti-)protons were identified using a barrel of time-of-flight scintillation counters.
Primary author
Antonio Gioiosa
(LE)
