Central exclusive production at the Tevatron

Details Central exclusive production at the Tevatron Central exclusive production at the Tevatron

2008-12-02

arxiv.org/abs/0812.0612v1

AIP Conf.Proc.1105:3-6,2009

Physics

High Energy Physics

High Energy Physics - Experiment

5 pages, 2 figures, talk at DIFF 2008 and ISMD08

Scientific paper

10.1063/1.3122222

In CDF we have observed several exclusive processes: 2-photon --> e+e- and --> mu+mu-, photon+pomeron --> J/psi and psi(2S), and pomeron+pomeron --> chi_c. The cross sections agree with QED, HERA photoproduction data, and theoretical estimates of gg --> chi_c with another gluon exchanged to screen the color. This observation of exclusive chi_c, together with earlier observations of exclusive dijets and exclusive 2-photon candidates, support some theoretical predictions for p+p --> p+H+p at the LHC. Exclusive dileptons offer the best means of precisely calibrating forward proton spectrometers.

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