Central exclusive production at the Tevatron
Michael G. Albrow
TL;DR
This paper reports observations of various exclusive processes at the Tevatron, confirming theoretical predictions and supporting future studies of exclusive Higgs production at the LHC, with implications for calibrating proton spectrometers.
Contribution
First observation of exclusive chi_c production at the Tevatron, validating models of exclusive processes and aiding future LHC experiments.
Findings
Cross sections agree with QED and photoproduction data
Observation of exclusive chi_c supports theoretical models
Results aid calibration of forward proton spectrometers
Abstract
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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