A study of large transverse momentum direct photon plus away-side jet production using 500 GeV/c proton and {pi}{sup {minus}}
Thesis/Dissertation
·
OSTI ID:111272
This thesis presents the results from a study of the production of large transverse momentum direct photons and their away-side jets using 500 GeV/c proton and {pi}{sup {minus}} beams incident on a Be target. The data used in this analysis were taken during the 1987-88 fixed target run using the E706 spectrometer at Fermilab. The spectrometer, which triggered on a high transverse momentum electromagnetic deposition, consists of a finely segmented large acceptance liquid argon calorimeter and a large acceptance charged particle spectrometer. An algorithm has been developed to reconstruct the recoil jets associated with high transverse momentum direct protons and {pi}{sup 0} mesons. The structure of the events containing a high transverse momentum direct photon has been investigated and the results are compared with the predictions of ISAJET and PYTHIA Monte Carlo simulations. The differential cross sections for the production of direct photons plus their away-side jets have been measured as a function of the direct photon P{sub T} as well as a function of the recoil jet pseudorapidity. The beam dependence of the cross section has been investigated. The cross section results are compared with the predictions of leading log and next-to-leading log QCD calculations.
- Research Organization:
- Pittsburgh Univ., PA (United States)
- OSTI ID:
- 111272
- Country of Publication:
- United States
- Language:
- English
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