We present the first general measurements (invariant-mass, transverse-energy, and angular distributions) of the process, (p) over bar p-->gamma+2 jets + X, using data collected by the CDF at Fermilab. We compare the data with predictions from a tree-level QCD calculation and the PYTHIA shower Monte Carlo program. Our data sample is particularly sensitive to contributions from initial-and final-state radiation of photons and jets. Using the PYTHIA Monte Carlo program, we contrast the kinematical distributions for direct photon production with those for initial-and final-state photon radiation (bremsstrahlung). Based on the angular distributions, we find that our data favor a mixture of bremsstrahlung and direct photon production, as predicted, over either process alone. [S0556-2821(97)01623-8].

F., A., H., A., A., A., M. G., A., S. R., A., D., A., et al. (1998). Properties of photon plus two-jet events in (p)over-bar-p collisions at root s=1.8 TeV. PHYSICAL REVIEW D, 57(1), 67-77 [10.1103/PhysRevD.57.67].

Properties of photon plus two-jet events in (p)over-bar-p collisions at root s=1.8 TeV

PAOLETTI, RICCARDO;TURINI, NICOLA;
1998

Abstract

We present the first general measurements (invariant-mass, transverse-energy, and angular distributions) of the process, (p) over bar p-->gamma+2 jets + X, using data collected by the CDF at Fermilab. We compare the data with predictions from a tree-level QCD calculation and the PYTHIA shower Monte Carlo program. Our data sample is particularly sensitive to contributions from initial-and final-state radiation of photons and jets. Using the PYTHIA Monte Carlo program, we contrast the kinematical distributions for direct photon production with those for initial-and final-state photon radiation (bremsstrahlung). Based on the angular distributions, we find that our data favor a mixture of bremsstrahlung and direct photon production, as predicted, over either process alone. [S0556-2821(97)01623-8].
F., A., H., A., A., A., M. G., A., S. R., A., D., A., et al. (1998). Properties of photon plus two-jet events in (p)over-bar-p collisions at root s=1.8 TeV. PHYSICAL REVIEW D, 57(1), 67-77 [10.1103/PhysRevD.57.67].
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11365/38953
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