Multiple Jet Production at Low Transverse Energies in p-pbar Collisions at Root(s) = 1.8 TeV

TL;DR

This paper compares experimental data on multiple jet production in proton-antiproton collisions at 1.8 TeV with various QCD models, finding that parton-shower simulations match the data better than next-to-leading order calculations.

Contribution

It provides a detailed comparison of experimental jet production data with different QCD theoretical models at low transverse energies.

Findings

Parton-shower models accurately describe the data.

Next-to-leading order calculations poorly fit the data.

Multiple jet distributions are well modeled by shower approximations.

Abstract

We present data on multiple production of jets with transverse energies near 20 GeV in p-pbar collisions at Root(s) = 1.8 TeV. QCD calculations in the parton-shower approximation of PYTHIA and HERWIG and the next-to-leading order approximation of JETRAD are compared to the data for one, two, three, and four jet inclusive production. Transverse energy spectra and multiple jet angular and summed transverse-energy distributions are adequately described by the shower approximation while next-to-leading order calculations describe the data poorly.