QCD at the Tevatron: Status and Prospects

TL;DR

This paper reviews the current status of Quantum Chromodynamics (QCD) studies at the Tevatron, highlighting agreements and discrepancies between theory and experiment, and emphasizing the need for improved calculations and systematic understanding for future progress.

Contribution

It provides a comprehensive overview of Tevatron QCD results, identifying key areas of agreement and discrepancy, and discusses future prospects for theoretical and experimental improvements.

Findings

Good agreement between calculations and data in many areas.

Discrepancies occur with uncertain parton distributions and low momentum scales.

Future improvements depend on better understanding of systematic errors and uncertainties.

Abstract

I shall review the present status of Tevatron QCD studies, focusing on the production of jets, vector bosons, photons and heavy quarks. In general there is good agreement between the results of current calculational tools and the experimental data. The major areas of discrepancy arise when the input parton distributions become uncertain (for example, jets at high $E_T$) or when the momentum scales become relatively small (for example, $b$ production at low $p_T$). We can look forward to continued improvement in both calculations and measurements over the next decade. However, fully exploiting the power of the data will require considerable work, both from the experimentalists who must understand and publish all the systematic errors and their correlations, and from the phenomenologists who must understand the level of uncertainty in their calculations and in the parton distributions.