Heavy Quark Production at the Tevatron

TL;DR

This paper reports on heavy quark production measurements at the Tevatron, highlighting discrepancies in jet shapes and confirming theoretical predictions for production cross sections, with implications for QCD models.

Contribution

It provides new experimental data on b-jet shapes and cross sections, and compares these results with various theoretical models, identifying MC@NLO + JIMMY as the best fit.

Findings

b-jet shapes are broader than predictions

psi(2S) production cross section aligns with previous results

b-jet production cross section matches theory over six orders of magnitude

Abstract

Results are presented from four CDF analyses involving heavy quark production in proton-antiproton collisions at center of mass energy 1.96 TeV. The shapes of b-jets are found to be broader than inclusive predictions and broader than both PYTHIA and HERWIG defaults. A measurement of the production cross section for psi(2S) is consistent with Run 1 results and with theoretical predictions associated with parton distribution function energy dependence. The inclusive b-jet production cross section is also consistent with theoretical predictions over six orders of magnitude. The b-bbar differential production cross section is compared to several theoretical models and found to be best described by MC@NLO + JIMMY.