Measurement of the $W+b$-jet and $W+c$-jet differential production cross sections in $p\bar{p}$ collisions at $\sqrt{s}=1.96$ TeV

TL;DR

This paper reports measurements of the differential production cross sections for W bosons with b and c jets in proton-antiproton collisions at 1.96 TeV, providing data to test QCD predictions.

Contribution

First measurement of W+b and W+c jet differential cross sections at Tevatron energies, comparing experimental data with QCD calculations and Monte Carlo models.

Findings

Measured cross sections as a function of jet transverse momentum

Data agree with some QCD predictions within uncertainties

Provides benchmarks for heavy-flavor jet production models

Abstract

We present a measurement of the cross sections for the associated production of a $W$ boson with at least one heavy quark jet, $b$ or $c$, in proton-antiproton collisions. Data corresponding to an integrated luminosity of 8.7 fb$^{-1}$ recorded with the D0 detector at the Fermilab Tevatron \ppbar Collider at $\sqrt{s}=1.96$ TeV are used to measure the cross sections differentially as a function of the jet transverse momenta in the range 20 to 150 GeV. These results are compared to calculations of perturbative QCD theory as well as predictions from Monte Carlo generators.