Measurement of forward $t\overline{t}$, $W+b\overline{b}$ and $W+c\overline{c}$ production in $pp$ collisions at $\sqrt{s}=8$ TeV

TL;DR

This paper reports measurements of top-antitop and W boson associated heavy-flavor jet production in forward proton-proton collisions at 8 TeV, confirming Standard Model predictions with high precision.

Contribution

It provides the first detailed measurements of these processes in the forward region at 8 TeV, using the LHCb detector, extending the understanding of heavy-flavor production.

Findings

Measured cross-sections agree with NLO Standard Model predictions.

First detailed measurements of these processes in the forward region at 8 TeV.

Results support the accuracy of current theoretical models.

Abstract

The production of $t\overline{t}$, $W+b\overline{b}$ and $W+c\overline{c}$ is studied in the forward region of proton-proton collisions collected at a centre-of-mass energy of 8 TeV by the LHCb experiment, corresponding to an integrated luminosity of 1.98 $\pm$ 0.02 $\mbox{fb}^{-1}$. The $W$ bosons are reconstructed in the decays $W\rightarrow\ell\nu$, where $\ell$ denotes muon or electron, while the $b$ and $c$ quarks are reconstructed as jets. All measured cross-sections are in agreement with next-to-leading-order Standard Model predictions.