NLO QCD corrections to tri-boson production

TL;DR

This paper calculates the next-to-leading order QCD corrections for triple vector boson production at the LHC, revealing significant increases in cross sections that are crucial for experimental analyses.

Contribution

It introduces a novel NLO QCD correction calculation for multiple triple vector boson processes using integrand-level reduction and dipole subtraction methods.

Findings

QCD corrections increase cross sections by 70-100%

Methods improve accuracy of theoretical predictions

Results are essential for LHC experimental studies

Abstract

We present a calculation of the NLO QCD corrections for the production of three vector bosons at the LHC, namely Z Z Z, W+ W- Z, W+ Z Z, and W+ W- W+ production. The virtual corrections are computed using the recently proposed method of reduction at the integrand level (OPP reduction). Concerning the contributions coming from real emission we used the dipole subtraction to treat the soft and collinear divergences. We find that the QCD corrections for these electroweak processes are in the range between 70 and 100 percent. As such they have to be considered in experimental studies of triple vector boson production at the LHC.