Azimuthal asymmetries in QCD hard scattering: infrared safe but divergent

@article{Catani2017AzimuthalAI,
  title={Azimuthal asymmetries in QCD hard scattering: infrared safe but divergent},
  author={S. Catani and M. Grazzini and H. Sargsyan},
  journal={Journal of High Energy Physics},
  year={2017},
  volume={2017},
  pages={1-49}
}
  • S. Catani, M. Grazzini, H. Sargsyan
  • Published 2017
  • Physics
  • Journal of High Energy Physics
  • A bstractWe consider high-mass systems of two or more particles that are produced by QCD hard scattering in hadronic collisions. We examine the azimuthal correlations between the system and one of its particles. We point out that the perturbative QCD computation of such azimuthal correlations and asymmetries can lead to divergent results at fixed perturbative orders. The fixed-order divergences affect basic (and infrared safe) quantities such as the total cross section at fixed (and arbitrary… CONTINUE READING
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