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arXiv · 1905.08577

Isolated photon and photon+jet production at NNLO QCD accuracy and the ratio $R_{13/8}^\gamma$

X. Chen·T. Gehrmann·N. Glover·M. Höfer·A. Huss
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Abstract

We discuss different approaches to photon isolation in fixed-order calculations and present a new next-to-next-to-leading order (NNLO) QCD calculation of $R_{13/8}^\gamma$, the ratio of the inclusive isolated photon cross section at 8 TeV and 13 TeV, differential in the photon transverse momentum, which was recently measured by the ATLAS collaboration.

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X. Chen, T. Gehrmann, N. Glover, M. Höfer, A. Huss. 2019-05-21. Isolated photon and photon+jet production at NNLO QCD accuracy and the ratio $R_{13/8}^\gamma$. https://arxiv.org/abs/1905.08577

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