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Isolated photons in perturbative QCD

S. Frixione
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Abstract

I present a definition of the cross section for the production of an isolated photon plus $n$ jets which only depends upon direct photon production, and it is independent of the parton-to-photon fragmentation contribution. This prescription, based on a modified cone approach which implements the isolation condition in a smooth way, treats in the same way quarks and gluons and can be directly applied to experimental data in hadron-hadron, photon-hadron and $\epem$ collisions. The case of several, isolated photons in the final state can also be dealt with in the very same way.

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S. Frixione. 1998-01-29. Isolated photons in perturbative QCD. https://doi.org/10.1016/s0370-2693(98)00454-7

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