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arXiv · 1708.06683

Recent developments on parton-to-photon fragmentation functions

Tom Kaufmann·Asmita Mukherjee·Werner Vogelsang
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Abstract

We report on some recent developments concerning parton-to-photon fragmentation functions. We briefly summarize the main theoretical concepts on which the currently available extractions of these fragmentation functions rely: evolution and the vector meson dominance model. We present comparisons of the available sets. We argue that the single-inclusive photon production process $pp\to\gamma X$ possesses only little sensitivity to the fragmentation contribution. Instead, the semi-inclusive process $pp\to(\text{jet}\,\gamma)X$, for which the photon is observed inside a fully reconstructed jet and is part of the jet, is shown to offer much potential for providing valuable new information.

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Tom Kaufmann, Asmita Mukherjee, Werner Vogelsang. 2017-08-22. Recent developments on parton-to-photon fragmentation functions. https://arxiv.org/abs/1708.06683

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