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arXiv · 2211.11780

Stabilizing BFKL via heavy-flavor and NRQCD fragmentation

Francesco Giovanni Celiberto
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Abstract

We bring evidence that the recently discovered property of natural stability of the high-energy resummation is directly connected to the fragmentation mechanism of heavy hadrons. As a phenomenological support, we provide predictions for differential distributions sensitive to heavy-hadron tags, calculated at the next-to-leading logarithmic level of the hybrid high-energy/collinear factorization (NLL/NLO), as implemented in the JETHAD multimodular code. We show that the stabilizing mechanism is encoded in gluon channels of both heavy-flavor collinear fragmentation functions extracted from data and the ones evolved from a non-relativistic QCD input.

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Francesco Giovanni Celiberto. 2022-11-21. Stabilizing BFKL via heavy-flavor and NRQCD fragmentation. https://arxiv.org/abs/2211.11780

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