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arxiv: 1607.06552 · v1 · submitted 2016-07-22 · ✦ hep-ph · hep-th

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Heavy axion in asymptotically safe QCD

Archil Kobakhidze
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classification ✦ hep-ph hep-th
keywords asymptoticallyaxionargueassumingbehaviourcasecontributionconventional
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Assuming QCD exhibits an interacting fixed-point behaviour in the ultraviolet regime, I argue that the axion can be substantially heavier than in the conventional case of asymptotically free QCD due to the enhanced contribution of small size instantons to its mass.

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  1. The structure of multi-axion solutions to the strong CP problem

    hep-ph 2026-05 unverdicted novelty 6.0

    Multi-axion theories solving the strong CP problem produce varied mass-coupling relations via a general sum rule that depends on the details of PQ symmetry breaking and anomaly alignments.