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Bootstrapping the Chiral Anomaly at Large $N_c$

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arxiv 2307.04729 v2 pith:MBZHG67O submitted 2023-07-10 hep-th hep-lathep-ph

Teng Ma , Alex Pomarol , Francesco Sciotti This is my paper
classification hep-thhep-lathep-ph
keywords amplitudesanomalychiralboundconsistencygaugelargescattering
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

The bootstrap approach (demanding consistency conditions to scattering amplitudes) has shown to be quite powerful to tightly constrain gauge theories at large $N_c$. We extend previous analysis to scattering amplitudes involving pions and external gauge bosons. These amplitudes allow us to access the chiral anomaly and connect low-energy physical quantities to UV properties of the theory. In particular, we are able to obtain an analytic bound on the chiral anomaly coefficient as a function of the pion dipole polarizabilities. This bound can be useful for holographic models whose dual UV completions are not known, and provide a consistency condition to lattice simulations.

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Cited by 13 Pith papers

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