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On the chiral anomaly and the Yang–Mills gradient flow
There are currently two singularity-free universal expressions for the topological susceptibility in QCD, one based on the Yang–Mills gradient flow and the other on density-chain correlation functions. While the latter link the susceptibility to the anomalous chiral Ward identities, the gradient flo...
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| Lenguaje: | eng |
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2021
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| Acceso en línea: | https://dx.doi.org/10.1016/j.physletb.2021.136725 http://cds.cern.ch/record/2781475 |