A review claiming Weyl fermions have no propagator and that the standard Dirac-propagator substitution is logically flawed, with a Bardeen spectator-field method proposed as the correct alternative.
On the trace anomaly for Weyl fermions
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abstract
This note is a comment on some recent papers that have raised a controversy about the existence of the odd-parity trace anomaly in a four-dimensional theory of Weyl fermions. Without going into too technical details we explain why the methods employed in those papers cannot detect it.
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hep-th 1years
2026 1verdicts
REJECT 1representative citing papers
citing papers explorer
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A fermion primer
A review claiming Weyl fermions have no propagator and that the standard Dirac-propagator substitution is logically flawed, with a Bardeen spectator-field method proposed as the correct alternative.