Trace anomaly of Weyl fermions in the Breitenlohner--Maison scheme for ${\gamma }_{\ast }$

S. Abdallah, S. A Franchino-Viñas, M. B. Fröb

We revisit the conformal anomaly for a Weyl fermion in four dimensions that has generated some debate recently. We employ a perturbative expansion for the metric around Minkowski s…