1103.0846 (P. Mitra)

Zeta function regularization, anomaly and complex mass term    [PDF]

P. Mitra

If the zeta function regularization is used and a complex mass term considered for fermions, the phase does not appear in the fermion determinant. This is not a drawback of the regularization, which can recognize the phase through source terms, as demonstrated by the anomaly equation which is explicitly derived here for a complex mass term.

View original: http://arxiv.org/abs/1103.0846