Regular Article - Theoretical Physics
Zeta function regularization, anomaly and complex mass term
Saha Institute of Nuclear Physics, Calcutta, 700064, India
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Revised: 26 April 2012
Published online: 31 May 2012
If 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.
© Springer-Verlag / Società Italiana di Fisica, 2012