Eur. Phys. J. C (2012) 72: 2024
https://doi.org/10.1140/epjc/s10052-012-2024-z
https://doi.org/10.1140/epjc/s10052-012-2024-z
Regular Article - Theoretical Physics
Zeta function regularization, anomaly and complex mass term
Saha Institute of Nuclear Physics, Calcutta, 700064, India
* e-mail: parthasarathi.mitra@saha.ac.in
Received:
16
April
2012
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
