16 citations · 22 across the 9 of their papers we have counts for
9 papers
U(1) Problem Revisited
H. Banerjee, Gautam Bhattacharya
In the anomaly equation for the singlet axial current the chiral limit of the quark mass term does not vanish but comprises contribution from fermion zero modes whose integral exac…
Is there still a strong CP problem?
H. Banerjee, D. Chatterjee, P. Mitra
The role of a chiral U(1) phase in the quark mass in QCD is analysed from first principles. In operator formulation, there is a parity symmetry and the phase can be removed by a ch…
Fermion decoupling and the Axial Anomaly on the Lattice
H. Banerjee, Asit K. De
In the axial Ward identity of lattice QED we show that in the limit of infinite fermion mass m the pseudoscalar density term exactly cancels the Adler-Bell-Jackiw anomaly. Using th…
Chiral Anomalies In Field Theories
H. Banerjee
The role of the contribution from the fermion mass term in the axial vector Ward identity in generating the U(1) axial anomaly, both local and global, is elucidated. Gauge invarian…
Fermion decoupling and the axial anomaly on the lattice
H. Banerjee, Asit K. De
By an explicit calculation of the continuum limit of the triangle graph amplitude in lattice QED we show that in the axial Ward identity the ABJ anomaly exactly cancels the pseudos…
Lattice Fermions and the Chiral Anomaly
H. Banerjee, Asit K. De
We show in the Wilson model that the contribution of the regular mass term to the four-divergence of the axial vector current in weak coupling perturbation theory is not zero in th…