605 citations · 2k across the 39 of their papers we have counts for
5 papers · 1 filter
Chiral gauge theories and non-abelian analogues of axions
P. Mitra
The axion particle may or may not exist, but the axion field can be used, as shown here, in an explicitly local formulation of a chiral U(1) gauge theory with both classical and qu…
Peccei-Quinn-like symmetries for nonabelian axions
Debashis Chatterjee, P. Mitra
Axions were first introduced in connection with chiral symmetry but are now being looked for mainly as dark matter. In this paper we introduce a nonabelian analogue of axions which…
Strong CP: No Problem
P. Mitra
Detailed analysis shows that the phase of a complex mass term of a quark does not violate CP, while the QCD vacuum angle can naturally be set equal to zero. There is no strong CP p…
T invariance of Higgs interactions in the standard model
P. Mitra
In the standard model, the Cabibbo-Kobayashi-Maskawa matrix, which incorporates the time-reversal violation shown by the charged current weak interactions, originates from the Higg…
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…