28 citations · 52 across the 5 of their papers we have counts for
5 papers
Cancellation of energy-divergences and renormalizability in Coulomb gauge QCD within the Lagrangian formalism
A. Niégawa, M. Inui, H. Kohyama
In Coulomb gauge QCD in the Lagrangian formalism, energy divergences arise in individual diagrams. We give a proof on cancellation of these divergences to all orders of perturbatio…
Renormalization in Coulomb-gauge QCD within the Lagrangian formalism
A. Niegawa
We study renormalization of Coulomb-gauge QCD within the Lagrangian second-order formalism. We derive a Ward identity and the Zinn-Justin equation, and, with the help of the latter…
Thermal Operator Representation of Finite-Temperature Amplitudes in the Presence of Chemical Potential
M. Inui, H. Kohyama, A. Niegawa
In a recent paper [Phys. Rev. D {\bf 72}, 085006 (2005)], Brandt {\em et al}. deduced the thermal operator representation for a thermal -point amplitude, both in the imaginary-t…
Self-energy-part resummed quark and gluon propagators in a spin-polarized quark matter and generalized Boltzmann equations
A. Niegawa
We construct perturbative frameworks for studying nonequilibrium spin-polarized quark matter. We employ the closed-time-path formalism and use the gradient approximation in the der…
Analytic Continuation of Thermal -Point Functions from Imaginary- to Real-Energies
R. Baier, A. Niegawa
We consider thermal -point Green functions in the framework of quantum field theory at finite temperature. We show how analytic continuations from imaginary to real energies rel…