Search Results - "Niégawa, A"

Comment on “Infrared and pinching singularities in out of equilibrium QCD plasmas” by Niégawa, A.

“…Analyzing the dilepton production from out of equilibrium quark-gluon plasma, Le Bellac and Mabilat have recently pointed out that, in the reaction rate, the…”
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Analytic continuation of thermal N-point functions from imaginary to real energies by Baier, R, Niégawa, A

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Production rate of hard thermal photons and screening of quark mass singularity by Baier, R., Nakkagawa, H., Niégawa, A., Redlich, K.

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Self-energy-part resummed quark and gluon propagators in a spin-polarized quark matter and generalized Boltzmann equations by Niégawa, A.

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Gauge-boson propagator in out of equilibrium quantum-field system and the Boltzmann equation by Niégawa, A.

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Out of equilibrium O ( N ) linear-sigma system: Construction of perturbation theory with gap and Boltzmann equations by Niégawa, A.

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Renormalization of number density in nonequilibrium quantum-field theory and absence of pinch singularities by Niégawa, A.

“…Through introducing a notion of renormalization of particle-number density, a simple perturbation scheme of nonequilibrium quantum-field theory is proposed. In…”
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Screening of mass singularities and finite soft-photon production rate in hot QCD by Niégawa, A.

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Comment on “Infrared and pinching singularities in out of equilibrium QCD plasmas” by Niégawa, A.

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Is the "heavy quark damping rate puzzle" in hot QCD really a puzzle? by Niegawa, A.

“…Within the framework of perturbative resummation scheme of Pisarski and Braaten, the decay or damping rate of a moving heavy quark (muon) to leading order in…”
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Quantum Field Theories in Nonextensive Tsallis Statistics by Kohyama, H., Niegawa, A.

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Cancellation of mass singularities in thermal reaction rates by NIEGAWA, A

“…Thermal amplitudes exhibit mass singularities when particle(s) with vanishing mass is (are) involved. We show that such singularities do not appear in the…”
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A Slavnov-Taylor identity and equality of damping rates for static transverse and longitudinal gluons in hot QCD by Dirks, M., Niégawa, A., Okano, K.

“…A Slavnov-Taylor identity is derived for the gluon polarization tensor in hot QCD. We evaluate its implications for damping of gluonic modes in the plasma…”
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Ground-state energy for a one-dimensional system of charged bosons by CRAIG, T. W, KIANG, D, NIEGAWA, A

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Renormalization in Coulomb-gauge QCD within the Lagrangian formalism by Niégawa, A.

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Improvement of the hot QCD pressure by the minimal sensitivity criterion by INUI, Masahiro, NIEGAWA, Akira, OZAKI, Hideaki

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Thermodynamic properties of a one-dimensional system of charged bosons by Craig, TW, Kiang, D, Niégawa, A

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Perturbative QCD at Finite Temperature and Density by Niégawa, Akira

“…This is a comprehensive review on the perturbative hot QCD including the recent developments. The main body of the review is concentrated upon dealing with…”
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Finite-temperature reaction-rate formula: Finite-volume system, detailed balance, T → 0 limit, and cutting rules by Niégawa, A.

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Self-consistent determination of hard modes in hot QCD by Niégawa, A.

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