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Transition of Collisionles Ion-Temperature-Gradient-Driven Plasma Turbulence: A Dynamical Systems Approach.

DE2005835931

Publication Date	2004
Personal Author	Kolesnikov, R. A.; Krommes, J. A.
Page Count	12
Abstract	Resummation of the chiral expansion is necessary to make accurate contact with current lattice simulation results of full QCD. Resummation techniques including relativistic formulations of chiral effective field theory and finite-range regularization (FRR) techniques are reviewed, with an emphasis on using lattice simulation results to constrain the parameters of the chiral expansion. We illustrate how the chiral extrapolation problem has been solved and use FRR techniques to identify the power-counting regime (PCR) of chiral perturbation theory. To fourth-order in the expansion at the 1% tolerance level, we find 0 (le) m(sub (pi)) (le) 0.18 GeV for the PCR, extending only a small distance beyond the physical pion mass.
Keywords	Plasma Turbulence Excitation Collisionless plasmas Zonal flows Degrees of freedom
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Princeton Univ., NJ. Plasma Physics Lab.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200518

Transition of Collisionles Ion-Temperature-Gradient-Driven Plasma Turbulence: A Dynamical Systems Approach.

Transition of Collisionles Ion-Temperature-Gradient-Driven Plasma Turbulence: A Dynamical Systems Approach.
DE2005835931

Publication Date	2004
Personal Author	Kolesnikov, R. A.; Krommes, J. A.
Page Count	12
Abstract	Resummation of the chiral expansion is necessary to make accurate contact with current lattice simulation results of full QCD. Resummation techniques including relativistic formulations of chiral effective field theory and finite-range regularization (FRR) techniques are reviewed, with an emphasis on using lattice simulation results to constrain the parameters of the chiral expansion. We illustrate how the chiral extrapolation problem has been solved and use FRR techniques to identify the power-counting regime (PCR) of chiral perturbation theory. To fourth-order in the expansion at the 1% tolerance level, we find 0 (le) m(sub (pi)) (le) 0.18 GeV for the PCR, extending only a small distance beyond the physical pion mass.
Keywords	Plasma Turbulence Excitation Collisionless plasmas Zonal flows Degrees of freedom
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Princeton Univ., NJ. Plasma Physics Lab.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200518