Temperature dependence of instantons in QCD

Details Temperature dependence of instantons in QCD Temperature dependence of instantons in QCD

1997-12-19

arxiv.org/abs/hep-lat/9712023v1

Phys.Rev. D62 (2000) 094508

Physics

High Energy Physics

High Energy Physics - Lattice

8 pages TEX, 3 Postscript figures available at http://www.krl.caltech.edu/preprints/MAP.html

Scientific paper

10.1103/PhysRevD.62.094508

We investigate the temperature dependence of the instanton contents of gluon fields, using unquenched lattice QCD and the cooling method. The instanton size parameter deduced from the correlation function decreases from 0.44fm below the phase-transition temperature $T_c$ ($\approx 150$MeV) to 0.33fm at 1.3 $T_c$. The instanton charge distribution is Poissonian above $T_c$, but it deviates from the convoluted Poisson at low temperature. The topological susceptibility decreases rapidly below $T_c$, showing the apparent restoration of the $U(1)_A$ symmetry already at $T \approx T_c$.

Affiliated with

Also associated with

No associations

Rating

Temperature dependence of instantons in QCD does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Temperature dependence of instantons in QCD, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Temperature dependence of instantons in QCD will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-324659