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Conserved Density Fluctuation and Temporal Correlation Function in HTL Perturbation Theory | | Najmul Haque
; Munshi G. Mustafa
; Markus H. Thoma
; | | Date: |
17 Mar 2011 | | Abstract: | Considering recently developed Hard Thermal Loop perturbation theory that
takes into account the effect of the variation of the external field through
the fluctuations of a conserved quantity we calculate the temporal component of
the Euclidian correlation function in the vector channel. The results are found
to be in good agreement with the very recent results obtained within the
quenched approximation of QCD and small values of the quark mass ($sim 0.1T$)
on improved lattices of size $128^3 imes N_ au$ at ($N_ au=40, T=1.2T_C$),
($N_ au=48, T=1.45T_C$), and ($N_ au=16, T=2.98T_C$), where $N_ au$ is
the temporal extent of the lattice. This suggests that the results from lattice
QCD and Hard Thermal Loop perturbation theory are in close proximity for a
quantity associated with the conserved density fluctuation. | | Source: | arXiv, 1103.3394 | | Services: | Forum | Review | PDF | Favorites | |
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