High - T QCD and dimensional reduction: Measuring the Debye mass - INSPIRE

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High - T QCD and dimensional reduction: Measuring the Debye mass

K. Kajantie
(
- CERN and
- Helsinki U.
)
,
M. Laine
(
- Heidelberg U.
)
,
J. Peisa
(
- Liverpool U.
)
,
A. Rajantie
(
- Helsinki U.
)
,
K. Rummukainen
(
- Bielefeld U.
)

Sep, 1997

3 pages

Part of Proceedings, 15th International Symposium on Lattice Field Theory (Lattice 1997) : Edinburgh, UK, July 22-26, 1997, 418-420

Published in:

Nucl.Phys.B Proc.Suppl. 63 (1998) 418-420

Contribution to:

- Lattice 1997
, 418-420

e-Print:

hep-lat/9709024 [hep-lat]

DOI:

10.1016/S0920-5632(97)00788-3

Report number:

BI-TP-97-35

View in:

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Abstract:

We study the high-temperature phase of SU(2) and SU(3) QCD using lattice simulations of an effective 3-dimensional SU(N) + adjoint Higgs -theory, obtained through dimensional reduction. We investigate the phase diagram of the 3D theory, and find that the high-T QCD phase corresponds to the metastable symmetric phase of the 3D theory. We measure the Debye screening mass m_D with gauge invariant operators; in particular we determine the O(g^2) and O(g^3) corrections to m_D. The corrections are seen to be large, modifying the standard power-counting hierarchy in high temperature QCD.

Note:

3 pages, Latex, 3 figures. Presented by K. Rummukainen at Lattice '97 Report-no: BI-TP 97/35

talk: Edinburgh 1997/07/22
lattice field theory
gauge field theory: SU(2)
gauge field theory: SU(3)
critical phenomena: finite temperature
gauge field theory: SU(N)
dimension: 3
Higgs model
dimensional reduction
mass: screening

References(16)

Figures(0)

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