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A New Method for Taming Tensor Sum-Integrals

Ioan Ghisoiu
(
- Bielefeld U.
)
,
York Schroder
(
- Bielefeld U.
)

Aug, 2012

26 pages

Published in:

JHEP 11 (2012) 010

e-Print:

1208.0284 [hep-ph]

DOI:

10.1007/JHEP11(2012)010

Report number:

BI-TP-2012-32

View in:

reference search21 citations

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Abstract: (arXiv)

We report on the computation of a class of massless bosonic three-loop vacuum sum-integrals which are key building blocks for an evaluation of the Debye screening mass in hot QCD. Generalizing known techniques and introducing the concept of tensor reduction by dimensionality shifts (known to the zero-temperature community since the work of Tarasov in 1996) to finite temperature, we are able to treat hitherto unaccessible cases, which will allow us to finalize the long-term project of NNLO Debye mass evaluation.

Note:

26 pages

boson: massless
mass: screening: Debye
quantum chromodynamics
finite temperature
numerical methods
zero mode
loop integral
tensor
mathematical methods

References(37)

Figures(0)

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