Recent progress in computing four-loop massive correlators

Details Recent progress in computing four-loop massive correlators Recent progress in computing four-loop massive correlators

2006-04-21

arxiv.org/abs/hep-ph/0604187v1

Nucl.Phys.Proc.Suppl.164:203-206,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, talk given at the 12th International Conference on Quantum Chromodynamics, Montpellier, 4-8th July 2005

Scientific paper

10.1016/j.nuclphysbps.2006.11.05

We report about recent progress in computing four-loop massive correlators. The expansion of these correlators in the external momentum leads to vacuum integrals. The calculation of these vacuum integrals can be used to determine Taylor expansion coefficients of the vacuum polarization function and decoupling functions in perturbative Quantum chromodynamics. New results at four-loop order for the lowest Taylor expansion coefficient of the vacuum polarization function and for the decoupling relation are presented.

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