The Polyakov loop correlator at NNLO and singlet and octet correlators
Abstract
We present the complete next-to-next-to-leading-order calculation of the correlation function of two Polyakov loops for temperatures smaller than the inverse distance between the loops and larger than the Coulomb potential. We discuss the relationship of this correlator with the singlet and octet potentials which we obtain in an Effective Field Theory framework based on finite-temperature potential Non-Relativistic QCD, showing that the Polyakov loop correlator can be re-expressed, at the leading order in a multipole expansion, as a sum of singlet and octet contributions. We also revisit the calculation of the expectation value of the Polyakov loop at next-to-next-to-leading order.
Keywords
Cite
@article{arxiv.1010.3844,
title = {The Polyakov loop correlator at NNLO and singlet and octet correlators},
author = {Jacopo Ghiglieri},
journal= {arXiv preprint arXiv:1010.3844},
year = {2011}
}
Comments
Presented at "Quark Confinement and the Hadron Spectrum IX - QCHS IX" (30 August - 3 September 2010, Madrid, Spain), to appear in the proceedings