We present preliminary lattice results for the topological susceptibility in high-TNf=2+1 QCD obtained discretizing this observable via spectral projectors on eigenmodes of the staggered operator, and we compare them with those obtained with the standard gluonic definition. The adoption of the spectral discretization is motivated by the large lattice artifacts affecting the continuum scaling of the gluonic susceptibility at high T, related to the choice of non-chiral fermions in the action.
@article{arxiv.2112.02982,
title = {Topology in high-$T$ QCD via staggered spectral projectors},
author = {Andreas Athenodorou and Claudio Bonanno and Claudio Bonati and Giuseppe Clemente and Francesco D'Angelo and Massimo D'Elia and Lorenzo Maio and Guido Martinelli and Francesco Sanfilippo and Antonino Todaro},
journal= {arXiv preprint arXiv:2112.02982},
year = {2021}
}
Comments
11 pages, 5 eps figures, proceeding for The 38th International Symposium on Lattice Field Theory, LATTICE2021, 26th-30th July, 2021, Zoom/Gather@Massachusetts Institute of Technology