RT Journal Article
T1 Gluon Green functions free of quantum fluctuations
A1 Athenodorou, A.
A1 Boucaud, Ph.
A1 Soto Borrero, Feliciano Carlos de
A1 Rodríguez Quintero, José
A1 Zafeiropoulos, S.
AB This letter reports on how the Wilson flow technique can efficaciously kill the short-distance quantum fluctuations of 2- and 3-gluon Green functions, remove the ΛQCDΛQCD scale and destroy the transition from the confining non-perturbative to the asymptotically-free perturbative sector. After the Wilson flow, the behavior of the Green functions with momenta can be described in terms of the quasi-classical instanton background. The same behavior also occurs, before the Wilson flow, at low-momenta. This last result permits applications as, for instance, the detection of instanton phenomenological properties or a determination of the lattice spacing only from the gauge sector of the theory.
PB Elsevier
SN 0370-2693
SN 1873-2445 (electrónico)
YR 2016
FD 2016
LK http://hdl.handle.net/10272/13357
UL http://hdl.handle.net/10272/13357
LA eng
NO Athenodorou, A., Boucaud, Ph., Soto Borrero, F.C., Rodríguez Quintero, J., Zafeiropoulos, S.: "Gluon Green functions free of quantum fluctuations". Physics Letters B. Vol. 760, págs.  354–358, (2016). DOI: 10.1016/j.physletb.2016.07.007
NO We thank the support of Spanish MINECO FPA2014-53631-C2-2-P research project, SZ acknowledges support by the Alexander von Humboldt foundation. We thank K. Cichy, M. Creutz, O. Pene, O. Philipsen, M. Teper, J. Verbaarschot for fruitful discussions. Numerical computations were partially performed on the LOEWE-CSC high-performance supercomputer of Johann Wolfgang Goethe-University Frankfurt am Main and have also used resources of CINES and GENCI-IDRIS as well as resources at the IN2P3 computing facility in Lyon. We would like to thank HPC-Hessen, funded by the State Ministry of Higher Education, Research and the Arts, for programming advice. We are finally grateful to the European Twisted Mass collaboration for making their gauge field configurations publicly available.
DS Repositorio Institucional de la Universidad de Huelva
RD 30 may 2026