RT Journal Article
T1 On the zero crossing of the three-gluon vertex
A1 Athenodorou, A.
A1 Binosi, Daniele
A1 Boucaud, Ph.
A1 Soto Borrero, Feliciano Carlos de
A1 Rodríguez Quintero, José
A1 Zafeiropoulos, S.
AB We report on new results on the infrared behavior of the three-gluon vertex in quenched Quantum Chromodynamics, obtained from large-volume lattice simulations. The main focus of our study is the appearance of the characteristic infrared feature known as ‘zero crossing’, the origin of which is intimately connected with the nonperturbative masslessness of the Faddeev–Popov ghost. The appearance of this effect is clearly visible in one of the two kinematic configurations analyzed, and its theoretical origin is discussed in the framework of Schwinger–Dyson equations. The effective coupling in the momentum subtraction scheme that corresponds to the three-gluon vertex is constructed, revealing the vanishing of the effective interaction at the exact location of the zero crossing.
PB Elsevier
SN 0370-2693
SN 1873-2445 (electrónico)
YR 2016
FD 2016
LK http://hdl.handle.net/10272/13641
UL http://hdl.handle.net/10272/13641
LA eng
NO Athenodorou, A., Binosi, D., Boucaud, Ph., Soto Borrero, F.C., Rodríguez Quintero, J., Zafeiropoulos, S.: "On the zero crossing of the three-gluon vertex". Physics Letters B. Vo. 761, págs.  444–449. DOI: 10.1016/j.physletb.2016.08.065
NO The research of J.P. and J.R-Q is supported by the Spanish MINECO under grant FPA2014-53631-C2-1-P and FPA2014-53631-C2-2-P and SEV-2014-0398, and Generalitat Valenciana under grant Prometeo II/2014/066. S. Z. 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 have used resources of CINES and GENCI-IDRIS as well as resources at the IN2P3 computing facility in Lyon.
DS Repositorio Institucional de la Universidad de Huelva
RD 30 may 2026