TY  - JOUR
AU  - Athenodorou, A.
AU  - Binosi, D.
AU  - Boucaud, P.
AU  - De Soto, F.
AU  - Papavassiliou, J.
AU  - Rodriguez-Quintero, J.
AU  - Zafeiropoulos, S.
PY  - 2016
DA  - 2016//
TI  - On the zero crossing of the three-gluon vertex
T2  - Phys. Lett. B
JO  - Physics Letters B
SP  - 444
EP  - 449
VL  - 761
PB  - Elsevier Science Bv
KW  - Lattice simulations
KW  - Three-gluon vertex
KW  - Zero crossing
KW  - Schwinger-Dyson equations
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.
SN  - 0370-2693
UR  - http://arxiv.org/abs/1607.01278
UR  - https://doi.org/10.1016/j.physletb.2016.08.065
DO  - 10.1016/j.physletb.2016.08.065
LA  - English
N1  - WOS:000384469900063
ID  - Athenodorou_etal2016
ER  -