RT Journal Article
T1 Divergent IR gluon propagator from Ward-Slavnov-Taylor identities?
A1 Boucaud, Ph.
A1 Leroy, J. P.
A1 Le Yaouanc, Alain
A1 Rodríguez Quintero, José
AB We exploit the Ward-Slavnov-Taylor identity relating in genaral covariantgauges the 3-gluons to the ghost-gluon vertices to conclude either that the ghost dressingfunction is finite and non vanishing at zero momentum while the gluon propagator diverges(although it may do so weakly enough not to be in contradiction with current lattice data)or that the 3-gluons vertex is non-regular when one momentum goes to zero. We stressthat those results should be kept in mind when one studies the Infrared properties of theghost and gluon propagators, for example by means of Dyson-Schwinger equations.
PB Springer Verlag
SN 1126-6708
YR 2007
FD 2007-03
LK http://hdl.handle.net/10272/18563
UL http://hdl.handle.net/10272/18563
LA eng
NO Boucaud, Ph. Leroy, J. P. Le Yaouanc, A. ... Rodríguez Quintero, J. (2007). Divergent IR gluon propagator from Ward-Slavnov-Taylor identities? Journal of High Energy Physics, Volume 2007, march, 076.
DS Repositorio Institucional de la Universidad de Huelva
RD 1 jun 2026