Dynamical chiral symmetry breaking in SU(N_{c}) gauge theories with large number of fermion flavors
| dc.creator | Gromenko, Oleksandr | |
| dc.date | 2007-10-08 | |
| dc.date | 2007-10-08 | |
| dc.date.accessioned | 2026-07-07T08:34:47Z | |
| dc.date.available | 2026-07-07T08:34:47Z | |
| dc.description | In this paper we examine a phase transition in $SU(N_{c})$ gauge theories governed by the existence of an infrared fixed point of the renormalization group $β$ function. The nonlinear integral Schwinger-Dyson equation for a mass function of massless fermions is solved numerically using the exact expression of the running coupling in two-loop approximation for an SU(3) gauge theory. Based on the obtained solution of the Schwinger-Dyson equation, the value of the chiral condensate, $<\bar{q}q>$, and the decay constant, $f_π$, of bound states (mesons) are calculated for several values of fermion flavors $N_{f}$. We show that this kind of phase transition is a transition of finite order. | |
| dc.description | 5 pages,1 figure | |
| dc.identifier | https://arxiv.org/abs/0710.1591 | |
| dc.identifier | http://arxiv.org/abs/0710.1591 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/139556 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Dynamical chiral symmetry breaking in SU(N_{c}) gauge theories with large number of fermion flavors | |
| dc.type | text |