Abstract
QED in 2+1 dimensions with N four-component fermions is analyzed following T.Appelquist et al. in the leading and next-to-leading orders of the 1/N expansion. It is shown that the range of the admissible values N, where the dynamical fermion mass exists, decreases strongly with the increasing of the gauge charge. So, in Landau gauge the dynamical chiral symmetry breaking appears for N<3.31, that is very close to the results of the leading order and in Feynman gauge dynamical mass is completely absent. (author). 13 refs.
Citation Formats
Kotikov, A V.
On the critical behaviour of (2+1)-dimensional QED.
JINR: N. p.,
1993.
Web.
Kotikov, A V.
On the critical behaviour of (2+1)-dimensional QED.
JINR.
Kotikov, A V.
1993.
"On the critical behaviour of (2+1)-dimensional QED."
JINR.
@misc{etde_10144915,
title = {On the critical behaviour of (2+1)-dimensional QED}
author = {Kotikov, A V}
abstractNote = {QED in 2+1 dimensions with N four-component fermions is analyzed following T.Appelquist et al. in the leading and next-to-leading orders of the 1/N expansion. It is shown that the range of the admissible values N, where the dynamical fermion mass exists, decreases strongly with the increasing of the gauge charge. So, in Landau gauge the dynamical chiral symmetry breaking appears for N<3.31, that is very close to the results of the leading order and in Feynman gauge dynamical mass is completely absent. (author). 13 refs.}
place = {JINR}
year = {1993}
month = {Dec}
}
title = {On the critical behaviour of (2+1)-dimensional QED}
author = {Kotikov, A V}
abstractNote = {QED in 2+1 dimensions with N four-component fermions is analyzed following T.Appelquist et al. in the leading and next-to-leading orders of the 1/N expansion. It is shown that the range of the admissible values N, where the dynamical fermion mass exists, decreases strongly with the increasing of the gauge charge. So, in Landau gauge the dynamical chiral symmetry breaking appears for N<3.31, that is very close to the results of the leading order and in Feynman gauge dynamical mass is completely absent. (author). 13 refs.}
place = {JINR}
year = {1993}
month = {Dec}
}