IS THERE A LANDAU POLE PROBLEM IN QED

Authors
GOCKELER M HORSLEY R LINKE V RAKOW P SCHIERHOLZ G STUBEN H
Citation
M. Gockeler et al., IS THERE A LANDAU POLE PROBLEM IN QED, Physical review letters, 80(19), 1998, pp. 4119-4122
Citations number
11
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
80
Issue
19
Year of publication
1998
Pages
4119 - 4122
Database
ISI
SICI code
0031-9007(1998)80:19<4119:ITALPP>2.0.ZU;2-E
Abstract
We investigate a lattice version of QED with four flavors by numerical simulations. For the renormalized charge (e(R)) and mass we find resu lts which are consistent with e(R) vanishing in the continuum limit. A detailed study of the relation between bare and renormalized quantiti es reveals that the Landau pole lies in a region of parameter space wh ich is made inaccessible by spontaneous chiral symmetry breaking.