| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1841264 | Nuclear Physics B | 2011 | 16 Pages |
Abstract
The low lying spectrum of the O(n) effective field theory is calculated in the delta-regime in 3 and 4 space-time dimensions using lattice regularization to NNL order. It allows, in particular, to determine, using numerical simulations in different spatial volumes, the pion decay constant F in QCD with 2 flavours or the spin stiffness Ï for an antiferromagnet in d=2+1 dimensions.
Keywords
Related Topics
Physical Sciences and Engineering
Mathematics
Mathematical Physics
Authors
Ferenc Niedermayer, Christoph Weiermann,