Journal
NUCLEAR PHYSICS B
Volume 842, Issue 2, Pages 248-263Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.nuclphysb.2010.09.007
Keywords
Chiral perturbation theory; Delta-regime
Categories
Funding
- Schweizerischer Nationalfonds
- DFG [SFB/TR-55]
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The low lying spectrum or 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 rho for an antiferromagnet in d = 2 + 1 dimensions. (C) 2010 Elsevier B.V. All rights reserved.
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