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arXiv · 1006.5855

The rotator spectrum in the delta-regime of the O(n) effective field theory in 3 and 4 dimensions

Ferenc Niedermayer·Christoph Weiermann
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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 rho for an antiferromagnet in d=2+1 dimensions.

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Ferenc Niedermayer, Christoph Weiermann. 2010-06-30. The rotator spectrum in the delta-regime of the O(n) effective field theory in 3 and 4 dimensions. https://doi.org/10.1016/j.nuclphysb.2010.09.007

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