Date: Thu, 30 Aug 12 00:08:39 GMT
Subject: hep-lat daily 1 new +  crosses received   by eprepget 

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received   by eprepget from  Tue 28 Aug 12 20:00:00 GMT  to  Wed 29 Aug 12 20:00:00 GMT
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arXiv:1208.5914
Date: Wed, 29 Aug 2012 13:48:36 GMT   (103kb,D)

Title: On the extraction of zero momentum form factors on the lattice
Authors: G. M. de Divitiis, R. Petronzio, N. Tantalo
Categories: hep-lat hep-ph
Comments: 10 pages, 5 figures
\\
  We propose a method to expand correlation functions with respect to the
spatial components of external momenta. From the coefficients of the expansion
it is possible to extract Lorentz-invariant form factors at zero spatial
momentum transfer avoiding model dependent extrapolations. These objects can be
profitably calculated on the lattice. We have explicitly checked the validity
of the proposed procedure by considering two-point correlators with insertions
of the axial current, the form factors of the semileptonic decay of
pseudoscalar mesons, and the hadronic vacuum polarization tensor entering, for
example, the lattice calculation of the anomalous magnetic moment of the muon.
\\ ( http://arxiv.org/abs/1208.5914 ,  103kb)
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arXiv:1204.6259
replaced with revised version Wed, 29 Aug 2012 09:38:10 GMT   (682kb,AD)

Title: Level spacings for weakly asymmetric real random matrices and
  application to two-color QCD with chemical potential
Authors: Jacques Bloch, Falk Bruckmann, Nils Meyer, Sebastian Schierenberg
Categories: hep-lat
Comments: 23 pages, 6 figures, 1 animation; minor corrections, references
  added, as published in JHEP
Journal-ref: JHEP 08 (2012) 066
DOI: 10.1007/JHEP08(2012)066
\\ ( http://arxiv.org/abs/1204.6259 ,  682kb)
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