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@ARTICLE{Engel:206377,
author = {Engel, Georg P. and Giusti, Leonardo and Lottini, Stefano
and Sommer, Rainer},
title = {{S}pectral density of the {D}irac operator in two-flavour
{QCD}},
reportid = {PUBDB-2015-00868, arXiv:1411.6386},
year = {2014},
note = {OA},
abstract = {We compute the spectral density of the (Hermitean) Dirac
operator in Quantum Chromodynamics with two light degenerate
quarks near the origin. We use CLS/ALPHA lattices generated
with two flavours of O(a)-improved Wilson fermions
corresponding to pseudoscalar meson masses down to 190 MeV,
and with spacings in the range 0.05-0.08 fm. Thanks to the
coverage of parameter space, we can extrapolate our data to
the chiral and continuum limits with confidence. The results
show that the spectral density at the origin is non-zero
because the low modes of the Dirac operator do condense as
expected in the Banks-Casher mechanism. Within errors, the
spectral density turns out to be a constant function up to
eigenvalues of approximately 80 MeV. Its value agrees with
the one extracted from the Gell-Mann-Oakes-Renner relation.},
cin = {ZEU-NIC},
cid = {I:(DE-H253)ZEU-NIC-20120731},
pnm = {514 - Theoretical Particle Physics (POF2-514)},
pid = {G:(DE-HGF)POF2-514},
experiment = {EXP:(DE-MLZ)NOSPEC-20140101},
typ = {PUB:(DE-HGF)25 / PUB:(DE-HGF)15},
eprint = {1411.6386},
howpublished = {arXiv:1411.6386},
archivePrefix = {arXiv},
SLACcitation = {$\%\%CITATION$ = $arXiv:1411.6386;\%\%$},
url = {https://bib-pubdb1.desy.de/record/206377},
}