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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},
}