Concerning the quark condensate

Kurt Langfeld; H Markum; R.  Pullirsch; C.D.  Roberts; S.M. Schmidt

doi:10.1103/PhysRevC.67.065206

Concerning the quark condensate

Kurt Langfeld
, H Markum
, R. Pullirsch
, C.D. Roberts
, S.M. Schmidt

Research output: Contribution to journal › Article › peer-review

47 Citations (Scopus)

Abstract

A continuum expression for the trace of the massive dressed-quark propagator is used to explicate a connection between the infrared limit of the QCD Dirac operator's spectrum and the quark condensate appearing in the operator product expansion. This connection is verified via comparison with a lattice-QCD simulation. The pseudoscalar vacuum polarization provides a good approximation to the condensate over a larger range of current-quark masses.

Original language	English
Article number	065206
Number of pages	7
Journal	Physical Review C
Volume	67
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevC.67.065206
Publication status	Published - Jun 2003
Externally published	Yes

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10.1103/PhysRevC.67.065206

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title = "Concerning the quark condensate",

abstract = "A continuum expression for the trace of the massive dressed-quark propagator is used to explicate a connection between the infrared limit of the QCD Dirac operator's spectrum and the quark condensate appearing in the operator product expansion. This connection is verified via comparison with a lattice-QCD simulation. The pseudoscalar vacuum polarization provides a good approximation to the condensate over a larger range of current-quark masses.",

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AB - A continuum expression for the trace of the massive dressed-quark propagator is used to explicate a connection between the infrared limit of the QCD Dirac operator's spectrum and the quark condensate appearing in the operator product expansion. This connection is verified via comparison with a lattice-QCD simulation. The pseudoscalar vacuum polarization provides a good approximation to the condensate over a larger range of current-quark masses.

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M3 - Article

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JO - Physical Review C

JF - Physical Review C

IS - 6

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Concerning the quark condensate

Abstract

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