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Features of a 2d gauge theory with vanishing chiral condensate

Author

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  • David Landa-Marbán

    (Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, A.P. 70-543, C.P. 04510 Distrito Federal, Mexico)

  • Wolfgang Bietenholz

    (Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, A.P. 70-543, C.P. 04510 Distrito Federal, Mexico)

  • Ivan Hip

    (Faculty of Geotechnical Engineering, University of Zagreb, Hallerova aleja 7, 42000 Varaždin, Croatia)

Abstract

The Schwinger model withNf≥ 2flavors is a simple example for a fermionic model with zero chiral condensate Σ (in the chiral limit). We consider numerical data for two light flavors, based on simulations with dynamical chiral lattice fermions. We test properties and predictions that were put forward in the recent literature for models with Σ = 0, which include IR conformal theories. In particular, we probe the decorrelation of low lying Dirac eigenvalues, and we discuss the mass anomalous dimension and its IR extrapolation. Here, we encounter subtleties, which may urge caution with analogous efforts in other models, such as multi-flavor QCD.

Suggested Citation

  • David Landa-Marbán & Wolfgang Bietenholz & Ivan Hip, 2014. "Features of a 2d gauge theory with vanishing chiral condensate," International Journal of Modern Physics C (IJMPC), World Scientific Publishing Co. Pte. Ltd., vol. 25(10), pages 1-15.
    • Handle: RePEc:wsi:ijmpcx:v:25:y:2014:i:10:n:s012918311450051x
    DOI: 10.1142/S012918311450051X
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    References listed on IDEAS

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    1. מחקר - ביטוח לאומי, 2009. "אוגוסט 2009," Working Papers 209, National Insurance Institute of Israel.
    2. מחקר - ביטוח לאומי, 2009. "ינואר 2009," Working Papers 210, National Insurance Institute of Israel.
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