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arXiv · 1412.3389

The Quark Condensate in Multi-Flavour QCD - Planar Equivalence Confronting Lattice Simulations

Adi Armoni·Mikhail Shifman·Graham Shore·Gabriele Veneziano
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Abstract

Planar equivalence between the large $N$ limits of ${\cal N}=1$ Super Yang-Mills (SYM) theory and a variant of QCD with fermions in the antisymmetric representation is a powerful tool to obtain analytic non-perturbative results in QCD itself. In particular, it allows the quark condensate for $N=3$ QCD with quarks in the fundamental representation to be inferred from exact calculations of the gluino condensate in ${\cal N}=1$ SYM. In this paper, we review and refine our earlier predictions for the quark condensate in QCD with a general number $n_f$ of flavours and confront these with lattice results.

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Adi Armoni, Mikhail Shifman, Graham Shore, Gabriele Veneziano. 2014-12-14. The Quark Condensate in Multi-Flavour QCD - Planar Equivalence Confronting Lattice Simulations. https://doi.org/10.1016/j.physletb.2014.12.035

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