### Abstract

We estimate the quark condensate in one-flavor massless QCD from the known value of the gluino condensate in SUSY Yang-Mills theory using our newly proposed "orientifold" large-N expansion. The numerical result for the quark condensate renormalized at the scale 2 GeV is then given as a function of α_{S} (2 GeV) and of possible corrections from sub-leading terms. Our value can be compared with the quark condensate in (quenched) lattice QCD or with the one extracted from the Gell-Mann-Oakes-Renner relation by virtue of non-lattice determinations of the quark masses. In both cases we find quite a remarkable agreement.

Original language | English (US) |
---|---|

Pages (from-to) | 384-390 |

Number of pages | 7 |

Journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |

Volume | 579 |

Issue number | 3-4 |

DOIs | |

State | Published - Jan 22 2004 |

## Fingerprint Dive into the research topics of 'QCD quark condensate from SUSY and the orientifold large-N expansion'. Together they form a unique fingerprint.

## Cite this

Armoni, A., Shifman, M., & Veneziano, G. (2004). QCD quark condensate from SUSY and the orientifold large-N expansion.

*Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics*,*579*(3-4), 384-390. https://doi.org/10.1016/j.physletb.2003.10.094