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Geometric approach to condensates in holographic QCD

Johannes Hirn1,*, Nuria Rius1,†, and Verónica Sanz2,‡

  • 1IFIC, Departament de Física Teòrica, CSIC - Universitat de València, Edifici d’Instituts de Paterna, Apt. Correus 22085, 46071 València, Spain
  • 2Jefferson Laboratory of Physics, Harvard University, Cambridge, Massachusetts 02138, USA, and Departamento de Física Teórica y del Cosmos, Universidad de Granada, Campus de Fuentenueva, 18071 Granada, Spain

  • *Electronic address: johannes.hirn@ific.uv.es
  • †Electronic address: nuria@ific.uv.es
  • ‡Electronic address: vsanz@ugr.es
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Phys. Rev. D 73, 085005 – Published 14 April, 2006

DOI: https://doi.org/10.1103/PhysRevD.73.085005

Abstract

An SU(Nf)×SU(Nf) Yang-Mills theory on an extra-dimensional interval is considered, with appropriate symmetry-breaking boundary conditions on the IR brane. UV-brane to UV-brane correlators at high energies are compared with the OPE of two-point functions of QCD quark currents. Condensates correspond to departure from the AdS metric of the (different) metrics felt by vector and axial combinations, away from the UV brane. Their effect on hadronic observables is studied: the extracted condensates agree with the signs and orders of magnitude expected from QCD.

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Phys. Rev. D 73, 085005– Published 14 April, 2006
  • Received 16 January 2006

© 2006 American Physical Society

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