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APS » Journals » Phys. Rev. Lett. » Volume 95 » Issue 26
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Phys. Rev. Lett. 95, 261602 (2005) [4 pages]

QCD and a Holographic Model of Hadrons

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Joshua Erlich1, Emanuel Katz2, Dam T. Son3, and Mikhail A. Stephanov4
1Department of Physics, College of William and Mary, Williamsburg, Virginia 23187-8795, USA
2Stanford Linear Accelerator Center, Stanford University, Stanford, California 94309, USA
3Institute for Nuclear Theory, University of Washington, Seattle, Washington 98195-1550, USA
4Department of Physics, University of Illinois, Chicago, Illinois 60607-7059, USA

Received 25 January 2005; published 20 December 2005

We propose a five-dimensional framework for modeling low-energy properties of QCD. In the simplest three parameter model we compute masses, decay rates and couplings of the lightest mesons. The model fits experimental data to within 10%. The framework is a holographic version of the QCD sum rules, motivated by the anti-de Sitter/conformal field theory correspondence. The model naturally incorporates properties of QCD dictated by chiral symmetry, which we demonstrate by deriving the Gell-Mann–Oakes–Renner relationship for the pion mass.

© 2005 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.95.261602
DOI:
10.1103/PhysRevLett.95.261602
PACS:
11.25.Tq, 11.10.Kk, 11.25.Wx, 12.38.Cy
 
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