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arXiv · 1103.1186

Applications of AdS/QCD and Light-Front Holography to Baryon Physics

Stanley J. Brodsky·Guy F. de Teramond
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Abstract

The correspondence between theories in anti-de Sitter space and field theories in physical space-time leads to an analytic, semiclassical model for strongly-coupled QCD which has scale invariance at short distances and color confinement at large distances. These equations, for both mesons and baryons, give a very good representation of the observed hadronic spectrum, including a zero mass pion. Light-front holography allows hadronic amplitudes in the AdS fifth dimension to be mapped to frame-independent light-front wavefunctions of hadrons in physical space-time, thus providing a relativistic description of hadrons at the amplitude level. The meson and baryon wavefunctions derived from light-front holography and AdS/QCD also have remarkable phenomenological features, including predictions for the electromagnetic form factors and decay constants. The approach can be systematically improved using light-front Hamiltonian methods. Some novel features of QCD for baryon physics are also discussed.

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Stanley J. Brodsky, Guy F. de Teramond. 2011-03-07. Applications of AdS/QCD and Light-Front Holography to Baryon Physics. https://doi.org/10.1063/1.3647346

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