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

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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 ... continued below

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Brodsky, Stanley J.; /SLAC; de Teramond, Guy F. & U., /Costa Rica August 22, 2011.

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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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  • Invited talk at Baryons'10: International Conference on Structure of Baryons, Osaka, Japan, 7-11 Dec 2010

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  • Report No.: SLAC-PUB-14381
  • Grant Number: AC02-76SF00515
  • Office of Scientific & Technical Information Report Number: 1023236
  • Archival Resource Key: ark:/67531/metadc837682

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  • August 22, 2011

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  • May 19, 2016, 3:16 p.m.

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  • Dec. 2, 2016, 8:19 p.m.

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Brodsky, Stanley J.; /SLAC; de Teramond, Guy F. & U., /Costa Rica. Applications of AdS/QCD and Light-Front Holography to Baryon Physics, article, August 22, 2011; United States. (digital.library.unt.edu/ark:/67531/metadc837682/: accessed November 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.