Improving the infra-red of holographic descriptions of QCD | Zendy

Nick Evans | Zendy; Andrew Tedder | Zendy; Tom Waterson | Zendy

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Improving the infra-red of holographic descriptions of QCD

Author(s) -

Nick Evans,

Andrew Tedder,

Tom Waterson

Publication year - 2007

Publication title -

journal of high energy physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.998

H-Index - 261

eISSN - 1126-6708

pISSN - 1029-8479

DOI - 10.1088/1126-6708/2007/01/058

Subject(s) - quantum chromodynamics , physics , metric (unit) , theoretical physics , dual polyhedron , string theory , holography , particle physics , string (physics) , infrared , gauge theory , gauge (firearms) , mathematical physics , pure mathematics , quantum mechanics , mathematics , operations management , archaeology , economics , history

A surprisingly good holographic description of QCD can be obtained from naivefive dimensional gauge theory on a truncated AdS space. We seek to improve theinfra-red description of QCD in such models by using a more sophisticatedmetric and an action derived from string theory duals of chiral symmetrybreaking. Our metric is smooth into the infra-red and the chiral condensate isa prediction of the dynamics. The theory reproduces QCD meson data at the 10%level.Comment: 17 pages, 2 figures, small corrections and updated fit

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