Hadronic Spectrum of a Holographic Dual of QCD

Journal Article · Fri May 27 00:00:00 EDT 2005 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.94.201601· OSTI ID:20696300

Teramond, Guy F. de ^[1]; Brodsky, Stanley J ^[2]

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1. Universidad de Costa Rica, San Jose (Costa Rica)
2. Stanford Linear Accelerator Center, Stanford University, Stanford, California 94309 (United States)

We compute the spectrum of light hadrons in a holographic dual of QCD defined on AdS{sub 5}xS{sup 5} which has conformal behavior at short distances and confinement at large interquark separation. Specific hadrons are identified by the correspondence of string modes with the dimension of the interpolating operator of the hadron's valence Fock state. Higher orbital excitations are matched quanta to quanta with fluctuations about the AdS background. Since only one parameter, the QCD scale {lambda}{sub QCD}, is used, the agreement with the pattern of physical states is remarkable. In particular, the ratio of delta to nucleon trajectories is determined by the ratio of zeros of Bessel functions.

• OSTI ID: 20696300
• Journal Information: Physical Review Letters, Vol. 94, Issue 20; Other Information: DOI: 10.1103/PhysRevLett.94.201601; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BESSEL FUNCTIONS
EXCITATION
FLUCTUATIONS
FOCK REPRESENTATION
MASS FORMULAE
NUCLEONS
QUANTUM CHROMODYNAMICS
SPECTRA
STRING MODELS
TOPOLOGY
TRAJECTORIES
YANG-MILLS THEORY