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Title: AdS/QCD and Applications of Light-Front Holography

Abstract

Light-Front Holography leads to a rigorous connection between hadronic amplitudes in a higher dimensional anti-de Sitter (AdS) space and frame-independent light-front wavefunctions of hadrons in 3 + 1 physical space-time, thus providing a compelling physical interpretation of the AdS/CFT correspondence principle and AdS/QCD, a useful framework which describes the correspondence between theories in a modified AdS5 background and confining field theories in physical space-time. To a first semiclassical approximation, where quantum loops and quark masses are not included, this approach leads to a single-variable light-front Schroedinger equation which determines the eigenspectrum and the light-front wavefunctions of hadrons for general spin and orbital angular momentum. The coordinate z in AdS space is uniquely identified with a Lorentz-invariant coordinate {zeta} which measures the separation of the constituents within a hadron at equal light-front time. The internal structure of hadrons is explicitly introduced and the angular momentum of the constituents plays a key role. We give an overview of the light-front holographic approach to strongly coupled QCD. In particular, we study the photon-to-meson transition form factors (TFFs) F{sub M{gamma}}(Q{sup 2}) for {gamma}{gamma}* {yields} M using light-front holographic methods. The results for the TFFs for the {eta} and {eta}' mesons are also presented. Somemore » novel features of QCD are discussed, including the consequences of confinement for quark and gluon condensates. A method for computing the hadronization of quark and gluon jets at the amplitude level is outlined.« less

Authors:
; ;
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1035116
Report Number(s):
SLAC-PUB-14525
arXiv:1108.5718; TRN: US1201105
DOE Contract Number:  
AC02-76SF00515
Resource Type:
Conference
Resource Relation:
Conference: InvitedAdS/CFT and Novel Approaches to Hadron and Heavy Ion Physics QFT, KITPC, The Kavli Instiutute of Theoretical Physics China, Beijing, 10/11/2010-12/3/2010
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 74 ATOMIC AND MOLECULAR PHYSICS; AMPLITUDES; ANGULAR MOMENTUM; CONDENSATES; CONFINEMENT; FIELD THEORIES; FORM FACTORS; GLUONS; HADRONS; HEAVY IONS; HOLOGRAPHY; MESONS; ORBITAL ANGULAR MOMENTUM; PHYSICS; QUANTUM CHROMODYNAMICS; QUARKS; SCHROEDINGER EQUATION; SEMICLASSICAL APPROXIMATION; SPIN; Phenomenology-HEP, Theory-HEP,HEPPH, HEPTH

Citation Formats

Brodsky, Stanley J, /SLAC /Southern Denmark U., CP3-Origins, Cao, Fu-Guang, /Massey U., de Teramond, Guy F, and /Costa Rica U. AdS/QCD and Applications of Light-Front Holography. United States: N. p., 2012. Web.
Brodsky, Stanley J, /SLAC /Southern Denmark U., CP3-Origins, Cao, Fu-Guang, /Massey U., de Teramond, Guy F, & /Costa Rica U. AdS/QCD and Applications of Light-Front Holography. United States.
Brodsky, Stanley J, /SLAC /Southern Denmark U., CP3-Origins, Cao, Fu-Guang, /Massey U., de Teramond, Guy F, and /Costa Rica U. Thu . "AdS/QCD and Applications of Light-Front Holography". United States. https://www.osti.gov/servlets/purl/1035116.
@article{osti_1035116,
title = {AdS/QCD and Applications of Light-Front Holography},
author = {Brodsky, Stanley J and /SLAC /Southern Denmark U., CP3-Origins and Cao, Fu-Guang and /Massey U. and de Teramond, Guy F and /Costa Rica U.},
abstractNote = {Light-Front Holography leads to a rigorous connection between hadronic amplitudes in a higher dimensional anti-de Sitter (AdS) space and frame-independent light-front wavefunctions of hadrons in 3 + 1 physical space-time, thus providing a compelling physical interpretation of the AdS/CFT correspondence principle and AdS/QCD, a useful framework which describes the correspondence between theories in a modified AdS5 background and confining field theories in physical space-time. To a first semiclassical approximation, where quantum loops and quark masses are not included, this approach leads to a single-variable light-front Schroedinger equation which determines the eigenspectrum and the light-front wavefunctions of hadrons for general spin and orbital angular momentum. The coordinate z in AdS space is uniquely identified with a Lorentz-invariant coordinate {zeta} which measures the separation of the constituents within a hadron at equal light-front time. The internal structure of hadrons is explicitly introduced and the angular momentum of the constituents plays a key role. We give an overview of the light-front holographic approach to strongly coupled QCD. In particular, we study the photon-to-meson transition form factors (TFFs) F{sub M{gamma}}(Q{sup 2}) for {gamma}{gamma}* {yields} M using light-front holographic methods. The results for the TFFs for the {eta} and {eta}' mesons are also presented. Some novel features of QCD are discussed, including the consequences of confinement for quark and gluon condensates. A method for computing the hadronization of quark and gluon jets at the amplitude level is outlined.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2012},
month = {2}
}

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