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Hadronic Spectra and Light-Front Wavefunctions in Holographic QCD
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We show how the string amplitude $\Phi(z)$ defined on the fifth dimension in AdS$_5$ space can be precisely mapped to the light-front wavefunctions of hadrons in physical spacetime. We find an exact correspondence between the holographic variable $z$ and an impact variable $\zeta$, which represents the measure of transverse separation of the constituents within the hadrons. In addition, we derive effective four dimensional Schr\"odinger equations for the bound states of massless quarks and gluons which exactly reproduce the AdS/CFT results and give a realistic description of the light-quark meson and baryon spectrum as well as the form factors for spacelike $Q^2$. Only one parameter which sets the mass scale, $\Lambda_{QCD}$, is introduced.
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Forward citations
Cited by 3 Pith papers
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Regge spectral generator and form factors from hard exclusive amplitudes in holographic QCD
The infinite tower of hard exclusive amplitudes in holographic light-front QCD produces a spectral generator G(α,λ) that encodes the full Regge spectrum and yields analytic form factors and parton distributions.
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Pion parton distribution functions and pion-nucleus induced $J/\psi$ production in extended light-front holographic QCD
Pion PDFs from holographic light-front QCD are consistent with global analyses and produce J/ψ cross sections matching experimental data across energies and targets.
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Pion parton distribution functions and pion-nucleus induced $J/\psi$ production in extended light-front holographic QCD
Pion PDFs derived from holographic light-front wave functions yield NLO J/ψ production cross sections in pion-nucleus collisions that agree with data.
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