Hadronic Form Factor Models and Spectroscopy Within the Gauge/Gravity Correspondence

Understand

We show that the nonperturbative light-front dynamics of relativistic hadronic bound states has a dual semiclassical gravity description on a higher dimensional warped AdS space in the limit of zero quark masses.

• This mapping of AdS gravity theory to the boundary quantum field theory, quantized at fixed light-front time, allows one to establish a precise relation between holographic wave functions in AdS space and the light-front wavefunctions describing the internal structure of hadrons.
• The resulting AdS/QCD model gives a remarkably good accounting of the spectrum, elastic and transition form factors of the light-quark hadrons in terms of one parameter, the QCD gap scale.
• The light-front holographic approach described here thus provides a frame-independent first approximation to the light-front Hamiltonian problem for QCD.