Particle Physics Seminar

One of the most interesting recent advances in hadron physics has been the application of AdS/CFT to quantum chromodynamics. Although QCD is not a conformally invariant field theory, one can nevertheless use the mathematical representation of the conformal group in
five-dimensional anti-de Sitter space to construct a comprehensive model for hadron physics. The AdS/QCD model gives accurate predictions for hadron spectroscopy and a description of the quark structure of mesons and baryons which has scale invariance and dimensional counting at short distances, as well as quark confinement at large distances.


One can also compute from AdS/CFT the form of the frame-independent light-front hadronic wavefunctions, the fundamental nonperturbative entities which encode hadron properties and which allow the computation of hadron form factors and scattering amplitudes. A number of novel applications of light-front wavefunctions to QCD phenomenology will be discussed, such as direct hard processes and color transparency at RHIC, hidden color, intrinsic charm, sea-quark asymmetries, dijet diffraction, direct hard processes, and hadronic spin dynamics.


This talk will be directed towards experimentalists.