Light-Front QCD
| dc.creator | Brodsky, S. J. | |
| dc.date | 2004-12-07 | |
| dc.date.accessioned | 2026-07-07T03:54:03Z | |
| dc.date.available | 2026-07-07T03:54:03Z | |
| dc.description | In these lectures, I survey a number of applications of light-front methods to hadron and nuclear physics phenomenology and dynamics, Light-front Fock-state wavefunctions provide a frame-independent representation of hadrons in terms of their fundamental quark and gluon degrees of freedom. Nonperturbative methods for computing LFWFs in QCD are discussed, including string/gauge duality which predicts the power-law fall-off at high momentum transfer of light-front Fock-state hadronic wavefunctions with an arbitrary number of constituents and orbital angular momentum. The AdS/CFT correspondence has important implications for hadron phenomenology in the conformal limit, including an all-orders derivation of counting rules for exclusive processes. One can also compute the hadronic spectrum of near-conformal QCD assuming a truncated AdS/CFT space. The quantum fluctuations represented by the light-front Fock expansion leads to novel QCD phenomena such as color transparency, intrinsic heavy quark distributions, diffractive dissociation, and hidden-color components of nuclear wavefunctions. A new test of hidden color in deuteron photodisintegration is proposed. The origin of leading-twist phenomena such as the diffractive component of deep inelastic scattering, single-spin asymmetries, nuclear shadowing and antishadowing is also discussed; these phenomena cannot be described by light-front wavefunctions of the target computed in isolation. Part of the anomalous NuTeV results for the weak mixing angle could be due to the non-universality of nuclear antishadowing for charged and neutral currents. | |
| dc.description | Invited lectures and talk presented at the 58th Scottish University Summer School In Physics: A NATO Advanced Study Institute and the European Union Hadronic Physics 13 Summer Institute (SUSSP58) 30 Aug-1 Sep 2004, St. Andrews, Scotland | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0412101 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0412101 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/44081 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Light-Front QCD | |
| dc.type | text |