Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2001-11-27
Acta Phys.Polon.B32:4013-4068,2001
Physics
High Energy Physics
High Energy Physics - Phenomenology
Invited lectures, presented at the Cracow School Of Theoretical Physics: 41st Course: Fundamental Interactions, Zakopane, Pola
Scientific paper
A natural calculus for describing the bound-state structure of relativistic composite systems in quantum field theory is the light-front Fock expansion which encodes the properties of a hadrons in terms of a set of frame-independent n-particle wavefunctions. Light-front quantization in the doubly-transverse light-cone gauge has a number of remarkable advantages, including explicit unitarity, a physical Fock expansion, the absence of ghost degrees of freedom, and the decoupling properties needed to prove factorization theorems in high momentum transfer inclusive and exclusive reactions. A number of applications are discussed in these lectures, including semileptonic B-meson decays, two-photon exclusive reactions, diffractive dissociation into jets, and deeply virtual Compton scattering. The relation of the intrinsic sea to the light-front wavefunctions is discussed. Light-front quantization can also be used in the Hamiltonian form to construct an event generator for high energy physics reactions at the amplitude level. The light-cone partition function, summed over exponentially-weighted light-cone energies, has simple boost properties which may be useful for studies in heavy ion collisions. I also review recent work which shows that the structure functions measured in deep inelastic lepton scattering are affected by final-state rescattering, thus modifying their connection to light-front probability distributions. In particular, the shadowing of nuclear structure functions is due to destructive interference effects from leading-twist diffraction of the virtual photon, physics not included in the nuclear light-cone wavefunctions.
No associations
LandOfFree
QCD Phenomenology and Light-Front Wavefunctions does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with QCD Phenomenology and Light-Front Wavefunctions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and QCD Phenomenology and Light-Front Wavefunctions will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-252415