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The gluon propagator

1999; Elsevier BV; Volume: 315; Issue: 1-3 Linguagem: Inglês

10.1016/s0370-1573(99)00027-7

ISSN

1873-6270

Autores

Jeffrey E. Mandula,

Tópico(s)

High-Energy Particle Collisions Research

Resumo

We discuss the current state of what is known non-perturbatively about the gluon propagator in QCD, with emphasis on the information coming from lattice simulations. We review specification of the lattice Landau gauge and the procedure for calculating the gluon propagator on the lattice. We also discuss some of the difficulties in non-perturbative calculations – especially Gribov copy issues. We trace the evolution of lattice simulations over the past dozen years, emphasizing how the improvement in computations has led not only to more precise determinations of the propagator, but has allowed more detailed information about it to be extracted.

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