1997/09/24 by Paul Hoyer, Hoyer, Paul
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/9709444
14 pages, no figures. Talk presented at the `APCTP-ICTP Joint International Conference 1997 (AIJIC 97) on Recent Developments in Non-perturbative Methods', May 26 - 30, 1997 in Seoul, Korea
arxiv created 1997/09/24 · arxiv updated 2009/11/30
There is considerable freedom in setting boundary conditions to perturbation theory at t=±∞. The standard PQED and PQCD expansions are based on the (empty) perturbative vacuum. Since the true QCD ground state is expected to have a condensate of low momentum gluons, I propose studying expansions around states containing free particles. A specific boundary condition (the `Perturbative Gluon Condensate'), which implies a freezing of low momentum gluons, could be a candidate for describing confinement physics. The modified perturbative series has a number of new features, although it is formally equivalent to the standard one and a priori equally justified.