Physics – High Energy Physics – High Energy Physics - Lattice
Scientific paper
1996-10-10
Nucl.Phys.Proc.Suppl. 53 (1997) 867-869
Physics
High Energy Physics
High Energy Physics - Lattice
3 pages, LaTeX. Uses espcrc2.sty and fleqn.sty (included) Talk presented at LATTICE96(improvement)
Scientific paper
10.1016/S0920-5632(96)00804-3
Differences between lattice Monte Carlo data and perturbation theory (for example the lack of asymptotic scaling) are usually associated with the `bad' behaviour of the bare lattice coupling g_0 due to the effects of large (and unknown) higher order terms in g_0. In this philosophy a new, renormalised coupling g' is defined with the aim of making the higher order coefficients of the perturbative series in g' as small as possible. In this paper an alternative scenario is discussed where lattice artifacts are proposed as the cause of the disagreement between Monte Carlo data and the g_0-perturbative series. We find that with the addition of a lattice artifact term, the usual asymptotic scaling expression in g_0 is in excellent agreement with Monte Carlo data. Lattice data studied includes the string tension, the hadronic scale r_0, the discrete beta function, M_rho, f_pi and the 1P-1S splitting in charmonium.
No associations
LandOfFree
Lattice Monte Carlo Data versus Perturbation Theory 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 Lattice Monte Carlo Data versus Perturbation Theory, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lattice Monte Carlo Data versus Perturbation Theory will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-118057