Physics – High Energy Physics – High Energy Physics - Lattice
Scientific paper
1995-02-21
Annals Phys. 255 (1997) 34-59
Physics
High Energy Physics
High Energy Physics - Lattice
19 pages a uuencoded, compressed file (LateX). Uses more configurations and computes correlated chi-squareds on fits. Figures
Scientific paper
10.1006/aphy.1996.5648
Using lattice QCD on a $16^{3}\times 24$ lattice at $\beta=6.0$, we examine the elastic limit of charge overlap functions in the quenched approximation for the pion and rho meson; results are compared to previous direct current insertion calculations. A good signal is seen for the pion, but the electric and magnetic rho meson results are considerably noisier. We find that the pion and rho results are characterized by a monopole mass to rho mass ratio of $0.97(8)$ and $0.73(10)$, respectively. Assuming the functional form of the electric and magnetic form factors are the same, we also find a rho meson g-factor of $g=2.25(34)$, consistent with the nonrelativistic quark model.
Andersen William
Wilcox Walter
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