An analysis of the vector meson spectrum from lattice QCD

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We re-analyse meson sector data from the CP-PACS collaboration's dynamical simulations. Our analysis uses several different approaches, and compares the standard naive linear fit with the Adelaide Anzatz. We find that setting the scale using the J parameter gives remarkable agreement among data sets. Our predictions for the rho and phi masses have very small statistical errors, 3 MeV, but the discrepancy between the different fitting approaches is 40 MeV.