Precision spectroscopy in light isovector, isoscalar and hybrid mesons

Details Precision spectroscopy in light isovector, isoscalar and hybrid mesons Precision spectroscopy in light isovector, isoscalar and hybrid mesons

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006slft.confe.192c&link_type=abstract

Proceedings of the XXIVth International Symposium on Lattice Field Theory. July 23-28, 2006, Tucson, Arizona., p.192.1

Physics

Scientific paper

We discuss all-to-all propagators in the context of high statistical precision determinations of the isovector and isoscalar meson spectrum. In particular we look at the method of Ref. [2] that incorporates the low-lying eigenmodes and variance-reduced stochastic estimation. We find sig- nificant low-lying eigenmode dependence of mass determinations, with the number of required modes varying with the symmetry channel. We observe that the mass of a large number of tra- ditionally noisy symmetry channels can be determined to 5% statistical accuracy or higher in light-light mesons.

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