Abstract
It is possible to define and calculate in a gauge-invariant manner the chiral as well as the partial wave content of the quark–antiquark Fock component of a meson in the infrared, where mass is generated. Using the variational method and a set of interpolators that span a complete chiral basis we extract in a lattice QCD Monte Carlo simulation with n f = 2 dynamical light quarks the orbital angular momentum and spin content of the ρ-meson. We obtain in the infrared a simple 3 S 1 component as a leading component of the ρ-meson with a small admixture of the 3 D 1 partial wave, in agreement with the SU(6) flavor–spin symmetry.
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This paper is dedicated to our colleague Willibald Plessas on occasion of his 60th birthday.
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Glozman, L.Y., Lang, C.B. & Limmer, M. The Chiral and Angular Momentum Content of the ρ-Meson. Few-Body Syst 47, 91–103 (2010). https://doi.org/10.1007/s00601-009-0075-y
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DOI: https://doi.org/10.1007/s00601-009-0075-y