The spatial distribution of the action and energy in the color fields of flux tubes is studied in lattice SU(2) field theory for static quarks at separations up to 1 fm. Special attention is paid to the structure of the color fields associated with an excited flux tube with Eᵤ symmetry. We compare our results with hadronic string and flux-tube models. Sum rules are used to extract generalized β functions, to describe the expected color field behavior, and to cross-check the methods used.
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Green et al. (1997) studied this question.
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