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A confining model for charmonium and new gauge-invariant field equations

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Abstract

We discuss a confining model for charmonium in which the attractive force are derived from a new type of gauge field equation with a generalized SU3 gauge symmetry. The new gauge transformations involve non-integrable phase factors with vector gauge functions ω aω (x). These transformations reduce to the usual SU3 gauge transformations in the special case ω aμ (x) = ∂ μ ξ a(x). Such a generalized gauge symmetry leads to the fourth-order equations for new gauge fields and to the linear confining potentials. The fourth-order field equation implies that the corresponding massless gauge boson has non-definite energy. However, the new gauge boson is permanently confined in a quark system by the linear potential. We use the empirical potentials of the Cornell group for charmonium to obtain the coupling strength f 2/(4π) ≈ 0.19 for the strong interaction. Such a confining model of quark dynamics could be compatible with perturbation. The model can be applied to other quark-antiquark systems.

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  1. Department of Physics, University of Massachusetts Dartmouth, 02747-2300, North Dartmouth, MA, USA

    Jong-Ping Hsu

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  1. Jong-Ping Hsu
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Hsu, JP. A confining model for charmonium and new gauge-invariant field equations. Eur. Phys. J. Plus 129, 108 (2014). https://doi.org/10.1140/epjp/i2014-14108-1

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  • DOI: https://doi.org/10.1140/epjp/i2014-14108-1

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