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arXiv · hep-ph/9501323

Fermion Confinement by a Relativistic Flux Tube

M. G. Olsson·S. Veseli·K. Williams
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Abstract

We formulate the description of the dynamic confinement of a single fermion by a flux tube. The range of applicability of this model extends from the relativistic corrections of a slowly moving quark to the ultra-relativistic motion in a heavy-light meson. The reduced Salpeter equation, also known as the no-pair equation, provides the framework for our discussion. The Regge structure is that of a Nambu string with one end fixed. Numerical solutions are found giving very good fits to heavy-light meson masses. An Isgur-Wise function with a zero recoil slope of $ξ'(1)\simeq -1.26 $ is obtained.

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M. G. Olsson, S. Veseli, K. Williams. 1995-12-19. Fermion Confinement by a Relativistic Flux Tube. https://doi.org/10.1103/physrevd.53.4006

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