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Spin interactions in the flux-tube model and hybrid meson masses

J. Merlin, Jack Paton

Open publisher page 30 citations

Abstract

We present the results of a first exploration of meson spin interactions in the flux-tube model of Isgur and Paton. The model supports the view that long-range spin effects other than kinematical (Thomas) are small. Nonadiabatic effects somewhat enhance the long-range Thomas interaction in quark model mesons, and yield estimates for the spin splittings of the lowest hybrid mesons. We comment on the implications of these spin corrections for previous calculations of exotic hybrid decays.

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What this paper is about

We present the results of a first exploration of meson spin interactions in the flux-tube model of Isgur and Paton. The model supports the view that long-range spin effects other than kinematical (Thomas) are small. Nonadiabatic effects somewhat enhance the long-range Thomas interaction in quark model mesons, and yield estimates for the spin splittings of the lowest hybrid mesons. We comment on the implications of these spin corrections for previous calculations of exotic hybrid decays.

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Available abstract

We present the results of a first exploration of meson spin interactions in the flux-tube model of Isgur and Paton. The model supports the view that long-range spin effects other than kinematical (Thomas) are small. Nonadiabatic effects somewhat enhance the long-range Thomas interaction in quark model mesons, and yield estimates for the spin splittings of the lowest hybrid mesons. We comment on the implications of these spin corrections for previous calculations of exotic hybrid decays.

Key concepts: Meson, Physics, Spin (aerodynamics), Flux tube, Particle physics, Range (aeronautics), Quark, Yield (engineering)

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