Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1999-08-27
Phys.Lett. B474 (2000) 303-308
Physics
High Energy Physics
High Energy Physics - Theory
refinement of certain arguments
Scientific paper
10.1016/S0370-2693(99)01479-3
We inspect the excitation energy spectrum of a confining string in terms of solitons in an effective field theory model. The spectrum can be characterized by a spectral function, and twisting and bending of the string is manifested by the invariance of this function under a duality transformation. Both general considerations and numerical simulations reveal that the spectral function can be approximated by a simple rational form, which we propose becomes exact in the Yang-Mills theory.
Miettinen Mauri
Niemi Antti J.
Stroganov Yuri
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