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arXiv · hep-ph/9504329

The Rotationally Improved Skyrmion, or ``RISKY''

Nick Dorey·Michael Mattis
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Abstract

The perceived inability of the Skyrme model to reproduce pseudovector pion-baryon coupling has come to be known as the ``Yukawa problem.'' In this talk, we review the complete solution to this problem. The solution involves a new configuration known as the rotationally improved Skyrmion, or ``RISKY,'' in which the hedgehog structure is modified by a small quadrupole distortion. We illustrate our ideas both in the Skyrme model and in a simpler model with a global U(1) symmetry.

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Nick Dorey, Michael Mattis. 1995-04-18. The Rotationally Improved Skyrmion, or ``RISKY''. https://arxiv.org/abs/hep-ph/9504329

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