The Rotationally Improved Skyrmion, or ``RISKY''

Details The Rotationally Improved Skyrmion, or ``RISKY'' The Rotationally Improved Skyrmion, or ``RISKY''

1995-04-18

arxiv.org/abs/hep-ph/9504329v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Talk presented at the 1995 Int'l Workshop on Nuclear & Particle Physics, Seoul, Korea

Scientific paper

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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