Spin content of the nucleon in a non-topological chiral soliton model |
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Authors: | A Hosaka T Schäfer U Kalmbach |
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Institution: | 1. Institut für Theoretische Physik, Universit?t Regensburg, Universit?tsstrasse 31, W-8400, Regensburg, Germany 3. Institut für Theoretische Physik, Universit?t Gie?en, W-6300, Gie?en, Germany
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Abstract: | The spin content of the proton is investigated by studying the flavor singlet axial structure of the nucleon in a non-topological chiral soliton model. In order to construct a nucleon state we used the generator coordinate projection method as well as a coherent state for the meson wave function. Using a standard set of parameters we found the value g A 0 ? 0.44 for the flavor singlet axial vector coupling constant. This result is not far from that of a typical valence quark model. |
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