Abstract
An extremely simple but instructive, “toy” model is presented which shows that a small excess of pions in the nucleus can produce a significant change in the values expected for the Gottfried sum rule. The general question of the convergence of the sum rule and of the convergence of the experimental integral is also discussed. It is demonstrated that conclusions about the sum rule, based on deuterium data, are surprisingly model dependent. In contrast, it is stressed, that the Bjorken sum rule can be tested significantly using deuterium data.
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Epele, L.N., Fanchiotti, H., García Canal, C.A. et al. Nuclear pions and the Gottfried and Bjorken sum rules. Z. Phys. C - Particles and Fields 64, 285–290 (1994). https://doi.org/10.1007/BF01557399
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DOI: https://doi.org/10.1007/BF01557399