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Structure of the Nucleon

Bernstein, J. and Goldberger, M. L. (1958) Structure of the Nucleon. Reviews of Modern Physics, 30 (2). pp. 465-470. ISSN 0034-6861.

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It is generally believed that nucleons have some sort of internal structure. By this we mean that if one attempts to discuss their interactions with other particles and, in particular, with the electromagnetic field, one finds that they cannot be described in terms of kinematical quantities and static properties such as charge, spin, and magnetic moment. It is, of course, possible that in fact these should suffice and that our theoretical ideas about the fundamental interactions are so entirely wrong as to have not even phenomenological, qualitative validity. For example, one could conjecture that apparent deviations from a description in terms of point particles in electromagnetic interactions means a breakdown of quantum electrodynamics. Such arguments are difficult to combat except with successful, less radical explanations. In view of the perhaps qualified success of meson theory to correlate, via dispersion relations, much of the data in the field of pi-meson physics, we adopt the attitude that quantum field theory indeed has some finite domain of applicability and attempt a description of nucleon structure based on it.

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Additional Information:©1958 The American Physical Society One of us (J.B.) would like to express his gratitude to Professor Robert Oppenheimer for his kind hospitality at the Institute for Advanced Study. This paper is based largely on theoretical work carried out in collaboration with P. Federbush and S. B. Treiman, which will be published shortly elsewhere. Some of the ideas have been independently discussed by G. F. Chew, R. Karplus, S. G. Gasiorwicz, and F. Zachariasen, and we are indebted to Professor Chew for very helpful correspondence on this work which will also be published soon.
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Deposited On:25 Oct 2006
Last Modified:02 Oct 2019 23:24

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