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Prog. Theor. Phys. Supplement Extra Number (1965) pp. 250-260
Baryon Structure and Electromagnetic Properties
Stanley Fenster and
Yoichiro Nambu
The Enrico Fermi Institute for Nuclear Studies and the Department of Physics, The University of Chicago, Chicago, Illinois
(Received June 16, 1965)
Abstract:
We seek dynamical consequences of the assumption that the baryon is composed of slowly moving heavy objects (quarks). It is found that the hyperfine structure of hydrogen is relativity sensitive to structure, and the effect tends to reduce the present discrepancy between theory and experiment. It is also pointed out that all neutral baryons will have vanishing charge form factors according to the present model.
URL :
http://ptp.ipap.jp/link?PTPS/E65/250/
DOI : 10.1143/PTPS.E65.250
References:
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The numbers given here are taken from W. E. Cleland et al., Phys. Rev. Lett. 13 (1964), 202[APS].
The theoretical estimates may vary slightly due to higher order corrections.
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The formula was first given by A. C. Zemach, Phys. Rev. 104 (1956), 1771[APS].
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Among other possible corrections, a neutral counterpart of the β-decay interaction with the standard strength would contribute an amount ∼1 ×10-7 to |ε|.
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- It is a common feature of all composite models in which the spatial distributions of all components are identical. The same result obtained from the Bargmann-Wigner equation,
A. Salam, R. Delbourgo, and T. Strathdee, Proc. R. Soc. (London) A 284 (1965), 146;
B. Sakita and K. C. Wali, Phys. Rev. Lett. 14 (1965), 404 [APS]
seems to be a special case of this.
