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Prog. Theor. Phys. Vol. 57 No. 3 (1977) pp. 979-987
Patterns of Scaling Violation and the Proton-Neutron Mass Difference
Takao Kawaguchi and
Hisao Nakkagawa*
Department of Physics, Kyoto University, Kyoto 606
*Institute for Natural Science, Nara University, Nara 631
(Received August 31, 1976)
Abstract:
It is shown that if the scaling violation appeared in the recent eN scattering experiments is explained by the theories with non-trivial anomalous dimensions the calculation of proton-neutron mass difference through the Cottingham type formula via one-photon exchange cannot give desired order of magnitude -2 MeV. Only candidate to be able to produce correct order is rather an unorthodox pattern of scaling violation which is not so favoured by the eN scattering experiments.
URL :
http://ptp.ipap.jp/link?PTP/57/979/
DOI : 10.1143/PTP.57.979
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