期刊
PHYSICS LETTERS B
卷 494, 期 1-2, 页码 89-99出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0370-2693(00)01115-1
关键词
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We extrapolate lattice calculations of electric charge radii of the spin-1/2 baryon octet to the physical regime. The extrapolation procedure incorporates chiral perturbation theory and heavy quark effective theory in the appropriate limits. In particular, this procedure includes the non-analytic, logarithmic terms from pion loops. The electric charge radii of the nucleons and Sigma (-) obtained from the chiral extrapolations agree well with experimental data. We make predictions for the charge radii of the remaining baryons in anticipation of future experimental measurements. (C) 2000 Elsevier Science B.V. All rights reserved.
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