Exchange currents in octet hyperon charge radii

Details Exchange currents in octet hyperon charge radii Exchange currents in octet hyperon charge radii

1998-09-06

arxiv.org/abs/nucl-th/9809015v1

Phys.Rev.C58:3666-3669,1998

Physics

Nuclear Physics

Nuclear Theory

9 pages, 2 eps figures, RevTex, accepted for publication in Phys.Rev.C

Scientific paper

10.1103/PhysRevC.58.3666

Octet hyperon charge radii are calculated in a chiral constituent quark model including electromagnetic exchange currents between quarks. In impulse approximation one observes a decrease of the hyperon charge radii with increasing strangeness. This effect is reduced by exchange currents. Due to exchange currents, the charge radius of the negatively charged hyperons are close to the proton charge radius.

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