Quark Coulomb Interactions and the Mass Difference of Mirror Nuclei

Details Quark Coulomb Interactions and the Mass Difference of Mirror Nuclei Quark Coulomb Interactions and the Mass Difference of Mirror Nuclei

2000-02-01

arxiv.org/abs/nucl-th/0002005v1

Phys. Rev. C63, 011303, (2001)

Physics

Nuclear Physics

Nuclear Theory

4 pages, 2 figs. sub. to Phys. Rev. Lett

Scientific paper

10.1103/PhysRevC.63.011303

We study the Okamoto-Nolen-Schiffer (ONS) anomaly in the binding energy of mirror nuclei at high density by adding a single neutron or proton to a quark gluon plasma. In this high-density limit we find an anomaly equal to two-thirds of the Coulomb exchange energy of a proton. This effect is dominated by quark electromagnetic interactions---rather than by the up-down quark mass difference. At normal density we calculate the Coulomb energy of neutron matter using a string-flip quark model. We find a nonzero Coulomb energy because of the neutron's charged constituents. This effect could make a significant contribution to the ONS anomaly.

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