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Effect of gluon-exchange pair-currents on the ratio G(E(P))/G(M(P)) | M.M. Kaskulov
; P. Grabmayr
; | Date: |
15 Feb 2003 | Journal: | Phys.Rev. C67 (2003) 042201 | Subject: | nucl-th | Affiliation: | Tubingen U. | Abstract: | The effect of one-gluon-exchange (OGE) pair-currents on the ratio $mu_p G_E^p/G_M^p$ for the proton is investigated within a nonrelativistic constituent quark model (CQM) starting from $SU(6) imes O(3)$ nucleon wave functions, but with relativistic corrections. We found that the OGE pair-currents are important to reproduce well the ratio $mu_p G_E^p/G_M^p$. With the assumption that the OGE pair-currents are the driving mechanism for the violation of the scaling law we give a prediction for the ratio $mu_n G_E^n/G_M^n$ of the neutron. | Source: | arXiv, nucl-th/0302037 | Services: | Forum | Review | PDF | Favorites |
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