Adelaide Research & Scholarship
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https://hdl.handle.net/2440/10875
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| Type: | Journal article |
| Title: | Nucleon form factors and a nonpointlike diquark |
| Author: | Bloch, J. C. R. Roberts, Craig D. Schmidt, S. M. Bender, Axel Frank, M. R. |
| Citation: | Physical Review C, 1999; 60(6):062201 |
| Issue Date: | 1999 |
| ISSN: | 0556-2813 |
| School/Discipline: | School of Chemistry and Physics : Physics and Mathematical Physics School of Electrical and Electronic Engineering |
| Statement of Responsibility: | J. C. R. Bloch, C. D. Roberts, S. M. Schmidt, A. Bender, and M. R. Frank |
| Abstract: | Nucleon form factors are calculated on q²∈[0,3]GeV² using an ansatz for the nucleon’s Faddeev amplitude motivated by quark-diquark solutions of the relativistic Faddeev equation. Only the scalar diquark is retained, and it and the quark are confined. A good description of the data requires a nonpointlike diquark correlation with an electromagnetic radius of 0.8rπ. The composite, nonpointlike nature of the diquark is crucial. It provides for diquark-breakup terms that are of greater importance than the diquark photon absorption contribution. |
| Rights: | ©1999 The American Physical Society |
| DOI: | 10.1103/PhysRevC.60.062201 |
| Appears in Collections: | Special Research Centre for the Subatomic Structure of Matter publications |
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| hdl_10875.pdf | 80.98 kB | Adobe PDF | View/Open |
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