Form Factors in the Quark Resonance Model
| Autor: | Graczyk, K. M., Sobczyk, J. T. |
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| Rok vydání: | 2007 |
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| Zdroj: | Phys.Rev.D77:053001,2008; Erratum-ibid.D79:079903,2009 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevD.77.053001 |
| Popis: | Vector and axial form factors in the quark resonance model are analyzed with a combination of theoretical and phenomenological arguments. The new form of form factors is deduced from $\Delta$(1232) excitation models and available data. The vector part is shown to agree with the resonant contribution to electron-proton inclusive $F_2$ data. The axial part is obtained by finding a simultaneous fit to ANL and BNL $\frac{d \sigma}{d Q^2}$ neutrino scattering data. The best fit corresponds to $C_5^A(0)=0.88$ in the Rarita Schwinger formalism. Comment: 15 pages, 4 figures, 3 tables |
| Databáze: | arXiv |
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