Form Factors in the Quark Resonance Model

Details Form Factors in the Quark Resonance Model Form Factors in the Quark Resonance Model

2007-07-24

arxiv.org/abs/0707.3561v2

Phys.Rev.D77:053001,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

15 pages, 4 figures, 3 tables

Scientific paper

10.1103/PhysRevD.77.053001

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.

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