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arXiv · hep-ph/0306194

The Proton Electromagnetic Form Factor $F_2$ and Quark Orbital Angular Momentum

Pankaj Jain·John P. Ralston
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Abstract

We analyze the proton electromagnetic form factor ratio $R(Q^{2})=QF_2(Q^{2})/F_1(Q^{2})$ as a function of momentum transfer $Q^{2}$ within perturbative QCD. We find that the prediction for $R(Q^{2})$ at large momentum transfer $Q$ depends on the exclusive quark wave functions, which are unknown. For a wide range of wave functions we find that $ QF_2/F_1 \sim\ const$ at large momentum transfer, in agreement with recent JLAB data.

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Pankaj Jain, John P. Ralston. 2003-06-21. The Proton Electromagnetic Form Factor $F_2$ and Quark Orbital Angular Momentum. https://doi.org/10.1007/bf02704468

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