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arXiv · 0712.3731

Empirical Fit to Precision Inclusive Electron-Proton Cross Sections in the Resonance Region

M. E. Christy·P. B. Bosted
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Abstract

An empirical fit is described to measurements of inclusive inelastic electron-proton cross sections in the kinematic range of four-momentum transfer $0 \le Q^2<8$ GeV$^2$ and final state invariant mass $1.1<W<3.1$ GeV. The fit is constrained by the recent high precision longitudinal and transverse (L/T) separated cross section measurements from Jefferson Lab Hall C, un-separated Hall C measurements up to $Q^2$ $\approx 7.5$ ${\rm GeV}^2$, and photoproduction data at $Q^2 = 0$. Compared to previous fits, the present fit covers a wider kinematic range, fits both transverse and longitudinal cross sections, and features smooth transitions to the photoproduction data at $Q^2=0$ and DIS data at high $Q^2$ and $W$.

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M. E. Christy, P. B. Bosted. 2010-05-04. Empirical Fit to Precision Inclusive Electron-Proton Cross Sections in the Resonance Region. https://doi.org/10.1103/physrevc.81.055213

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