Empirical fit to precision inclusive electron-proton cross- sections in the resonance region

Dec, 2007
11 pages
Published in:
  • Phys.Rev.C 81 (2010) 055213
e-Print:
Report number:
  • JLAB-PHY-08-02

Citations per year

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Abstract: (arXiv)
An empirical fit is described to measurements of inclusive inelastic electron-proton cross sections in the kinematic range of four-momentum transfer 0Q2<80 \le Q^2<8 GeV2^2 and final state invariant mass 1.1<W<3.11.1<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 Q2Q^2 7.5\approx 7.5 GeV2{\rm GeV}^2, and photoproduction data at Q2=0Q^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 Q2=0Q^2=0 and DIS data at high Q2Q^2 and WW.
Note:
  • 11 pages, 5 figures; Fixed typographical errors in Equations 16 and 23. Fixed typographical error in definition of t (now defined in Equation 24)
  • 25.30.Fj
  • 13.60.Hb
  • 14.20.Gk
  • electron p: inclusive reaction
  • electron p: inelastic scattering
  • nucleon resonance: electroproduction
  • differential cross section: energy dependence
  • cross section: longitudinal
  • cross section: transverse
  • cross section: parametrization