Measurement of the inclusive e(+/-) p scattering cross section at high inelasticity y and of the structure function F-L
H1 Collaboration (ukupan broj autora: 219)
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A measurement is presented of the inclusive neutral current e(+/-) p scattering cross section using data collected by the H1 experiment at HERA during the years 2003 to 2007 with proton beam energies E-p of 920, 575, and 460 GeV. The kinematic range of the measurement covers low absolute four-momentum transfers squared, 1.5 GeV2 LT Q(2) LT 120 GeV2, small values of Bjorken x, 2.9 . 10(-5) LT x LT 0.01, and extends to high inelasticity up to y = 0.85. The structure function F-L is measured by combining the new results with previously published H1 data at E-p = 920 GeV and E-p = 820 GeV. The new measurements are used to test several phenomenological and QCD models applicable in this low Q(2) and low x kinematic domain.
Source:European Physical Journal C. Particles and Fields, 2011, 71, 3