The DIS cross-sections ratio R= σL/σT at small x from HERA data
Abstract
We extract the deep inelastic scattering cross-sections ratio R= σ L/σ T in the range 10-4 ≤ x ≤ 10-1 from F2 HERA data using very simple relations based on perturbative QCD. The result depends on only one parameter δ, being x-δ the behavior of the parton densities at low x, which has been determined recently with a good accuracy by the H1 group.
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