The proton structure function F2 in the resonance region
M. Osipenko, G. Ricco, M. Taiuti, M. Anghinolfi, M. Battaglieri, R. De, Vita, M. Ripani, the CLAS Collaboration
TL;DR
This paper reports a comprehensive measurement of the proton structure function F2 across a broad kinematic range, enabling new insights into resonance behavior and duality phenomena in quantum chromodynamics.
Contribution
It provides the first direct experimental evaluation of F2 moments and an in-depth analysis of Bloom-Gilman duality in the resonance region.
Findings
First direct evaluation of F2 moments from experimental data
Observation of Bloom-Gilman duality in the resonance region
Extensive data covering W up to 2.5 GeV and Q^2 from 0.1 to 4.5 GeV^2
Abstract
Unique measurement of the proton structure function F2 in a wide two-dimensional region of x and Q**2 has been reported. The accessible kinematics covers entire resonance region up to W=2.5 GeV in the Q**2 interval from 0.1 to 4.5 GeV**2. Obtained data allowed for the first time an evaluation of moments of the structure function F2 directly from experimental data as well as an intensive study of the Bloom-Gilman duality phenomenon.
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