[Clas_hadron] APS April Meeting abstract

[Astrid Hiller Blin]

Hello!

Please find my abstract for the APS April meeting, session E11, appended
below.

All the best,
Astrid


*Polarized and unpolarized proton structure in the resonance region:
exclusive data-driven insights*
*Nucleon resonance contributions to the inclusive proton structure
functions are computed from resonance electroexcitation amplitudes in the
mass range up to 1.75 GeV extracted from CLAS exclusive meson
electroproduction data. Taking into account interference effects between
nucleon resonances, the resonant contributions are compared with inclusive
proton structure functions evaluated from the available data in the
resonance region. Resonance contributions remain substantial over the
entire range of photon virtualities < 4 GeV^2 where electroexcitation
amplitudes have been obtained. Their Q^2 evolution displays pronounced
differences in the first, second and third resonance regions. We compare
the structure functions in the resonance region with those computed from
parton distributions fitted to deep-inelastic scattering data, and
extrapolated to the resonance region, providing new quantitative
assessments of quark-hadron duality in inclusive electron-proton
scattering. Ultimately, this paves the path to a physically founded
combined description of the connection between the low and high-energy
regimes.*

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Astrid Hiller Blin (PhD)
Postdoctoral fellow
Thomas Jefferson National
Accelerator Facility (Jefferson Lab)
12000 Jefferson Ave
Newport News, VA 23606, USA
Phone: +1 (757) 291 6890
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