9–13 Dec 2024
INFN, Laboratori Nazionali di Frascati
Europe/Rome timezone

Inclusive electron scattering in the resonance region at high Q^2

11 Dec 2024, 11:40
15m
Auditorium B. Touschek (INFN, Laboratori Nazionali di Frascati)

Auditorium B. Touschek

INFN, Laboratori Nazionali di Frascati

Via Enrico Fermi 54 00044 Frascati (Rome)

Speaker

Gabriel Niculescu (James Madison University)

Description

Using Thomas Jefferson's National Accelerator Facility's 10.6 GeV beam
and the CLAS12 large solid angle spectrometer, inclusive electron proton cross sections were measured over a wide kinematic range from the pion threshold up to an invariant mass W of 2.55 GeV, for ten Q^2 bins between 2.5 and 10.4 GeV^2. These results were validated against existing world data set in the overlap region and compared with
the resonant contributions deduced from exclusive meson electroproduction data measured with the CLAS at Q^2<5.0 GeV^2. Resonance-like structures are seen in the range of Q^2<10 GeV^2 in the CLAS12 inclusive electroproduction data.

This new data set indicates the opportunity to extend the information on the Q^2 evolution of the nucleon electroexcitation amplitudes to Q^2~ 10 GeV^2 and, looking forward to the JLab energy upgrade, even towards larger values of Q^2.

Primary author

Gabriel Niculescu (James Madison University)

Presentation materials