May 26, 2026 to June 12, 2026
Jefferson Lab
US/Eastern timezone

Cross-Section Measurement of Deuteron Electro-Disintegration At Very High Missing Momenta and Large 4-Momentum Transfers (Q^{2}) [E12-10-003]

Jun 11, 2026, 9:15 AM
15m
CEBAF Center Rm. F113 (Jefferson Lab)

CEBAF Center Rm. F113

Jefferson Lab

12000 Jefferson Ave. Newport News VA 23606

Speaker

Pramila Pokhrel (Catholic University of America)

Description

The deuteron, as the simplest neutron-proton bound state, provides a unique opportunity as a starting point to study short-range nuclear dynamics and nucleon-nucleon interactions at high momentum transfer without any complications which usually arise from heavy atoms. At large four-momentum transfer ($Q^2 \approx 4.5~\mathrm{GeV}^2$) and Bjorken $x > 1$, E12-10-003 experiment which was conducted in Jefferson Lab experiment investigates exclusive deuteron electro-disintegration in the reaction $^2\mathrm{H}(e,e'p)n$. The reaction mechanism includes contributions from Plane Wave Impulse Approximation (PWIA), Final State Interaction (FSI), Isobar Configuration (IC) and Meson Exchange Current (MEC).
This work presents the cross-section analysis of the experimental data using theoretical and PWIA for a set of missing momenta ($P_{m}$) settings ranging from approximately 120 to 900 MeV/c, at different neutron-recoil angle ($\theta_{nq}$).
The measured cross-sections are studied as functions of missing momenta and neutron recoil angle in order to investigate the evolution of the reaction mechanism over a broad kinematic range. Comparisons between experimental data and theoretical models provide insight into the role of short-range nucleon interactions, the effects of final-state interactions, and the transition from low to high-momentum nuclear dynamics in the deuteron at large momentum transfer.

Author

Pramila Pokhrel (Catholic University of America)

Presentation materials