Double-pion electroproduction off protons in deuterium: Quasifree cross sections and final-state interactions
DOI
10.1103/PhysRevC.109.065205
Document Type
Journal Article
Publication Date
6-1-2024
Publication Title
Physical Review C
Volume
109
Issue
6
ISSN
24699985
Abstract
The single-differential and fully integrated cross sections for quasifree π+π- electroproduction off protons bound in deuterium have been extracted for the first time. The experimental data were collected at Jefferson Laboratory with the CLAS detector. The measurements were performed in the kinematic region of the invariant mass W from 1.3 to 1.825 GeV and the photon virtuality Q2 from 0.4 to 1.0 GeV2. Sufficient experimental statistics allowed for narrow binning in all kinematic variables, while maintaining a small statistical uncertainty. The extracted cross sections were compared with the corresponding cross sections off free protons, which allowed us to obtain an estimate of the contribution from events in which interactions between the final-state hadrons and the spectator neutron took place.
Open Access
Green Accepted
Preprint
Repository Citation
Skorodumina, I., Fedotov, G., Gothe, R., Achenbach, P., Akbar, Z., Alvarado, J., Amaryan, M., Armstrong, W., Atac, H., Avakian, H., Ayerbe Gayoso, C., Baashen, L., Baltzell, N., Barion, L., Battaglieri, M., Benkel, B., & Benmokhtar, F. (2024). Double-pion electroproduction off protons in deuterium: Quasifree cross sections and final-state interactions. Physical Review C, 109 (6). https://doi.org/10.1103/PhysRevC.109.065205