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Review Article

Evaluation of the Integrated Cross Sections of Reactions of Exclusive Pion and Kaon Electroproduction off Protons in the Resonance Region at Photon Virtualities from 5 to 12 GeV$^2$

E. N. Golovach$^2$, V. A. Klimenko$^1$, E. L. Isupov$^2$, V. I. Mokeev$^4$, B. S. Ishkhanov$^{1,2}$, J. A. Skorodimina$^3$, G. V. Fedotov$^2$, V. Burkert$^4$, R. Gothe$^3$

Moscow University Physics Bulletin 2018. 73. N 4. P. 343

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Annotation

The integrated cross sections of the ep → eπ$^+$n, ep → eπ$^0$p, ep → eK$^+$Λ, and ep → eK$^+$Σ$^0$ reactions are evaluated in the energy range of nucleon resonance excitation at photon virtualities Q$^2$ from 5 to 12 GeV$^2$. These exclusive channels will be explored at photon virtualities Q$^2$ > 5 GeV$^2$ for the first time in future experiments with the CLAS12 detector. The cross-section evaluation is based on the extrapolation of exclusive contributions to the inclusive structure functions F1 and F2 from a region of Q2 < 5 GeV$^2$, in which the experimental data are available, to the region of higher Q2. This evaluation of cross sections is of particular importance in the development of the program of experiments with the CLAS12 detector for studying the structure of the ground and excited nucleon states, which may reveal the dynamics of strong interactions in the nonperturbative regime.

Received: 2017 July 20
Approved: 2019 January 24
PACS:
13.60.-r Photon and charged-lepton interactions with hadrons
Rissian citation:
Е. Н. Головач, В. А. Клименко, Е. Л. Исупов, В. И. Мокеев, Б. С. Ишханов, Ю. А. Скородумина, Г. В. Федотов, В. Буркерт, Р. Готе.
Оценка интегральных сечений реакций эксклюзивного электророждения пионов и каонов на протонах в резонансной области при виртуальностях фотонов от 5 до 12 ГэВ$^{2}$.
Вестн. Моск. ун-та. Сер. 3. Физ. Астрон. 2018. № 4. С. 3.
Authors
E. N. Golovach$^2$, V. A. Klimenko$^1$, E. L. Isupov$^2$, V. I. Mokeev$^4$, B. S. Ishkhanov$^{1,2}$, J. A. Skorodimina$^3$, G. V. Fedotov$^2$, V. Burkert$^4$, R. Gothe$^3$
$^1$Department of General Nuclear Physics, Faculty of physics, Lomonosov Moscow State University
$^2$Institute of Theoretical and Experimental Physics, National Research Center "Kurchatov Insti-tute
$^3$University of South Carolina, Department of Physics and Astronomy.
$^4$Thomas Jefferson National Accelerator facility
Issue 4, 2018

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