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Exclusive neutral pion electroproduction off protons from CLAS12 data at beam energy 6.535 GeV

V. B. Ryzhkov$^1$, A. N. Pavlova$^1$, A. A. Rusova$^{1,2}$, E. L. Isupov$^2$

Memoirs of the Faculty of Physics 2025. N 6.

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Annotation

The first results on the selection of $ep\to e'p'\pi^0$ events from the CLAS12 detector experimental data in the resonance area for the electron beam energy $E_e = 6.535$ GeV are presented in this report. The topology with two detected photons in the final state is analyzed; selections are introduced to isolate events of the single neutral pion electroproduction reaction; the invariant mass of photon pair distributions in various kinematic bins are obtained for the total energy of final hadrons in the $\gamma_v p$ center of mass system $W$ and the photon virtuality $Q^2$. The reaction yields are calculated. The topology with one detected photon is also considered; additional kinematic selections are introduced for this topology.

Received: 2025 June 10
Approved: 2026 January 14
PACS:
13.60.Le Meson production
Authors
V. B. Ryzhkov$^1$, A. N. Pavlova$^1$, A. A. Rusova$^{1,2}$, E. L. Isupov$^2$
$^1$Department of nuclear Physics, Faculty of Physics, Moscow State University\
$^2$Skobeltsyn Research Institute of Nuclear Physics, Moscow State University
Issue 6, 2025

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