Measuring the Neutron Timelike Electromagnetic Form Factor with the SND Detector

Results are presented from measuring the cross section and effective neutron timelike form factor. Data are collected in 2020–2021 at the VEPP-2000 collider in the 1891 to 2007 MeV center-of-mass range of energies. The general purpose nonmagnetic SND detector is used to detect neutron–antineutron ev...

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Veröffentlicht in:	Physics of atomic nuclei 2023-12, Vol.86 (6), p.1165-1172
Hauptverfasser:	Achasov, M. N., Barnyakov, A. Yu, Bedarev, E. V., Beloborodov, K. I., Berdyugin, A. V., Berkaev, D. E., Bogdanchikov, A. G., Botov, A. A., Dimova, T. V., Druzhinin, V. P., Zhabin, V. N., Zharinov, Yu. M., Kardapoltsev, L. V., Kasaev, A. S., Kovrizhin, D. P., Koop, I. A., Korol, A. A., Kupich, A. S., Kryukov, A. P., Lysenko, A. P., Melnikova, N. A., Muchnoi, N. Yu, Obrazovsky, A. E., Pakhtusova, E. V., Pugachev, K. V., Rastigeev, S. A., Rogovsky, Yu. A., Serednyakov, S. I., Silagadze, Z. K., Surin, I. K., Usov, Yu. V., Kharlamov, A. G., Shatunov, Yu. M., Shtol, D. A.
Format:	Artikel
Sprache:	eng
Schlagworte:	Antiparticles Cross-sections ELEMENTARY PARTICLES AND FIELDS/Experiment Form factors Particle and Nuclear Physics Physics Physics and Astronomy
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Beschreibung
Zusammenfassung:	Results are presented from measuring the cross section and effective neutron timelike form factor. Data are collected in 2020–2021 at the VEPP-2000 collider in the 1891 to 2007 MeV center-of-mass range of energies. The general purpose nonmagnetic SND detector is used to detect neutron–antineutron events. The time-of-flight approach is used to select events. The measured cross section is 0.4–0.6 nbn. The neutron form factor in the investigated range of energies varies from 0.3 to 0.2.
ISSN:	1063-7788 1562-692X
DOI:	10.1134/S1063778823060054