CROSS SECTION OF THE PROCESS 𝑒+π‘’βˆ’ β†’ 𝑛𝑛 NEAR THE THRESHOLD

The 𝑒+π‘’βˆ’ β†’ 𝑛𝑛 cross section was measured at energies from the threshold to 1908 MeV in the center of mass (c.m.). The experiment to measure the cross section has been carried out at the VEPP-2000 𝑒+π‘’βˆ’ collider in 13 energy points. The SND detector is used to detect the produced neutron-antineutrons (𝑛𝑛) events. A special time measurement system on the calorimeter was used to select the time-delayed 𝑛𝑛 events. The measured 𝑒+π‘’βˆ’ β†’ 𝑛𝑛 cross section is 0.4–0.6 nb. The neutron effective timelike form factor in the energy range under study varies from 0.3 to 0.6.

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Journal
ЯдСрная Ρ„ΠΈΠ·ΠΈΠΊΠ°
Published
2024-12-15
DOI
https://doi.org/10.31857/s0044002724050057
Primary Topic
Particle physics theoretical and experimental studies
Type
article
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article

CROSS SECTION OF THE PROCESS 𝑒+π‘’βˆ’ β†’ 𝑛𝑛 NEAR THE THRESHOLD

A. P. Kryukov, I. K. Surin, L. Kardapoltsev, A. A. Botov et al.
ЯдСрная Ρ„ΠΈΠ·ΠΈΠΊΠ°
Particle physics theoretical and experimental studies
article

CROSS SECTION OF THE PROCESS 𝑒+π‘’βˆ’ β†’ 𝑛𝑛 NEAR THE THRESHOLD

A. P. Kryukov, I. K. Surin, L. Kardapoltsev, A. A. Botov, Π•. Π’. ΠŸΠ°Ρ…Ρ‚ΡƒΡΠΎΠ²Π°, N. Yu. Muchnoy, A. A. Korol, A. G. Bogdanchikov, A. Kupich, A. Barnyakov, Yu. M. Zharinov, A. P. Lysenko, A. V. Berdyugin, N. A. Melnikova, V. N. Zhabin, A. S. Kasaev, Y. Usov, D. Shtol, A. A. Katsin, Π—. К. Π‘ΠΈΠ»Π°Π³Π°Π΄Π·Π΅, К. Π’. ΠŸΡƒΠ³Π°Ρ‡Π΅Π², S. A. Rastigeev, E. V. Bedarev, S. P. Sherstyuk, T. Dimova, V. P. Druzhinin, Yu. A. Rogovsky, D. P. Kovrizhin, M. N. Achasov, S. I. Serednyakov, A. G. Kharlamov, Yu. M. Shatunov, D. E. Chistyakov, A. E. Obrazovsky, A. I. Senchenko, K. Beloborodov
article en

Abstract

The 𝑒+π‘’βˆ’ β†’ 𝑛𝑛 cross section was measured at energies from the threshold to 1908 MeV in the center of mass (c.m.). The experiment to measure the cross section has been carried out at the VEPP-2000 𝑒+π‘’βˆ’ collider in 13 energy points. The SND detector is used to detect the produced neutron-antineutrons (𝑛𝑛) events. A special time measurement system on the calorimeter was used to select the time-delayed 𝑛𝑛 events. The measured 𝑒+π‘’βˆ’ β†’ 𝑛𝑛 cross section is 0.4–0.6 nb. The neutron effective timelike form factor in the energy range under study varies from 0.3 to 0.6.

ЯдСрная Ρ„ΠΈΠ·ΠΈΠΊΠ°Vol. 87(5)
Novosibirsk State University (RU), Budker Institute of Nuclear Physics (RU)
Affordable and clean energy
Openalex Percentile: Top 93%
Particle physics theoretical and experimental studies
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