Features of the Production of Antiprotons with High Transverse Momenta at an Angle of 40° in Collisions of a 50-GeV Proton Beam with Nuclei

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发表日期：

2024年1月1日

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N. N. Antonov,
V. A. Viktorov,
V. A. Gapienko,
G. S. Gapienko,
I. V. Lobov,
F. N. Novoskol’tsev,
A. F. Prudkoglyad,
A. A. Semak,
I. P. Solodovnikov,
V. I. Terekhov,
M. N. Ukhanov,
S. S. Shimanskii

摘要

Data on the production of antiprotons at an angle of 40° in the laboratory system in collisions of 50-GeV protons with C, Al, Cu, and W nuclear targets have been obtained in the SPIN experiment (IHEP, Protvino, Russia). Invariant cross sections have been measured at transverse momenta up to p_T ≈ 2.6 GeV/c. The an-alysis of the momentum spectra has shown that multinucleon (multiquark) configurations inside a nucleus are involved in the production of antiprotons.