Study of the ϕπ0-System Production in the Charge Exchange Reaction of the 29 GeV Pion Beam with the Berrilium Target of the VES Setup

IF 0.4 Q4 PHYSICS, PARTICLES & FIELDS

Physics of Particles and Nuclei Letters Pub Date : 2025-04-23 DOI:10.1134/S1547477124701966

V. Dorofeev, V. G. Gotman, A. V. Ivashin, I. A. Kachaev, Yu. A. Khokhlov, M. S. Kholodenko, V. I. Lisin, V. D. Matveev, E. V. Nazarov, A. N. Plekhanov, D. I. Ryabchikov, A. A. Shumakov, V. P. Sugonyaev, A. M. Zaitsev

引用次数: 0

Abstract

We observed \(2403 \pm 98\) events of \({{\pi }^{ - }} + Be \to \phi {{\pi }^{0}} + A{\text{*}}\) reaction collected in exposition of the VES setup Be target by \(2.5 \times {{10}^{{11}}}\) \({{\pi }^{ - }}\)-mesons with the 29 GeV momentum. A –\(\phi {{\pi }^{0}}\) production in a vector state is mostly observed with the recoil \(\Delta (1232)\) isobar in a process with \(\pi \) exchange dominance. The \(\phi {{\pi }^{0}}\) mass spectrum has a complicated shape.

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研究 29 GeV 离子束与 VES 装置中的铍靶发生电荷交换反应时产生的 ϕπ0 系统

我们用动量为29gev的\(2.5 \times {{10}^{{11}}}\)\({{\pi }^{ - }}\) -介子观察了在VES建立Be靶中收集的\({{\pi }^{ - }} + Be \to \phi {{\pi }^{0}} + A{\text{*}}\)反应的\(2403 \pm 98\)事件。在一个具有\(\pi \)交换优势的过程中，在矢量状态下A - \(\phi {{\pi }^{0}}\)的产生主要是与反冲\(\Delta (1232)\)等压线一起观察到的。\(\phi {{\pi }^{0}}\)质谱具有复杂的形状。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Physics of Particles and Nuclei Letters PHYSICS, PARTICLES & FIELDS-

CiteScore

0.80

自引率

20.00%

发文量

108

期刊介绍： The journal Physics of Particles and Nuclei Letters, brief name Particles and Nuclei Letters, publishes the articles with results of the original theoretical, experimental, scientific-technical, methodological and applied research. Subject matter of articles covers: theoretical physics, elementary particle physics, relativistic nuclear physics, nuclear physics and related problems in other branches of physics, neutron physics, condensed matter physics, physics and engineering at low temperatures, physics and engineering of accelerators, physical experimental instruments and methods, physical computation experiments, applied research in these branches of physics and radiology, ecology and nuclear medicine.