The Study of Backgrounds in Direct Photon Production at SPD NICA Energies

IF 0.4 Q4 PHYSICS, PARTICLES & FIELDS

Physics of Particles and Nuclei Letters Pub Date : 2024-08-14 DOI:10.1134/S1547477124701073

N. Yu. Ospennikov, A. V. Shipilova

引用次数: 0

Abstract

In this paper we study the signal-to-background ratios for the \(J{\text{/}}\psi \)-meson associated and direct photon main production processes at the energies of SPD NICA experiment using the Monte Carlo generator PYTHIA8. We extract the set of kinematic constraints allowing to improve signal-to-background ratios. We compare the results of our simulation for the direct photon spectra in different intervals of \({{p}_{T}}\) and \({{x}_{F}}\) with the experimental data and present the predictions for signal-to-background ratios in direct photon production at the NICA energy of \(\sqrt s = 27\) GeV.

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在 SPD NICA 能量下研究直接光子产生的背景

在本文中，我们使用蒙特卡洛发生器PYTHIA8研究了SPD NICA实验能量下的（J{\text{/}}\psi \）介子相关和直接光子主产过程的信噪比。我们提取了一组运动学约束，从而提高了信噪比。我们将不同区间的\({{p}_{T}}\)和\({{x}_{F}}\)直接光子光谱的模拟结果与实验数据进行了比较，并给出了在NICA能量为\(\sqrt s = 27\) GeV时直接光子产生的信噪比。

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.