Investigations of Characteristics for Arich Detector with D*±-Mesons Decay at Belle II Experiment Using the Monte Carlo Method

IF 0.5 4区物理与天体物理 Q4 PHYSICS, MULTIDISCIPLINARY

Journal of Contemporary Physics (Armenian Academy of Sciences) Pub Date : 2023-06-18 DOI:10.1134/S1068337223010036

N. Akopov, G. Ghevondyan, V. Muradyan, G. Karyan

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Abstract

An estimate is given of the simulation with the Monte Carlo (MC) method using the signal to background ratios in invariant mass spectra of pion-kaon system for decays of D⁰ → K⁻π⁺ and \(\overline {{{D}^{0}}} \) → K⁺π⁻ originated from decays of D*⁺ → D⁰π⁺ and D*⁻ → \(\overline {{{D}^{0}}} \)π⁻ at different momentum/angular bins of pions (when pion is coming to the ARICH acceptance) and kaons (kaon is in ARICH acceptance). The tabulated data for mentioned ratios will be used by Belle II collaboration to study the ARICH performance. Then the results of ARICH efficiencies and misidentification probability extracted based on tabulated ratios, will become important ingredient for future physics analysis.

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用蒙特卡罗方法研究贝尔II实验中D*±-介子衰减的arrich探测器的特性

利用pion-kaon系统不变质谱中的信本比，用蒙特卡罗(MC)方法估计了D0→K−π+和\(\overline {{{D}^{0}}} \)→K+π−的衰减源于D*+→D0π+和D*−→\(\overline {{{D}^{0}}} \) π−在不同动量/角域的π子(当介子达到ARICH接受度时)和kaon(介子处于ARICH接受度)的衰减。上述比率的表格数据将被Belle II合作用于研究ARICH性能。然后，基于表格比率提取的ARICH效率和错误识别概率的结果将成为未来物理分析的重要组成部分。

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

Journal of Contemporary Physics (Armenian Academy of Sciences) PHYSICS, MULTIDISCIPLINARY-

CiteScore

1.00

自引率

66.70%

发文量

审稿时长

6-12 weeks

期刊介绍： Journal of Contemporary Physics (Armenian Academy of Sciences) is a journal that covers all fields of modern physics. It publishes significant contributions in such areas of theoretical and applied science as interaction of elementary particles at superhigh energies, elementary particle physics, charged particle interactions with matter, physics of semiconductors and semiconductor devices, physics of condensed matter, radiophysics and radioelectronics, optics and quantum electronics, quantum size effects, nanophysics, sensorics, and superconductivity.