M. A. Martemyanov, V. M. Baryshnikov, S. A. Bulychev, M. Bhattacharjee, Yu. F. Krechetov, V. V. Kulikov, A. A. Kulikovskaya, M. A. Matsiuk, A. Yu. Semenov, I. A. Tyapkin
{"title":"Testing Cosmic Ray Generators on ECal/MPD Data","authors":"M. A. Martemyanov, V. M. Baryshnikov, S. A. Bulychev, M. Bhattacharjee, Yu. F. Krechetov, V. V. Kulikov, A. A. Kulikovskaya, M. A. Matsiuk, A. Yu. Semenov, I. A. Tyapkin","doi":"10.1134/S1063779626701388","DOIUrl":null,"url":null,"abstract":"<p><b>Abstract</b>—One of the important subsystems of the MPD experiment is the cylindrical electromagnetic calorimeter ECal, consisting of 50 half-sectors, each of which has 768 cells (towers) of different types and spatial orientations. To calibrate the half-sector towers using cosmic ray muons, a technique was developed that is applicable to its horizontal arrangement. However, in a fully assembled calorimeter, the half-sectors are located on the surface of a horizontal cylinder in different positions relative to the vertical. In this paper, the effect of rotation of half-sector on calibration coefficients is presented for both experimental data and simulations. It is shown that the simulation based on modern parameterizations of the cosmic-ray muon flux is in good agreement with the experimental data. The influence of the angular distribution of the muon flux on the calibration accuracy is discussed.</p>","PeriodicalId":729,"journal":{"name":"Physics of Particles and Nuclei","volume":"57 5","pages":"1083 - 1087"},"PeriodicalIF":0.5000,"publicationDate":"2026-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Physics of Particles and Nuclei","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.1134/S1063779626701388","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PHYSICS, PARTICLES & FIELDS","Score":null,"Total":0}
引用次数: 0
Abstract—One of the important subsystems of the MPD experiment is the cylindrical electromagnetic calorimeter ECal, consisting of 50 half-sectors, each of which has 768 cells (towers) of different types and spatial orientations. To calibrate the half-sector towers using cosmic ray muons, a technique was developed that is applicable to its horizontal arrangement. However, in a fully assembled calorimeter, the half-sectors are located on the surface of a horizontal cylinder in different positions relative to the vertical. In this paper, the effect of rotation of half-sector on calibration coefficients is presented for both experimental data and simulations. It is shown that the simulation based on modern parameterizations of the cosmic-ray muon flux is in good agreement with the experimental data. The influence of the angular distribution of the muon flux on the calibration accuracy is discussed.
期刊介绍：
The journal Fizika Elementarnykh Chastits i Atomnogo Yadr of the Joint Institute for Nuclear Research (JINR, Dubna) was founded by Academician N.N. Bogolyubov in August 1969. The Editors-in-chief of the journal were Academician N.N. Bogolyubov (1970–1992) and Academician A.M. Baldin (1992–2001). Its English translation, Physics of Particles and Nuclei, appears simultaneously with the original Russian-language edition. Published by leading physicists from the JINR member states, as well as by scientists from other countries, review articles in this journal examine problems of elementary particle physics, nuclear physics, condensed matter physics, experimental data processing, accelerators and related instrumentation ecology and radiology.
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