Open AccessStudy of the trigger on nucleus-nucleus interactions for the BM@N experiment using a Geant4 + QGSM software package
Author(s) -
N. A. Lashmanov,
S. Sedykh,
V. I. Yurevich
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1439/1/012004
Subject(s) - monte carlo method , software , software package , nucleus , electromagnetic shielding , electron , computational physics , function (biology) , simulation , physics , simulation software , statistical physics , computer science , nuclear physics , statistics , mathematics , medicine , biology , operating system , quantum mechanics , evolutionary biology , psychiatry
Monte-Carlo simulation was used to study the background conditions which affect the performance of the trigger system of the BM@N experiment. A GEANT4 + QGSM software package was used for the simulation. The influence of the background from δ-electrons was estimated and measures to minimize this background were evaluated. Addition of lead shielding and a small change in the geometry of the target zone allow to reduce the background. The efficiency of the modified trigger system was calculated for Au+Au collisions as a function of the impact parameter. The efficiency is 100% for central and semi-central collisions.