title: Ð Ð¾Ð¶Ð´ÐµÐ½Ð¸Ðµ Ð¿ÑÑÐ¼ÑÑ ÑÐ¾ÑÐ¾Ð½Ð¾Ð² Ð² ÑÐ¸ÑÑÐµÐ¼Ðµ ÑÑÐ¾Ð»ÐºÐ½Ð¾Ð²ÐµÐ½Ð¸Ð¹ ÑÐ´ÐµÑ He+Au Ð¿ÑÐ¸ ÑÐ½ÐµÑÐ³Ð¸Ð¸ 200 ÐÑÐ/Ð½ÑÐºÐ»Ð¾Ð½
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Direct photon production in the 3He + Au collision system at 200 GeV/nucleon energy
Creators: name: ÐÐ°Ð²Ð·Ð´ÐµÑÐ¸Ð½, ÐÐ°Ð²ÐµÐ»
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2024
Subjects: Ð¤Ð¾ÑÐ¾Ð½Ñ
ÐÐ»Ð°Ð·Ð¼Ð° (ÑÐ¸Ð·.)
ÐÐ¾Ð½Ñ
Ð¼ÐµÑÐ¾Ð´ Ð²Ð½ÐµÑÐ½ÐµÐ¹ ÐºÐ¾Ð½Ð²ÐµÑÑÐ¸Ð¸
Ð¸Ð·Ð±ÑÑÐ¾ÑÐ½Ð¾Ðµ ÑÐ¾ÑÐ¾Ð½Ð½Ð¾Ðµ Ð¾ÑÐ½Ð¾ÑÐµÐ½Ð¸Ðµ
external conversion method
excess photon ratio

description: Ð¢ÐµÐ¼Ð° Ð²ÑÐ¿ÑÑÐºÐ½Ð¾Ð¹ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ: Â«Ð Ð¾Ð¶Ð´ÐµÐ½Ð¸Ðµ Ð¿ÑÑÐ¼ÑÑ ÑÐ¾ÑÐ¾Ð½Ð¾Ð² Ð² ÑÐ¸ÑÑÐµÐ¼Ðµ ÑÑÐ¾Ð»ÐºÐ½Ð¾Ð²ÐµÐ½Ð¸Ð¹ ÑÐ´ÐµÑ 3He + Au Ð¿ÑÐ¸ ÑÐ½ÐµÑÐ³Ð¸Ð¸ 200 ÐÑÐ/Ð½ÑÐºÐ»Ð¾Ð½Â». ÐÐ°Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¿Ð¾ÑÐ²ÑÑÐµÐ½Ð° Ð¸Ð·ÑÑÐµÐ½Ð¸Ñ Ð¾ÑÐ¾Ð±ÐµÐ½Ð½Ð¾ÑÑÐµÐ¹ ÑÐ¾Ð¶Ð´ÐµÐ½Ð¸Ñ Ð¿ÑÑÐ¼ÑÑ ÑÐ¾ÑÐ¾Ð½Ð¾Ð² Ð½Ð¸Ð·ÐºÐ¸Ñ Ð¸ Ð¿ÑÐ¾Ð¼ÐµÐ¶ÑÑÐ¾ÑÐ½ÑÑ ÑÐ½ÐµÑÐ³Ð¸Ð¹ Ð² ÑÐ¸ÑÑÐµÐ¼Ðµ 3He + Au Ð¿ÑÐ¸ ÑÐ½ÐµÑÐ³Ð¸Ð¸ âsNN = 200 ÐÑÐ/Ð½ÑÐºÐ»Ð¾Ð½. Ð ÑÐ°Ð±Ð¾ÑÐµ Ð¸Ð·Ð¼ÐµÑÑÐµÑÑÑ Ð²ÑÑÐ¾Ð´ Ð¸Ð½ÐºÐ»ÑÐ·Ð¸Ð²Ð½ÑÑ ÑÐ¾ÑÐ¾Ð½Ð¾Ð² 3He + Au â Î³ inclusive + X Ð¼ÐµÑÐ¾Ð´Ð¾Ð¼ Ð²Ð½ÐµÑÐ½ÐµÐ¹ ÐºÐ¾Ð½Ð²ÐµÑÑÐ¸Ð¸ Ð² Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ðµ Ð´ÐµÑÐµÐºÑÐ¾ÑÐ° VTX, Ð¾ÑÐµÐ½Ð¸Ð²Ð°ÐµÑÑÑ Ð´Ð¾Ð»Ñ Ï0-ÑÐ°ÑÐ¿Ð°Ð´Ð½ÑÑ ÑÐ¾ÑÐ¾Ð½Ð¾Ð² Ð² ÐºÐ¾Ð½Ð²ÐµÑÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ Ð²ÑÐ±Ð¾ÑÐºÐµ, Ð¼ÐµÑÐ¾Ð´Ð¾Ð¼ ÐÐ¾Ð½ÑÐµ-ÐÐ°ÑÐ»Ð¾ Ð²ÑÑÐ¸ÑÐ»ÑÐµÑÑÑ Ð¾Ð±ÑÐ¸Ð¹ ÑÐ¿ÐµÐºÑÑ ÑÐ°ÑÐ¿Ð°Ð´Ð½ÑÑ ÑÐ¾ÑÐ¾Ð½Ð¾Ð². ÐÑÐ¾Ð²Ð¾Ð´Ð¸ÑÑÑ Ð¿ÑÐµÐ´Ð²Ð°ÑÐ¸ÑÐµÐ»ÑÐ½Ð°Ñ Ð¾Ð±ÑÐ°Ð±Ð¾ÑÐºÐ° ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐ°Ð»ÑÐ½ÑÑ Ð´Ð°Ð½Ð½ÑÑ. ÐÐ¿Ð¸ÑÑÐ²Ð°ÐµÑÑÑ Ð¼ÐµÑÐ¾Ð´Ð¸ÐºÐ° Ð¸Ð·Ð¼ÐµÑÐµÐ½Ð¸Ñ ÑÐ°ÐºÐ¸Ñ Ð²ÐµÐ»Ð¸ÑÐ¸Ð½ ÐºÐ°Ðº Ð¸Ð·Ð±ÑÑÐ¾ÑÐ½Ð¾Ðµ ÑÐ¾ÑÐ¾Ð½Ð½Ð¾Ðµ Ð¾ÑÐ½Ð¾ÑÐµÐ½Ð¸Ðµ, Ð¸Ð½Ð²Ð°ÑÐ¸Ð°Ð½ÑÐ½ÑÐ¹ ÑÐ¿ÐµÐºÑÑ, ÑÐ»Ð»Ð¸Ð¿ÑÐ¸ÑÐµÑÐºÐ¸Ð¹ Ð¿Ð¾ÑÐ¾Ðº. ÐÐ° Ð¾ÑÐ½Ð¾Ð²Ðµ Ð¿Ð¾Ð»ÑÑÐµÐ½Ð½ÑÑ Ð´Ð°Ð½Ð½ÑÑ Ð¾ÑÐµÐ½Ð¸Ð²Ð°ÑÑÑÑ ÑÐ¸ÑÑÐµÐ¼Ð°ÑÐ¸ÑÐµÑÐºÐ¸Ðµ Ð½ÐµÐ¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð½Ð¾ÑÑÐ¸ Ð¸Ð·Ð±ÑÑÐ¾ÑÐ½Ð¾Ð³Ð¾ Ð¾ÑÐ½Ð¾ÑÐµÐ½Ð¸Ñ RÎ³. ÐÐ±ÑÑÐ¶Ð´Ð°ÑÑÑÑ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÑ Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð½ÑÑ Ð¸Ð·Ð¼ÐµÑÐµÐ½Ð¸Ð¹, Ð¿ÑÐ¸Ð²Ð¾Ð´ÑÑÑÑ Ð¿ÐµÑÑÐ¿ÐµÐºÑÐ¸Ð²Ñ Ð´Ð»Ñ Ð´Ð°Ð»ÑÐ½ÐµÐ¹ÑÐ¸Ñ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ð¹.
description: The subject of this graduate qualification work is Â«Direct photon production in the 3He + Au collision system at 200 GeV/nucleon energyÂ». Present work is devoted to the study of specific features of direct production of photons of low and intermediate energies in the 3He + Au collision system at âsNN = 200 GeV/nucleon energy. In this work, inclusive photon yield 3He + Au â Î³ inclusive + X is measured using external conversion method in the VTX detector material, the fraction of Ï0-decay photons in conversion sample is estimated, and the total spectrum of decay photons is obtained using Monte Carlo method. Preprocessing of experimental data is carried out. The procedure of measuring such quantities as excess photon ratio, invariant spectrum and elliptic flow is described. Based on the results obtained, the systematic uncertainties of the excess ratio RÎ³ are estimated. The results of the measurements are discussed and prospects for further research are outlined.