title: Ð¡Ð¿ÐµÐºÑÑÑ Ð¿Ð¾ Ð¿Ð¾Ð¿ÐµÑÐµÑÐ½Ð¾Ð¼Ñ Ð¸Ð¼Ð¿ÑÐ»ÑÑÑ -Ð¼ÐµÐ·Ð¾Ð½Ð¾Ð² Ð² ÑÑÐ¾Ð»ÐºÐ½Ð¾Ð²ÐµÐ½Ð¸ÑÑ 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° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Transverse momentum spectra of eta-mesons in p+Al collisions at 200 GeV
Creators: name: Ð¨Ð°ÑÐ¸Ð¿Ð¾, ÐÐ¸ÐºÐ¸ÑÐ°
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: ÑÐ¿ÐµÐºÑÑÑ Ð¿Ð¾ Ð¿Ð¾Ð¿ÐµÑÐµÑÐ½Ð¾Ð¼Ñ Ð¸Ð¼Ð¿ÑÐ»ÑÑÑ
ÑÐ°ÐºÑÐ¾ÑÑ ÑÐ´ÐµÑÐ½Ð¾Ð¹ Ð¼Ð¾Ð´Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¸
ÑÑÐ°-Ð¼ÐµÐ·Ð¾Ð½Ñ
p+Al
200 ÐÑÐ
PHENIX
RHIC
transverse momentum spectra
nuclear modification factors
eta-mesons
200 GeV

description: ÐÐ°Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¿Ð¾ÑÐ²ÑÑÐµÐ½Ð° ÑÐ¿ÐµÐºÑÑÐ°Ð¼ Ð¿Ð¾ Ð¿Ð¾Ð¿ÐµÑÐµÑÐ½Ð¾Ð¼Ñ Ð¸Ð¼Ð¿ÑÐ»ÑÑÑ Î·-Ð¼ÐµÐ·Ð¾Ð½Ð¾Ð², ÐºÐ¾Ð½ÐµÑÐ½Ð¾Ð¹ ÑÐµÐ»ÑÑ ÑÐ²Ð»ÑÐµÑÑÑ Ð¿Ð¾ÑÑÑÐ¾ÐµÐ½Ð¸Ðµ ÑÐ°ÐºÑÐ¾ÑÐ¾Ð² ÑÐ´ÐµÑÐ½Ð¾Ð¹ Ð¼Ð¾Ð´Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¸ Î·-Ð¼ÐµÐ·Ð¾Ð½Ð¾Ð² Ñ ÑÐµÐ»ÑÑ Ð¸Ð·ÑÑÐµÐ½Ð¸Ñ ÑÑÑÐµÐºÑÐ° Ð³Ð°ÑÐµÐ½Ð¸Ñ ÑÑÑÑÐ¹ Ð² ÑÑÐ¾Ð»ÐºÐ½Ð¾Ð²ÐµÐ½Ð¸ÑÑ p+Al. Ð¦Ð¸ÐºÐ» ÑÑÐ¾Ð»ÐºÐ½Ð¾Ð²ÐµÐ½Ð¸Ð¹ p+Al Ð¿ÑÐ¸ ÑÐ½ÐµÑÐ³Ð¸Ð¸ 200 ÐÑÐ Ð¿ÑÐ¾Ð²Ð¾Ð´Ð¸Ð»ÑÑ Ð½Ð° ÐºÐ¾Ð»Ð»Ð°Ð¹Ð´ÐµÑÐµ RHIC Ð² 2016 Ð³Ð¾Ð´Ñ, ÑÐ¾Ð±ÑÑÐ¸Ñ ÑÑÐ¾Ð»ÐºÐ½Ð¾Ð²ÐµÐ½Ð¸Ñ ÑÐµÐ³Ð¸ÑÑÑÐ¸ÑÐ¾Ð²Ð°Ð»Ð¸ÑÑ Ð´ÐµÑÐµÐºÑÐ¾ÑÐ¾Ð¼ PHENIX. Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ Ð°Ð½Ð°Ð»Ð¸Ð·Ð¸ÑÑÑÑÑÑ Ð´Ð°Ð½Ð½ÑÐµ, Ð¿Ð¾Ð»ÑÑÐµÐ½Ð½ÑÐµ Ð½Ð° ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐµ: Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð½ÑÐ¼Ð¸ Ð¼ÐµÑÐ¾Ð´Ð°Ð¼Ð¸ Ð¿ÑÐ¾Ð²Ð¾Ð´Ð¸ÑÑÑ Ð¾ÑÐ±Ð¾Ñ Ð´Ð°Ð½Ð½ÑÑ, Ð¸Ð·Ð¼ÐµÑÐµÐ½Ð¸Ðµ Ð¿ÐµÑÐ²Ð¸ÑÐ½Ð¾Ð³Ð¾ Ð²ÑÑÐ¾Ð´Ð° Ð¼ÐµÐ·Ð¾Ð½Ð¾Ð², Ð¾ÑÐµÐ½ÐºÐ° ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸ ÑÐµÐ³Ð¸ÑÑÑÐ°ÑÐ¸Ð¸ Ð´ÐµÑÐµÐºÑÐ¾ÑÐ°, Ð¿Ð¾ÑÑÑÐ¾ÐµÐ½Ð¸Ðµ ÑÐ¿ÐµÐºÑÑÐ¾Ð² ÑÐ¾Ð¶Ð´ÐµÐ½Ð¸Ñ Î·-Ð¼ÐµÐ·Ð¾Ð½Ð¾Ð² Ð¸, Ð½Ð°ÐºÐ¾Ð½ÐµÑ, Ð¸Ñ ÑÐ°ÐºÑÐ¾ÑÐ¾Ð² ÑÐ´ÐµÑÐ½Ð¾Ð¹ Ð¼Ð¾Ð´Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¸. Ð ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐµ Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ Ð±ÑÐ»Ð¸ Ð¿Ð¾Ð»ÑÑÐµÐ½Ñ ÑÐ¿ÐµÐºÑÑÑ Ð¸ ÑÐ°ÐºÑÐ¾ÑÑ ÑÐ´ÐµÑÐ½Ð¾Ð¹ Ð¼Ð¾Ð´Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¸, ÐºÐ¾ÑÐ¾ÑÑÐµ Ð¾ÐºÐ°Ð·Ð°Ð»Ð¸ÑÑ Ð¼ÐµÐ½ÑÑÐµ ÐµÐ´Ð¸Ð½Ð¸ÑÑ: ÑÑÐ¾ ÑÐºÐ°Ð·ÑÐ²Ð°ÐµÑ Ð½Ð° Ð²Ð¾Ð·Ð¼Ð¾Ð¶Ð½Ð¾Ðµ Ð¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°Ð½Ð¸Ðµ ÐºÐ²Ð°ÑÐº-Ð³Ð»ÑÐ¾Ð½Ð½Ð¾Ð¹ Ð¿Ð»Ð°Ð·Ð¼Ñ Ð² ÑÑÐ¾Ð»ÐºÐ½Ð¾Ð²ÐµÐ½Ð¸ÑÑ p+Al Ð¿ÑÐ¸ ÑÐ½ÐµÑÐ³Ð¸Ð¸ 200 ÐÑÐ. Ð ÐµÐ·ÑÐ»ÑÑÐ°ÑÑ Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ Ð¼Ð¾Ð³ÑÑ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°ÑÑÑÑ Ð´Ð»Ñ ÑÑÐ¾ÑÐ½ÐµÐ½Ð¸Ñ Ð²Ð¾Ð·Ð¼Ð¾Ð¶Ð½Ð¾ÑÑÐ¸ Ð¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°Ð½Ð¸Ñ ÐºÐ²Ð°ÑÐº-Ð³Ð»ÑÐ¾Ð½Ð½Ð¾Ð¹ Ð¿Ð»Ð°Ð·Ð¼Ñ Ð² Ð»ÑÐ³ÐºÐ¸Ñ ÑÐ¸ÑÑÐµÐ¼Ð°Ñ ÑÑÐ¾Ð»ÐºÐ½Ð¾Ð²ÐµÐ½Ð¸Ñ Ð¸ ÑÑÐ¾ÑÐ½ÐµÐ½Ð¸Ñ Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÐ¾Ð² ÑÐµÐ½Ð¾Ð¼ÐµÐ½Ð¾Ð»Ð¾Ð³Ð¸ÑÐµÑÐºÐ¸Ñ Ð¼Ð¾Ð´ÐµÐ»ÐµÐ¹ ÑÐ¾ÑÐ¼Ð¾Ð¶ÐµÐ½Ð¸Ñ Ð² ÐºÐ²Ð°ÑÐº-Ð³Ð»ÑÐ¾Ð½Ð½Ð¾Ð¹ Ð¿Ð»Ð°Ð·Ð¼Ðµ ÑÐ¾Ð¶Ð´ÑÐ½Ð½ÑÑ Ð² Ð¿ÑÐ¾ÑÐµÑÑÐµ ÑÑÐ¾Ð»ÐºÐ½Ð¾Ð²ÐµÐ½Ð¸Ñ Ð¶ÑÑÑÐºÐ¸Ñ Ð¿Ð°ÑÑÐ¾Ð½Ð¾Ð².
description: This work is devoted to the transverse momentum spectra of Î·-mesons, with the ultimate goal of constructing nuclear modification factors of Î·-mesons in order to study the effect of jet quenching in p+Al collisions. A cycle of p+Al collisions at 200 GeV was carried out at the RHIC in 2016, with collision events recorded by the PHENIX detector. In this paper we analyse the data ob-tained from the experiment: using software methods we truncate the data, measure the primary meson yield, estimate the detector registration efficiency, construct the production spectra of Î·-mesons and finally their nuclear modifi-cation factors. The result of this work is as follows: spectra and nuclear modification factors were measured and nuclear modification turned out to be less than unity: this indicates the possibility of quark-gluon plasma formation in p+Al collisions at 200 GeV. The results of this work can be used to clarify the possibility of quark-gluon plasma formation in small collision systems and to refine the parameters of phenomenological models of energy loss of hard partons produced in the pri-mary collision in the quark-gluon plasma.