title: ÐÑÐµÐ½ÐºÐ° Ð²ÐºÐ»Ð°Ð´Ð° ÑÐ¾Ð½Ð¾Ð²ÑÑ Ð¿ÑÐ¾ÑÐµÑÑÐ¾Ð² Ð¿ÑÐ¸ Ð¿Ð¾Ð¸ÑÐºÐµ ÑÐ°ÑÑÐ¸Ñ ÑÐµÐ¼Ð½Ð¾Ð¹ Ð¼Ð°ÑÐµÑÐ¸Ð¸ Ð² ÐºÐ°Ð½Ð°Ð»Ðµ mono-Z ÐºÐ°Ð½Ð°Ð»Ðµ Ð¿ÑÐ¸ pp-Ð²Ð·Ð°Ð¸Ð¼Ð¾Ð´ÐµÐ¹ÑÑÐ²Ð¸ÑÑ Ð¿ÑÐ¸ ÑÐ½ÐµÑÐ³Ð¸Ð¸Ð¸ 13 Ð¢ÑÐ Ð² ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐµ ATLAS Ð½Ð° ÐÐ¾Ð»ÑÑÐ¾Ð¼ Ð°Ð´ÑÐ¾Ð½Ð½Ð¾Ð¼ ÐºÐ¾Ð»Ð»Ð°Ð¹Ð´ÐµÑÐµ
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: Estimation of background processes contribution in the search for dark matter particles in the mono-Z channel in pp interactions at an energy of 13 TeV in the ATLAS experiment at the Large Hadron Collider
Creators: name: ÐÐ¾ÐºÐ¸Ð´Ð¾Ð²Ð°, ÐÐ°ÑÐ¸Ð½Ð°
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: 2020
Subjects: ÑÐ¸Ð·Ð¸ÐºÐ° Ð²ÑÑÐ¾ÐºÐ¸Ñ ÑÐ½ÐµÑÐ³Ð¸Ð¹
ÐÐ¾Ð»ÑÑÐ¾Ð¹ ÐÐ´ÑÐ¾Ð½Ð½ÑÐ¹ ÐÐ¾Ð»Ð»Ð°Ð¹Ð´ÐµÑ
ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½Ñ ATLAS
ÑÐµÐ¼Ð½Ð°Ñ Ð¼Ð°ÑÐµÑÐ¸Ñ
Ð¾ÑÐµÐ½ÐºÐ° ÑÐ¾Ð½Ð¾Ð²ÑÑ Ð¿ÑÐ¾ÑÐµÑÑÐ¾Ð²
ABCD Ð¼ÐµÑÐ¾Ð´
One sideband Ð¼ÐµÑÐ¾Ð´
WIMP
high energy physics
Large Hadron Collider
ATLAS experiment
dark matter
background process estimation
ABCD method
single sideband method

description: Ð¦ÐµÐ»Ñ ÑÐ°Ð±Ð¾ÑÑ â Ð¾ÑÐµÐ½ÐºÐ° Ð²ÐºÐ»Ð°Ð´Ð° ÑÐ¾Ð½Ð¾Ð²Ð¾Ð³Ð¾ Ð¿ÑÐ¾ÑÐµÑÑÐ° Ð°ÑÑÐ¾ÑÐ¸Ð°ÑÐ¸Ð²Ð½Ð¾Ð³Ð¾ ÑÐ¾Ð¶Ð´ÐµÐ½Ð¸Ñ Z-Ð±Ð¾Ð·Ð¾Ð½Ð° Ð¸ ÑÑÑÑÐ¹ Ð¿ÑÐ¸ Ð¿Ð¾Ð¸ÑÐºÐµ ÑÐ°ÑÑÐ¸Ñ ÑÐµÐ¼Ð½Ð¾Ð¹ Ð¼Ð°ÑÐµÑÐ¸Ð¸ Ð² ÐºÐ°Ð½Ð°Ð»Ðµ Ð¼Ð¾Ð½Ð¾-Z, Ð¸ÑÐ¿Ð¾Ð»ÑÐ·ÑÑ Ð´Ð°Ð½Ð½ÑÐµ ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐ° ATLAS, Ð½Ð°ÐºÐ¾Ð¿Ð»ÐµÐ½Ð½ÑÐµ Ð² 2015-2018 Ð³Ð¾Ð´Ð°Ñ Ð¿ÑÐ¸ ÑÐ½ÐµÑÐ³Ð¸Ð¸ ÑÑÐ¾Ð»ÐºÐ½Ð¾Ð²ÐµÐ½Ð¸Ð¹ Ð¿ÑÐ¾ÑÐ¾Ð½Ð¾Ð² Ð² ÑÐ¸ÑÑÐµÐ¼Ðµ ÑÐµÐ½ÑÑÐ° Ð¼Ð°ÑÑ 13 Ð¢ÑÐ. Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ ÑÐ°ÑÑÐ¼Ð¾ÑÑÐµÐ½ Ð¿Ð¾Ð¸ÑÐº ÑÐ°ÑÑÐ¸Ñ ÑÐµÐ¼Ð½Ð¾Ð¹ Ð¼Ð°ÑÐµÑÐ¸Ð¸ Ð² ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐµ ATLAS, Ð¾ÑÐ½Ð¾Ð²Ð°Ð½Ð½ÑÐ¹ Ð½Ð° Ð³Ð¸Ð¿Ð¾ÑÐµÐ·Ðµ, ÑÑÐ¾ ÑÐµÐ¼Ð½Ð°Ñ Ð¼Ð°ÑÐµÑÐ¸Ñ ÑÐ¾ÑÑÐ¾Ð¸Ñ Ð¸Ð· ÑÐ»Ð°Ð±Ð¾Ð²Ð·Ð°Ð¸Ð¼Ð¾Ð´ÐµÐ¹ÑÑÐ²ÑÑÑÐ¸Ñ Ð¼Ð°ÑÑÐ¸Ð²Ð½ÑÑ ÑÐ°ÑÑÐ¸Ñ. ÐÑÐ¸ Ð¸Ð½ÑÐµÑÐ¿ÑÐµÑÐ°ÑÐ¸Ð¸ Ð¿Ð¾Ð»ÑÑÐµÐ½Ð½ÑÑ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐ¾Ð² Ð¸ÑÐ¿Ð¾Ð»ÑÐ·ÑÑÑÑÑ Â«ÑÐ¿ÑÐ¾ÑÐµÐ½Ð½ÑÐµ Ð¼Ð¾Ð´ÐµÐ»Ð¸Â». ÐÐ¿Ð¸ÑÐ°Ð½Ñ ÐºÑÐ¸ÑÐµÑÐ¸Ð¸ Ð¾ÑÐ±Ð¾ÑÐ° ÑÐ¾Ð±ÑÑÐ¸Ð¹ ÑÐ¾Ð¶Ð´ÐµÐ½Ð¸Ñ ÑÐ°ÑÑÐ¸Ñ ÑÐµÐ¼Ð½Ð¾Ð¹ Ð¼Ð°ÑÐµÑÐ¸Ð¸ Ð² ÐºÐ°Ð½Ð°Ð»Ðµ Ð¼Ð¾Ð½Ð¾-Z Ð¸ ÐºÑÐ¸ÑÐµÑÐ¸Ð¸ Ð¾ÑÐµÐ½ÐºÐ¸ Ð¾ÑÐ½Ð¾Ð²Ð½ÑÑ ÑÐ¾Ð½Ð¾Ð²ÑÑ Ð¿ÑÐ¾ÑÐµÑÑÐ¾Ð². ÐÑÐµÐ½ÐºÐ° Ð²ÐºÐ»Ð°Ð´Ð° ÑÐ¾Ð½Ð¾Ð²Ð¾Ð³Ð¾ Ð¿ÑÐ¾ÑÐµÑÑÐ° Ð°ÑÑÐ¾ÑÐ¸Ð°ÑÐ¸Ð²Ð½Ð¾Ð³Ð¾ ÑÐ¾Ð¶Ð´ÐµÐ½Ð¸Ñ Z-Ð±Ð¾Ð·Ð¾Ð½Ð° Ð¸ ÑÑÑÑÐ¹ Ð¿Ð¾Ð»ÑÑÐµÐ½Ð° Ñ Ð¿Ð¾Ð¼Ð¾ÑÑÑ Ð´Ð²ÑÑ Ð¼ÐµÑÐ¾Ð´Ð¾Ð², Ð¾ÑÐ½Ð¾Ð²Ð°Ð½Ð½ÑÑ Ð½Ð° Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸Ð¸ ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐ°Ð»ÑÐ½ÑÑ Ð´Ð°Ð½Ð½ÑÑ (data-driven method) - Ð¼ÐµÑÐ¾Ð´Ð° ABCD Ð¸ Ð¼ÐµÑÐ¾Ð´Ð° ÐºÐ¾Ð½ÑÑÐ¾Ð»ÑÐ½Ð¾Ð¹ Ð¾Ð±Ð»Ð°ÑÑÐ¸ (one sideband). ÐÑÐ¸Ð²Ð¾Ð´Ð¸ÑÑÑ Ð¾Ð¿Ð¸ÑÐ°Ð½Ð¸Ðµ ÑÑÐ¸Ñ Ð¼ÐµÑÐ¾Ð´Ð¾Ð² Ð¸ Ð¿Ð¾Ð»ÑÑÐµÐ½Ð½ÑÐµ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÑ.
description: The aim of this work is to estimate contribution of Z+jets background in search for the Dark Matter particles using data accumulated in the ATLAS experiment in 2015-2018 years at the energy of proton-proton collisions in the center-of-mass system 13 TeV. This paper considers the search of dark matter particles in the ATLAS experiment, based on the hypothesis that dark matter consists of weakly interacting massive particles (WIMP). Simplified theoretical models are used for interpretation of obtained results. The criteria for events selection and the main background processes in the mono-Z channel are described. Contribution of Z+jets background process is estimated with two data-driven methods - ABCD and One sideband.