Muon reconstruction performance of the ATLAS detector in proton–proton collision data at s =13 TeV

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F16%3A00466007" target="_blank" >RIV/68378271:_____/16:00466007 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1140/epjc/s10052-016-4120-y" target="_blank" >http://dx.doi.org/10.1140/epjc/s10052-016-4120-y</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1140/epjc/s10052-016-4120-y" target="_blank" >10.1140/epjc/s10052-016-4120-y</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Muon reconstruction performance of the ATLAS detector in proton–proton collision data at s =13 TeV

Popis výsledku v původním jazyce

This article documents the performance of the ATLAS muon identification and reconstruction using the LHC dataset recorded at s=13 TeV in 2015. Using a large sample of J/ψμμ and Zμμ decays from 3.2 fb1 of pp collision data, measurements of the reconstruction efficiency, as well as of the momentum scale and resolution, are presented and compared to Monte Carlo simulations. The reconstruction efficiency is measured to be close to 99 % over most of the covered phase space ( |η|<2.5 and 5<pT<100 GeV). The isolation efficiency varies between 93 and 100 % depending on the selection applied and on the momentum of the muon. Both efficiencies are well reproduced in simulation. In the central region of the detector, the momentum resolution is measured to be 1.7 % ( 2.3 % ) for muons from J/ψμμ ( Zμμ ) decays, and the momentum scale is known with an uncertainty of 0.05 % . In the region |η|>2.2 , the pT resolution for muons from Zμμ decays is 2.9 % while the precision of the momentum scale for low- pT muons from J/ψμμ decays is about 0.2 % .

Název v anglickém jazyce

Muon reconstruction performance of the ATLAS detector in proton–proton collision data at s =13 TeV

Popis výsledku anglicky

This article documents the performance of the ATLAS muon identification and reconstruction using the LHC dataset recorded at s=13 TeV in 2015. Using a large sample of J/ψμμ and Zμμ decays from 3.2 fb1 of pp collision data, measurements of the reconstruction efficiency, as well as of the momentum scale and resolution, are presented and compared to Monte Carlo simulations. The reconstruction efficiency is measured to be close to 99 % over most of the covered phase space ( |η|<2.5 and 5<pT<100 GeV). The isolation efficiency varies between 93 and 100 % depending on the selection applied and on the momentum of the muon. Both efficiencies are well reproduced in simulation. In the central region of the detector, the momentum resolution is measured to be 1.7 % ( 2.3 % ) for muons from J/ψμμ ( Zμμ ) decays, and the momentum scale is known with an uncertainty of 0.05 % . In the region |η|>2.2 , the pT resolution for muons from Zμμ decays is 2.9 % while the precision of the momentum scale for low- pT muons from J/ψμμ decays is about 0.2 % .

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BF - Elementární částice a fyzika vysokých energií

OECD FORD obor

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Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

European Physical Journal C

ISSN

1434-6044

e-ISSN

—

Svazek periodika

76

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

45

Strana od-do

—

Kód UT WoS článku

000376679200003

EID výsledku v databázi Scopus

2-s2.0-84971597430