Reconstruction of primary vertices at the ATLAS experiment in Run 1 proton–proton collisions at the LHC

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F17%3A00485282" target="_blank" >RIV/68378271:_____/17:00485282 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21340/17:00319642 RIV/00216208:11320/17:10369023 RIV/61989592:15310/17:73581943

Výsledek na webu

<a href="http://dx.doi.org/10.1140/epjc/s10052-017-4887-5" target="_blank" >http://dx.doi.org/10.1140/epjc/s10052-017-4887-5</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1140/epjc/s10052-017-4887-5" target="_blank" >10.1140/epjc/s10052-017-4887-5</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Reconstruction of primary vertices at the ATLAS experiment in Run 1 proton–proton collisions at the LHC

Popis výsledku v původním jazyce

This paper presents the method and performance of primary vertex reconstruction in proton–proton collision data recorded by the ATLAS experiment during Run 1 of the LHC. The studies presented focus on data taken during 2012 at a centre-of-mass energy of s√=8 TeV. The performance has been measured as a function of the number of interactions per bunch crossing over a wide range, from one to seventy. The measurement of the position and size of the luminous region and its use as a constraint to improve the primary vertex resolution are discussed. A longitudinal vertex position resolution of about 30upmum is achieved for events with high multiplicity of reconstructed tracks. The transverse position resolution is better than 20upmum and is dominated by the precision on the size of the luminous region. An analytical model is proposed to describe the primary vertex reconstruction efficiency as a function of the number of interactions per bunch crossing and of the longitudinal size of the luminous region.

Název v anglickém jazyce

Reconstruction of primary vertices at the ATLAS experiment in Run 1 proton–proton collisions at the LHC

Popis výsledku anglicky

This paper presents the method and performance of primary vertex reconstruction in proton–proton collision data recorded by the ATLAS experiment during Run 1 of the LHC. The studies presented focus on data taken during 2012 at a centre-of-mass energy of s√=8 TeV. The performance has been measured as a function of the number of interactions per bunch crossing over a wide range, from one to seventy. The measurement of the position and size of the luminous region and its use as a constraint to improve the primary vertex resolution are discussed. A longitudinal vertex position resolution of about 30upmum is achieved for events with high multiplicity of reconstructed tracks. The transverse position resolution is better than 20upmum and is dominated by the precision on the size of the luminous region. An analytical model is proposed to describe the primary vertex reconstruction efficiency as a function of the number of interactions per bunch crossing and of the longitudinal size of the luminous region.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10303 - Particles and field physics

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2017

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

77

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

35

Strana od-do

—

Kód UT WoS článku

000401899900004

EID výsledku v databázi Scopus

2-s2.0-85019837061