Measurement of the photon identification efficiencies with the ATLAS detector using LHC Run-1 data

Kód výsledku v IS VaVaI

RIV/68378271:_____/16:00522562 - isvavai.cz

Nalezeny alternativní kódy

RIV/68407700:21220/16:00305595 RIV/68407700:21340/16:00305595 RIV/68407700:21670/16:00305595 RIV/00216208:11320/16:10335914 RIV/61989592:15310/16:33161594

Výsledek na webu

http://hdl.handle.net/11104/0307033

DOI - Digital Object Identifier

10.1140/epjc/s10052-016-4507-9

Jazyk výsledku

angličtina

Název v původním jazyce

Measurement of the photon identification efficiencies with the ATLAS detector using LHC Run-1 data

Popis výsledku v původním jazyce

The algorithms used by the ATLAS Collaboration to reconstruct and identify prompt photons are described. Measurements of the photon identification efficiencies are reported, using 4.9 fb−1 of pp collision data collected at the LHC at √s=7 TeV and 20.3 fb−1 at √s=8 TeV . The efficiencies are measured separately for converted and unconverted photons, in four different pseudorapidity regions, for transverse momenta between 10 GeV and 1.5 TeV . The results from the combination of three data-driven techniques are compared to the predictions from a simulation of the detector response, after correcting the electromagnetic shower momenta in the simulation for the average differences observed with respect to data. Data-to-simulation efficiency ratios used as correction factors in physics measurements are determined to account for the small residual efficiency differences.

Název v anglickém jazyce

Measurement of the photon identification efficiencies with the ATLAS detector using LHC Run-1 data

Popis výsledku anglicky

The algorithms used by the ATLAS Collaboration to reconstruct and identify prompt photons are described. Measurements of the photon identification efficiencies are reported, using 4.9 fb−1 of pp collision data collected at the LHC at √s=7 TeV and 20.3 fb−1 at √s=8 TeV . The efficiencies are measured separately for converted and unconverted photons, in four different pseudorapidity regions, for transverse momenta between 10 GeV and 1.5 TeV . The results from the combination of three data-driven techniques are compared to the predictions from a simulation of the detector response, after correcting the electromagnetic shower momenta in the simulation for the average differences observed with respect to data. Data-to-simulation efficiency ratios used as correction factors in physics measurements are determined to account for the small residual efficiency differences.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10303 - Particles and field physics

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

12

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

42

Strana od-do

1-42

Kód UT WoS článku

000389890600001

EID výsledku v databázi Scopus

2-s2.0-85003480972