Performance of photon reconstruction and identification with the CMS detector in proton-proton collisions at root s=8TeV

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F15%3A10318748" target="_blank" >RIV/00216208:11320/15:10318748 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1088/1748-0221/10/08/P08010" target="_blank" >http://dx.doi.org/10.1088/1748-0221/10/08/P08010</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1748-0221/10/08/P08010" target="_blank" >10.1088/1748-0221/10/08/P08010</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Performance of photon reconstruction and identification with the CMS detector in proton-proton collisions at root s=8TeV

Popis výsledku v původním jazyce

A description is provided of the performance of the CMS detector for photon reconstruction and identification in proton-proton collisions at a centre-of-mass energy of 8 TeV at the CERN LHC. Details are given on the reconstruction of photons from energydeposits in the electromagnetic calorimeter (ECAL) and the extraction of photon energy estimates. The reconstruction of electron tracks from photons that convert to electrons in the CMS tracker is also described, as is the optimization of the photon energy reconstruction and its accurate modelling in simulation, in the analysis of the Higgs boson decay into two photons. In the barrel section of the ECAL, an energy resolution of about 1% is achieved for unconverted or late-converting photons from H -> gamma gamma decays. Different photon identification methods are discussed and their corresponding selection efficiencies in data are compared with those found in simulated events.

Název v anglickém jazyce

Performance of photon reconstruction and identification with the CMS detector in proton-proton collisions at root s=8TeV

Popis výsledku anglicky

A description is provided of the performance of the CMS detector for photon reconstruction and identification in proton-proton collisions at a centre-of-mass energy of 8 TeV at the CERN LHC. Details are given on the reconstruction of photons from energydeposits in the electromagnetic calorimeter (ECAL) and the extraction of photon energy estimates. The reconstruction of electron tracks from photons that convert to electrons in the CMS tracker is also described, as is the optimization of the photon energy reconstruction and its accurate modelling in simulation, in the analysis of the Higgs boson decay into two photons. In the barrel section of the ECAL, an energy resolution of about 1% is achieved for unconverted or late-converting photons from H -> gamma gamma decays. Different photon identification methods are discussed and their corresponding selection efficiencies in data are compared with those found in simulated events.

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

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

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Journal of Instrumentation

ISSN

1748-0221

e-ISSN

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Svazek periodika

10

Číslo periodika v rámci svazku

2015

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

60

Strana od-do

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Kód UT WoS článku

000362378700029

EID výsledku v databázi Scopus

2-s2.0-84941617225