Measurement of light-by-light scattering and search for axion-like particles with 2.2 nb−1 of Pb+Pb data with the ATLAS detector

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F21%3A00551107" target="_blank" >RIV/68378271:_____/21:00551107 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11320/21:10440446 RIV/68407700:21220/21:00354715 RIV/68407700:21340/21:00354715 RIV/68407700:21670/21:00354715 RIV/61989592:15310/21:73607588

Výsledek na webu

<a href="http://hdl.handle.net/11104/0326507" target="_blank" >http://hdl.handle.net/11104/0326507</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/JHEP03(2021)243" target="_blank" >10.1007/JHEP03(2021)243</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Measurement of light-by-light scattering and search for axion-like particles with 2.2 nb−1 of Pb+Pb data with the ATLAS detector

Popis výsledku v původním jazyce

This paper describes a measurement of light-by-light scattering based on Pb+Pb collision data recorded by the ATLAS experiment during Run 2 of the LHC. The study uses 2.2 nb−1^{−1}−1 of integrated luminosity collected in 2015 and 2018 at sNN sqrt{s_{mathrm{NN}}} sNN​ ​ = 5.02 TeV. Light-by-light scattering candidates are selected in events with two photons produced exclusively, each with transverse energy ETγ {E}_{mathrm{T}}^{gamma } ETγ​> 2.5 GeV, pseudorapidity |ηγ_{γ}γ​| < 2.37, diphoton invariant mass mγγ_{γγ}γγ​> 5 GeV, and with small diphoton transverse momentum and diphoton acoplanarity. The integrated and differential fiducial cross sections are measured and compared with theoretical predictions. The diphoton invariant mass distribution is used to set limits on the production of axion-like particles. This result provides the most stringent limits to date on axion-like particle production for masses in the range 6–100 GeV.n

Název v anglickém jazyce

Measurement of light-by-light scattering and search for axion-like particles with 2.2 nb−1 of Pb+Pb data with the ATLAS detector

Popis výsledku anglicky

This paper describes a measurement of light-by-light scattering based on Pb+Pb collision data recorded by the ATLAS experiment during Run 2 of the LHC. The study uses 2.2 nb−1^{−1}−1 of integrated luminosity collected in 2015 and 2018 at sNN sqrt{s_{mathrm{NN}}} sNN​ ​ = 5.02 TeV. Light-by-light scattering candidates are selected in events with two photons produced exclusively, each with transverse energy ETγ {E}_{mathrm{T}}^{gamma } ETγ​> 2.5 GeV, pseudorapidity |ηγ_{γ}γ​| < 2.37, diphoton invariant mass mγγ_{γγ}γγ​> 5 GeV, and with small diphoton transverse momentum and diphoton acoplanarity. The integrated and differential fiducial cross sections are measured and compared with theoretical predictions. The diphoton invariant mass distribution is used to set limits on the production of axion-like particles. This result provides the most stringent limits to date on axion-like particle production for masses in the range 6–100 GeV.n

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

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

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Journal of High Energy Physics

ISSN

1029-8479

e-ISSN

1029-8479

Svazek periodika

2021

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

45

Strana od-do

243

Kód UT WoS článku

000634886800001

EID výsledku v databázi Scopus

2-s2.0-85103624724