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Search for boosted diphoton resonances in the 10 to 70 GeV mass range using 138 $fb^{-1}$ of 13 TeV $pp$ collisions with the ATLAS detector

A search for diphoton resonances in the mass range between 10 to 70 GeV with the ATLAS experiment at the Large Hadron Collider is presented. The analysis is based on $pp$ collision data corresponding to an integrated luminosity of 138 $fb^{-1}$ at a centre-of-mass energy of 13 TeV recorded from 2015...

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Autor principal: The ATLAS collaboration
Lenguaje:eng
Publicado: 2022
Materias:
Acceso en línea:http://cds.cern.ch/record/2805800
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author The ATLAS collaboration
author_facet The ATLAS collaboration
author_sort The ATLAS collaboration
collection CERN
description A search for diphoton resonances in the mass range between 10 to 70 GeV with the ATLAS experiment at the Large Hadron Collider is presented. The analysis is based on $pp$ collision data corresponding to an integrated luminosity of 138 $fb^{-1}$ at a centre-of-mass energy of 13 TeV recorded from 2015 to 2018. Previous searches for diphoton resonances have reached down to 65 GeV in mass, with no observed evidence for new physics. This search exploits the particular kinematics of events with close-by pairs of photons reconstructed in the detector, that allows to reach invariant masses down to 10 GeV, covering a previously unexplored region at hadron colliders due to the experimental challenges of recording low energy photons and estimating the backgrounds. No significant excess is observed and the reported limits provide the strongest bound on promptly-decaying axion-like-particles coupling to gluons and photons for masses between 10 and 70 GeV.
id cern-2805800
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2022
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spelling cern-28058002022-11-08T13:15:05Zhttp://cds.cern.ch/record/2805800engThe ATLAS collaborationSearch for boosted diphoton resonances in the 10 to 70 GeV mass range using 138 $fb^{-1}$ of 13 TeV $pp$ collisions with the ATLAS detectorParticle Physics - ExperimentA search for diphoton resonances in the mass range between 10 to 70 GeV with the ATLAS experiment at the Large Hadron Collider is presented. The analysis is based on $pp$ collision data corresponding to an integrated luminosity of 138 $fb^{-1}$ at a centre-of-mass energy of 13 TeV recorded from 2015 to 2018. Previous searches for diphoton resonances have reached down to 65 GeV in mass, with no observed evidence for new physics. This search exploits the particular kinematics of events with close-by pairs of photons reconstructed in the detector, that allows to reach invariant masses down to 10 GeV, covering a previously unexplored region at hadron colliders due to the experimental challenges of recording low energy photons and estimating the backgrounds. No significant excess is observed and the reported limits provide the strongest bound on promptly-decaying axion-like-particles coupling to gluons and photons for masses between 10 and 70 GeV.ATLAS-CONF-2022-018oai:cds.cern.ch:28058002022-04-04
spellingShingle Particle Physics - Experiment
The ATLAS collaboration
Search for boosted diphoton resonances in the 10 to 70 GeV mass range using 138 $fb^{-1}$ of 13 TeV $pp$ collisions with the ATLAS detector
title Search for boosted diphoton resonances in the 10 to 70 GeV mass range using 138 $fb^{-1}$ of 13 TeV $pp$ collisions with the ATLAS detector
title_full Search for boosted diphoton resonances in the 10 to 70 GeV mass range using 138 $fb^{-1}$ of 13 TeV $pp$ collisions with the ATLAS detector
title_fullStr Search for boosted diphoton resonances in the 10 to 70 GeV mass range using 138 $fb^{-1}$ of 13 TeV $pp$ collisions with the ATLAS detector
title_full_unstemmed Search for boosted diphoton resonances in the 10 to 70 GeV mass range using 138 $fb^{-1}$ of 13 TeV $pp$ collisions with the ATLAS detector
title_short Search for boosted diphoton resonances in the 10 to 70 GeV mass range using 138 $fb^{-1}$ of 13 TeV $pp$ collisions with the ATLAS detector
title_sort search for boosted diphoton resonances in the 10 to 70 gev mass range using 138 $fb^{-1}$ of 13 tev $pp$ collisions with the atlas detector
topic Particle Physics - Experiment
url http://cds.cern.ch/record/2805800
work_keys_str_mv AT theatlascollaboration searchforboosteddiphotonresonancesinthe10to70gevmassrangeusing138fb1of13tevppcollisionswiththeatlasdetector