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Measurement of contributions of diffractive processes to forward photon spectra in pp collisions at $\sqrt{s}$ = 13 TeV

This note presents a study of the contribution of proton diffractive dissociation to production of forward photons in pp collisions at $\sqrt{s}$ = 13 TeV with data recorded by the ATLAS and LHCf experiments in a joint effort. The results are based on data collected in 2015 with a corresponding inte...

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Autor principal: The ATLAS collaboration
Lenguaje:eng
Publicado: 2017
Materias:
Acceso en línea:http://cds.cern.ch/record/2291387
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author The ATLAS collaboration
author_facet The ATLAS collaboration
author_sort The ATLAS collaboration
collection CERN
description This note presents a study of the contribution of proton diffractive dissociation to production of forward photons in pp collisions at $\sqrt{s}$ = 13 TeV with data recorded by the ATLAS and LHCf experiments in a joint effort. The results are based on data collected in 2015 with a corresponding integrated luminosity of 0.191 nb$^{-1}$. The data analysis is based on photon reconstruction in the LHCf-Arm1 detector, as well as on the inner tracking system of the ATLAS detector, which is used to identify diffractive events. In particular, the energy spectrum of photons in the pseudorapidity range of 8.81<$\eta$<8.99 or $\eta$>10.94 is measured for events with no reconstructed charged-particle tracks with $p_T$>100 MeV and |$\eta$|<2.5. The results are compared to predictions from several hadronic interaction models.
id cern-2291387
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2017
record_format invenio
spelling cern-22913872021-04-18T19:39:12Zhttp://cds.cern.ch/record/2291387engThe ATLAS collaborationMeasurement of contributions of diffractive processes to forward photon spectra in pp collisions at $\sqrt{s}$ = 13 TeVParticle Physics - ExperimentThis note presents a study of the contribution of proton diffractive dissociation to production of forward photons in pp collisions at $\sqrt{s}$ = 13 TeV with data recorded by the ATLAS and LHCf experiments in a joint effort. The results are based on data collected in 2015 with a corresponding integrated luminosity of 0.191 nb$^{-1}$. The data analysis is based on photon reconstruction in the LHCf-Arm1 detector, as well as on the inner tracking system of the ATLAS detector, which is used to identify diffractive events. In particular, the energy spectrum of photons in the pseudorapidity range of 8.81<$\eta$<8.99 or $\eta$>10.94 is measured for events with no reconstructed charged-particle tracks with $p_T$>100 MeV and |$\eta$|<2.5. The results are compared to predictions from several hadronic interaction models.ATLAS-CONF-2017-075oai:cds.cern.ch:22913872017-11-02
spellingShingle Particle Physics - Experiment
The ATLAS collaboration
Measurement of contributions of diffractive processes to forward photon spectra in pp collisions at $\sqrt{s}$ = 13 TeV
title Measurement of contributions of diffractive processes to forward photon spectra in pp collisions at $\sqrt{s}$ = 13 TeV
title_full Measurement of contributions of diffractive processes to forward photon spectra in pp collisions at $\sqrt{s}$ = 13 TeV
title_fullStr Measurement of contributions of diffractive processes to forward photon spectra in pp collisions at $\sqrt{s}$ = 13 TeV
title_full_unstemmed Measurement of contributions of diffractive processes to forward photon spectra in pp collisions at $\sqrt{s}$ = 13 TeV
title_short Measurement of contributions of diffractive processes to forward photon spectra in pp collisions at $\sqrt{s}$ = 13 TeV
title_sort measurement of contributions of diffractive processes to forward photon spectra in pp collisions at $\sqrt{s}$ = 13 tev
topic Particle Physics - Experiment
url http://cds.cern.ch/record/2291387
work_keys_str_mv AT theatlascollaboration measurementofcontributionsofdiffractiveprocessestoforwardphotonspectrainppcollisionsatsqrts13tev