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dc.contributor.authorTrzaska, Wladyslaw Henryk
dc.contributor.authorBezrukov, Leonid
dc.contributor.authorEnqvist, Timo
dc.contributor.authorInzhechik, Lev
dc.contributor.authorJoutsenvaara, Jari
dc.contributor.authorKuusiniemi, Pasi
dc.contributor.authorLoo, Kai
dc.contributor.authorLubsandorzhiev, Bayarto
dc.contributor.authorSłupecki, Maciej
dc.date.accessioned2020-03-30T14:37:14Z
dc.date.available2020-03-30T14:37:14Z
dc.date.issued2020
dc.identifier.citationTrzaska, Wladyslaw Henryk; Bezrukov, Leonid; Enqvist, Timo; Inzhechik, Lev; Joutsenvaara, Jari; Kuusiniemi, Pasi; Loo, Kai; Lubsandorzhiev, Bayarto; Słupecki, Maciej (2020). High-multiplicity muon events observed with EMMA array. In TAUP 2019 : 16th International Conference on Topics in Astroparticle and Underground Physics, Journal of Physics: Conference Series, 1468. IOP Publishing, 012085. DOI: 10.1088/1742-6596/1468/1/012085
dc.identifier.otherCONVID_35112734
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/68376
dc.description.abstractHigh-multiplicity data, collected with a segmented scintillator array of the cosmic-ray experiment EMMA (Experiment with Multi-Muon Array), is presented for the first time. The measurements were done at the depth of 75 meters (210 m.w.e.) in the Pyhäsalmi mine in Finland. EMMA uses two types of detectors: drift chambers and plastic scintillation detectors. The presented data were acquired over the period between December, 2015 and April, 2018 using 128-800 plastic scintillator pixels probing the fiducial area of ˜100 m2. The results are being interpreted in terms of CORSIKA simulations. Several events with densities in excess of 10 muons per m2 were observed. At the next stage of the analysis, the high-multiplicity events will be matched with precision tracking data extracted from the multi-layer drift chambers of EMMA. Observation of high-density muon bundles was first reported by the LEP experiments: DELPHI, L3+C, and ALEPH. More recently, the ALICE experiment at CERN has provided new cosmic-ray results together with improved interpretation benefiting from the updated cross section values extracted from LHC results. While the tracking performance of ALICE is superior to EMMA, the duration of ALICE cosmic-ray measurements is very limited. Over the period of 2010–2018 the total exposure was only 93 days while EMMA, having a similar overburden provides a larger footprint and collects data continuously.en
dc.format.mimetypeapplication/pdf
dc.languageeng
dc.publisherIOP Publishing
dc.relation.ispartofTAUP 2019 : 16th International Conference on Topics in Astroparticle and Underground Physics
dc.relation.ispartofseriesJournal of Physics: Conference Series
dc.rightsCC BY 3.0
dc.titleHigh-multiplicity muon events observed with EMMA array
dc.typeconferenceObject
dc.identifier.urnURN:NBN:fi:jyu-202003302589
dc.contributor.laitosFysiikan laitosfi
dc.contributor.laitosDepartment of Physicsen
dc.type.urihttp://purl.org/eprint/type/ConferencePaper
dc.description.reviewstatuspeerReviewed
dc.relation.issn1742-6588
dc.type.versionpublishedVersion
dc.rights.copyright© 2020 The Author(s)
dc.rights.accesslevelopenAccessfi
dc.relation.conferenceInternational Conference on Topics in Astroparticle and Underground Physics
dc.subject.ysohiukkasfysiikka
dc.subject.ysoastrofysiikka
dc.subject.ysokosminen säteily
dc.format.contentfulltext
jyx.subject.urihttp://www.yso.fi/onto/yso/p15576
jyx.subject.urihttp://www.yso.fi/onto/yso/p20188
jyx.subject.urihttp://www.yso.fi/onto/yso/p14258
dc.rights.urlhttps://creativecommons.org/licenses/by/3.0/
dc.relation.doi10.1088/1742-6596/1468/1/012085
jyx.fundinginformationNo funding information.


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