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Search for Scalar Diphoton Resonances in the Mass Range 65-600 GeV with the ATLAS Detector in pp Collision Data at root s=8 TeV
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.ORCID iD: 0000-0001-5650-4556
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.ORCID iD: 0000-0002-1921-6173
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.ORCID iD: 0000-0003-0373-1346
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Number of Authors: 28902014 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 113, no 17Article in journal (Refereed) Published
Abstract [en]

A search for scalar particles decaying via narrow resonances into two photons in the mass range 65-600 GeV is performed using 20.3 fb(-1) of root s = 8 TeV pp collision data collected with the ATLAS detector at the Large Hadron Collider. The recently discovered Higgs boson is treated as a background. No significant evidence for an additional signal is observed. The results are presented as limits at the 95% confidence level on the production cross section of a scalar boson times branching ratio into two photons, in a fiducial volume where the reconstruction efficiency is approximately independent of the event topology. The upper limits set extend over a considerably wider mass range than previous searches.

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2014. Vol. 113, no 17
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URN: urn:nbn:se:kth:diva-156863DOI: 10.1103/PhysRevLett.113.171801ISI: 000343769900007PubMedID: 25379911Scopus ID: 2-s2.0-84908140992OAI: oai:DiVA.org:kth-156863DiVA, id: diva2:768240
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QC 20141203

Available from: 2014-12-03 Created: 2014-12-03 Last updated: 2024-03-15Bibliographically approved

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Jovicevic, JelenaKuwertz, EmmaMorley, AnthonyStrandberg, Jonas
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