Show simple item record

dc.contributor.authorCMS Collaboration
dc.date.accessioned2018-10-23T17:22:27Z
dc.date.available2018-10-23T17:22:27Z
dc.date.issued2017-05-10
dc.identifier.citationCMS Collaboration. "Search for narrow resonances in dilepton mass spectra in proton–proton collisions at √s=13TeVand combination with 8TeV data”, Physics Letters B. (2017) 768: 57-80. https://doi.org/10.1016/j.physletb.2017.02.010en_US
dc.identifier.urihttp://hdl.handle.net/1808/26954
dc.description.abstractA search for narrow resonances in dielectron and dimuon invariant mass spectra has been performed using data obtained from proton–proton collisions at √s=13TeVcollected with the CMS detector. The integrated luminosity for the dielectron sample is 2.7fb−1and for the dimuon sample 2.9fb−1. The sensitivity of the search is increased by combining these data with a previously analyzedset of data obtained at √s=8TeVand corresponding to a luminosity of 20fb−1. No evidence for non-standard-model physics is found, either in the 13TeV data set alone, or in the combined data set. Upper limits on the product of production cross section and branching fraction have also been calculated in a model-independent manner to enable interpretation in models predicting a narrow dielectron or dimuon resonance structure. Limits are set on the masses of hypothetical particles that could appear in new-physics scenarios. For the Z SSMparticle, which arises in the sequential standard model, and for the superstring inspired Z ψparticle, 95% confidence level lower mass limits for the combined data sets and combined channels are found to be 3.37 and 2.82TeV, respectively. The corresponding limits for the lightest Kaluza–Klein graviton arising in the Randall–Sundrum model of extra dimensions with coupling parameters 0.01 and 0.10 are 1.46 and 3.11TeV, respectively. These results significantly exceed the limits based on the 8TeV LHC data.en_US
dc.rights©2017 The Author. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).en_US
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en_US
dc.subjectCMSen_US
dc.subjectDileptonsen_US
dc.subjectNarrow resonancesen_US
dc.subjectExtra dimensionsen_US
dc.titleSearch for narrow resonances in dilepton mass spectra in proton–proton collisions at √s=13TeVand combination with 8TeV dataen_US
dc.typeArticleen_US
kusw.kuauthorBaringer, Philip, S.
kusw.kudepartmentPhysics and Astronomyen_US
dc.identifier.doi10.1016/j.physletb.2017.02.010en_US
kusw.oaversionScholarly/refereed, publisher versionen_US
kusw.oapolicyThis item meets KU Open Access policy criteria.en_US
dc.rights.accessrightsopenAccessen_US


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record

©2017 The Author. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
Except where otherwise noted, this item's license is described as: ©2017 The Author. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).