Show simple item record

dc.contributor.authorSirunyan, A. M.
dc.contributor.authorTumasyan, A. R.
dc.contributor.authorAdam, Wolfgang
dc.contributor.authorBaarmand, Marc M.
dc.contributor.authorBhopatkar, Vallary
dc.contributor.authorColafranceschi, Stefano
dc.contributor.authorHohlmann, Marcus
dc.contributor.authorNoonan, Daniel
dc.contributor.authorRoy, Tuhin S.
dc.contributor.authorYumiceva, Francisco X.
dc.date.accessioned2018-04-09T19:54:29Z
dc.date.available2018-04-09T19:54:29Z
dc.date.issued2017-12-01
dc.identifier.citationSirunyan, A. M., Tumasyan, A., Adam, W., Ambrogi, F., Asilar, E., Bergauer, T., . . . Woods, N. (2017). Search for evidence of the type-III seesaw mechanism in multilepton final states in proton-proton collisions at s =13 TeV. Physical Review Letters, 119(22)10.1103/PhysRevLett.119.221802 Retrieved from www.scopus.comen_US
dc.identifier.urihttp://hdl.handle.net/11141/2357
dc.descriptionElementary particles, Fermions, Germanium compounds, Tellurium compounds, Branching fractions, Branching ratio, Charged leptons, Integrated luminosity, Proton proton collisions, Seesaw mechanism, Selection criteria, The standard model, High energy physicsen_US
dc.description.abstractA search for a signal consistent with the type-III seesaw mechanism in events with three or more electrons or muons is presented. The data sample consists of proton-proton collisions at s=13 TeV collected by the CMS experiment at the LHC in 2016 and corresponds to an integrated luminosity of 35.9 fb-1. Selection criteria based on the number of leptons and the invariant mass of oppositely charged lepton pairs are used to distinguish the signal from the standard model background. The observations are consistent with the expectations from standard model processes. The results are used to place limits on the production of heavy fermions of the type-III seesaw model as a function of the branching ratio to each lepton flavor. In the scenario of equal branching fractions to each lepton flavor, heavy fermions with masses below 840 GeV are excluded. This is the most sensitive probe to date of the type-III seesaw mechanism.en_US
dc.language.isoen_USen_US
dc.rights© 2017 CERN, for the CMS Collaborationen_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en_US
dc.titleSearch for Evidence of the Type-III Seesaw Mechanism in Multilepton Final States in Proton-Proton Collisions at s =13 TeVen_US
dc.typeArticleen_US
dc.identifier.doi10.1103/PhysRevLett.119.221802


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record

© 2017 CERN, for the CMS Collaboration
Except where otherwise noted, this item's license is described as © 2017 CERN, for the CMS Collaboration