Search for anomalous production of highly boosted Z bosons decaying to μ+μ− in proton–proton collisions at √s=7 TeV

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dc.citation.firstpage28
dc.citation.issueNumber1-3
dc.citation.journalTitlePhysics Letters B
dc.citation.lastpage47
dc.citation.volumeNumber722
dc.contributor.authorCMS Collaboration
dc.date.accessioned2015-07-13T18:25:57Z
dc.date.available2015-07-13T18:25:57Z
dc.date.issued2013
dc.description.abstractResults are reported from a search for the anomalous production of highly boosted Z bosons with large transverse momentum and decaying to μ+μ−. Such Z bosons may be produced in the decays of new heavy particles. The search uses pp collision data at √s=7 TeV, corresponding to an integrated luminosity of 5.0 fb−1 recorded with the CMS detector. The shape of the observed transverse momentum distribution of Z bosons is consistent with standard model expectations. Constraints are obtained on models predicting the production of excited quarks decaying via electroweak processes. Assuming a compositeness scale that is equal to the excited quark mass as well as transition coupling strengths between Z bosons and excited quarks that are equal to standard model couplings to quarks, masses of excited quarks below 1.94 TeV are excluded at the 95% confidence level. For excited quark production via a novel contact interaction, masses below 2.22 TeV are excluded, even if the excited quarks do not couple to gluons.
dc.identifier.citationCMS Collaboration. "Search for anomalous production of highly boosted Z bosons decaying to μ+μ− in proton–proton collisions at √s=7 TeV." <i>Physics Letters B,</i> 722, no. 1-3 (2013) Elsevier: 28-47. http://dx.doi.org/10.1016/j.physletb.2013.03.037.
dc.identifier.doihttp://dx.doi.org/10.1016/j.physletb.2013.03.037
dc.identifier.urihttps://hdl.handle.net/1911/80939
dc.language.isoeng
dc.publisherElsevier
dc.rightsOpen access under CC BY-NC-ND license.
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject.keywordCMS
dc.subject.keywordphysics
dc.subject.keyworddimuons
dc.subject.keywordnew phenomena
dc.subject.keywordexcited quarks
dc.titleSearch for anomalous production of highly boosted Z bosons decaying to μ+μ− in proton–proton collisions at √s=7 TeV
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpublisher version
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