Show simple item record

dc.contributor.authorCMS Collaboration
Adair, A.
Akgun, B.
Ecklund, K.M.
Geurts, F.J.M.
Li, W.
Michlin, B.
Padley, B.P.
Redjimi, R.
Roberts, J.
Zabel, J.
dc.date.accessioned 2015-04-20T17:55:11Z
dc.date.available 2015-04-20T17:55:11Z
dc.date.issued 2014
dc.identifier.citation CMS Collaboration, Adair, A., Akgun, B., et al.. "Measurement of jet multiplicity distributions in tt production in pp collisions at √s=7TeV." The European Physical Journal C, 74, (2014) Springer: 3014. http://dx.doi.org/10.1140/epjc/s10052-014-3014-0.
dc.identifier.urihttps://hdl.handle.net/1911/79512
dc.description.abstract The normalised differential top quark-antiquark production cross section is measured as a function of the jet multiplicity in proton-proton collisions at a centre-of-mass energy of 7 TeV at the LHC with the CMS detector. The measurement is performed in both the dilepton and lepton+jets decay channels using data corresponding to an integrated luminosity of 5.0 fb−1 . Using a procedure to associate jets to decay products of the top quarks, the differential cross section of the tt¯ production is determined as a function of the additional jet multiplicity in the lepton+jets channel. Furthermore, the fraction of events with no additional jets is measured in the dilepton channel, as a function of the threshold on the jet transverse momentum. The measurements are compared with predictions from perturbative quantum chromodynamics and no significant deviations are observed.
dc.language.iso eng
dc.publisher Springer
dc.rights This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.title Measurement of jet multiplicity distributions in tt production in pp collisions at √s=7TeV
dc.type Journal article
dc.citation.journalTitle The European Physical Journal C
dc.citation.volumeNumber 74
dc.type.dcmi Text
dc.identifier.doihttp://dx.doi.org/10.1140/epjc/s10052-014-3014-0
dc.type.publication publisher version
dc.citation.firstpage 3014


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Except where otherwise noted, this item's license is described as This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.