Journal article
Measurement of the t̄t production cross section in the all-jet final state in pp collisions at √s=7 TeV
The journal of high energy physics, Vol.2013(5), 65
01/01/2013
DOI: 10.1007/JHEP05(2013)065
Abstract
A measurement is presented of the tt¯ production cross section (σtt¯) in proton-proton collisions at a centre-of-mass energy of 7 TeV, in the all-jet final state that contains at least six jets, two of which are tagged as originating from b quarks. The data correspond to an integrated luminosity of 3.54 fb−1, collected with the CMS detector at the LHC. The cross section is determined through an unbinned maximum likelihood fit of background and tt¯ signal to the reconstructed mass spectrum of tt¯ candidates in the data, in which events are subjected to a kinematic fit assuming a tt¯→W+bW−b¯¯¯→6 jets hypothesis. The measurement yields σtt¯=139±10(stat.)±26(syst.)±3(lum.)pb, a result consistent with those obtained in other tt¯ decay channels, as well as with predictions of the standard model.
Details
- Title: Subtitle
- Measurement of the t̄t production cross section in the all-jet final state in pp collisions at √s=7 TeV
- Creators
- S ChatrchyanJ. A Brochero CifuentesI. J CabrilloAlicia CalderonS. H ChuangJ Duarte CampderrosMarta FelciniM FernándezG GómezJ González SánchezA GrazianoC JordaA López VirtoJesús MarcoRafael MarcoCelso Martínez-RiveroFrancisco MatorrasF. J Muñoz SánchezTeresa RodrigoAna Y Rodríguez MarreroAlberto Ruiz JimenoLuca ScodellaroIván VilaRocío VilarCMS Collaboration
- Contributors
- C. R Newsom (Contributor) - University of Iowa, Physics and AstronomyY Onel (Contributor) - University of Iowa, Physics and Astronomy
- Resource Type
- Journal article
- Publication Details
- The journal of high energy physics, Vol.2013(5), 65
- Publisher
- Springer
- DOI
- 10.1007/JHEP05(2013)065
- ISSN
- 1126-6708
- eISSN
- 1029-8479
- Language
- English
- Date published
- 01/01/2013
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984199932602771
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