Measurement of the tt¯ production cross section in the τ+jets channel in pp collisions at √s=7 TeV
Open access
Datum
2013-04Typ
- Journal Article
ETH Bibliographie
yes
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Abstract
The top-quark pair production cross section in 7 TeV center-of-mass energy proton–proton collisions is measured using data collected by the CMS detector at the LHC. The measurement uses events with one jet identified as a hadronically decaying τ lepton and at least four additional energetic jets, at least one of which is identified as coming from a b quark. The analyzed data sample corresponds to an integrated luminosity of 3.9 fb−1 recorded by a dedicated multijet plus hadronically decaying τ trigger. A neural network has been developed to separate the top-quark pairs from the W+jets and multijet backgrounds. The measured value of σtt¯=152±12(stat.)±32(syst.)±3(lum.) pb is consistent with the standard model predictions. Mehr anzeigen
Persistenter Link
https://doi.org/10.3929/ethz-b-000066503Publikationsstatus
publishedExterne Links
Zeitschrift / Serie
The European Physical Journal CBand
Seiten / Artikelnummer
Verlag
SpringerOrganisationseinheit
03381 - Pauss, Felicitas (emeritus)
03593 - Dissertori, Günther / Dissertori, Günther
03904 - Wallny, Rainer / Wallny, Rainer
08803 - Grab, Christoph (Tit.Prof.)
ETH Bibliographie
yes
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