The normalized differential cross section for top quark pair (t¯t) production is measured in pp collisions at a centre-of-mass energy of 8TeV at the CERN LHC using the CMS detector in data corresponding to an integrated luminosity of 19.7fb−1. The measurements are performed in the lepton+jets (e/μ +jets) and in the dilepton (e+e−, μ+μ−, and e±μ∓) decay channels. The t¯t cross section is measured as a function of the kinematic properties of the charged leptons, the jets associated to b quarks, the top quarks, and the t¯t system. The data are compared with several predictions from perturbative quantum chromodynamic up to approximate next-to-next-to-leading-order precision. No significant deviations are observed relative to the standard model predictions.

Measurement of the differential cross section for top quark pair production in pp collisions at sqrt(s) = 8 TeV

CANDELISE, VIERI;DELLA RICCA, GIUSEPPE;LA LICATA, CHIARA;MARONE, MATTEO;SCHIZZI, ANDREA;UMER, TOMO;
2015

Abstract

The normalized differential cross section for top quark pair (t¯t) production is measured in pp collisions at a centre-of-mass energy of 8TeV at the CERN LHC using the CMS detector in data corresponding to an integrated luminosity of 19.7fb−1. The measurements are performed in the lepton+jets (e/μ +jets) and in the dilepton (e+e−, μ+μ−, and e±μ∓) decay channels. The t¯t cross section is measured as a function of the kinematic properties of the charged leptons, the jets associated to b quarks, the top quarks, and the t¯t system. The data are compared with several predictions from perturbative quantum chromodynamic up to approximate next-to-next-to-leading-order precision. No significant deviations are observed relative to the standard model predictions.
File in questo prodotto:
File Dimensione Formato  
Measurement of the differential cross section for top quark pair production in pp collisions at sqrt(s) = 8 TeV.pdf

accesso aperto

Descrizione: pdf versione editoriale
Tipologia: Documento in Versione Editoriale
Licenza: Digital Rights Management non definito
Dimensione 2.01 MB
Formato Adobe PDF
2.01 MB Adobe PDF Visualizza/Apri
Supplementary material.pdf

accesso aperto

Descrizione: pdf materiale supplementare
Tipologia: Documento in Versione Editoriale
Licenza: Digital Rights Management non definito
Dimensione 192.87 kB
Formato Adobe PDF
192.87 kB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11368/2854737
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 159
  • ???jsp.display-item.citation.isi??? 151
social impact