Abstract

A measurement of the top quark pair production () cross section in proton-proton collisions at the centre-of-mass energy of 8 is presented using data collected with the CMS detector at the LHC, corresponding to an integrated luminosity of 19.6. This analysis is performed in the decay channels with one isolated, high transverse momentum electron or muon and at least four jets, at least one of which is required to be identified as originating from hadronization of a b quark. The calibration of the jet energy scale and the efficiency of b jet identification are determined from data. The measured cross section is . This measurement is compared with an analysis of 7 data, corresponding to an integrated luminosity of 5.0, to determine the ratio of 8 to 7 cross sections, which is found to be . The measurements are in agreement with QCD predictions up to next-to-next-to-leading order.

Autore Pugliese

• Pompili Alexis , Selvaggi Giovanna , Abbrescia Marcello , De Palma Mauro , My Salvatore , Nuzzo Salvatore Vitale

Tutti gli autori

• POMPILI A.;CALABRIA C.;MINIELLO G.;SELVAGGI G.;CRISTELLA L.;ABBRESCIA M.;DE PALMA M.;RADOGNA R.;VENDITTI R.;MY S.;NUZZO S.V.

Titolo volume/Rivista

Non Disponibile

Anno di pubblicazione

2017

ISSN

1434-6044

ISBN

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Numero di citazioni Wos

14

Ultimo Aggiornamento Citazioni

Non Disponibile

Numero di citazioni Scopus

13

Ultimo Aggiornamento Citazioni

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Settori ERC

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Codici ASJC

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