Measurement of the charge asymmetry in top quark pair production in pp collisions at root s=8 TeV using a template method

Abstract

The charge asymmetry in the production of top quark and antiquark pairs is measured in proton-proton collisions at a center-of-mass energy of 8 TeV. The data, corresponding to an integrated luminosity of 19.6 fb(-1), were collected by the CMS experiment at the LHC. Events with a single isolated electron or muon, and four or more jets, at least one of which is likely to have originated from hadronization of a bottom quark, are selected. A template technique is used to measure the asymmetry in the distribution of differences in the top quark and antiquark absolute rapidities. The measured asymmetry is A(c)(y) = [0.33 +/- 0.26(stat) +/- 0.33(syst)] , which is the most precise result to date. The results are compared to calculations based on the standard model and on several beyond-the-standard-model scenarios.


Tutti gli autori

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

Titolo volume/Rivista

Non Disponibile


Anno di pubblicazione

2016

ISSN

2470-0010

ISBN

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Numero di citazioni Wos

6

Ultimo Aggiornamento Citazioni

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Numero di citazioni Scopus

20

Ultimo Aggiornamento Citazioni

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Settori ERC

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Codici ASJC

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