Measurement of the charge asymmetry in top quark pair production in pp collisions at $\sqrt{s} =$ 8 TeV using a template method - INSPIRE

DataBETA

Measurement of the charge asymmetry in top quark pair production in pp collisions at $\sqrt{s} =$ 8 TeV using a template method

CMS

Collaboration

Aug 16, 2015

27 pages

Published in:

Phys.Rev.D 93 (2016) 3, 034014

Published: Feb 18, 2016

e-Print:

1508.03862 [hep-ex]

DOI:

10.1103/PhysRevD.93.034014

PDG:

{{\mathit t}}{{\overline{\mathit t}}}

Charge Asymmetry (A

_{C}

{{\mathit p}}{{\mathit p}}

\sqrt {s }

Report number:

CMS-TOP-13-013,
CERN-PH-EP-2015-189

Experiments:

CERN-LHC-CMS

View in:

reference search51 citations

Citations per year

Abstract: (APS)

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 Acy=[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.

Note:

Replaced with the published version. All of the figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/TOP-13-013/index.html (CMS Public Pages)

p p: scattering
p p: colliding beams
charge: asymmetry
top: pair production
jet: bottom
bottom: hadronization
jet: multiplicity
CERN LHC Coll
top: rapidity
CMS

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