Combined Forward-Backward Asymmetry Measurements in Top-Antitop Quark Production at the Tevatron - INSPIRE

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Combined Forward-Backward Asymmetry Measurements in Top-Antitop Quark Production at the Tevatron

CDF and
D0

Collaborations

Sep 14, 2017

12 pages

Published in:

Phys.Rev.Lett. 120 (2018) 4, 042001

Published: Jan 25, 2018

e-Print:

1709.04894 [hep-ex]

DOI:

10.1103/PhysRevLett.120.042001

PDG:

A_{FB}

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

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

\sqrt {s }

Report number:

FERMILAB-PUB-17-379-E

Experiments:

View in:

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Abstract: (APS)

The CDF and D0 experiments at the Fermilab Tevatron have measured the asymmetry between yields of forward- and backward-produced top and antitop quarks based on their rapidity difference and the asymmetry between their decay leptons. These measurements use the full data sets collected in proton-antiproton collisions at a center-of-mass energy of s=1.96 TeV. We report the results of combinations of the inclusive asymmetries and their differential dependencies on relevant kinematic quantities. The combined inclusive asymmetry is AFBtt¯=0.128±0.025. The combined inclusive and differential asymmetries are consistent with recent standard model predictions.

Note:

Submitted to PRL, 18 pages, 9 figures, includes PRL supplemental material as appendix

anti-p p: colliding beams
angular distribution: asymmetry
rapidity: difference
top: pair production
anti-p p: scattering
Batavia TEVATRON Coll
kinematics
DZERO
CDF
experimental results

References(33)

Figures(10)

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