Combined forward-backward asymmetry measurements in top-antitop quark production at the Tevatron

0496781 - FZÚ 2019 RIV US eng J - Journal Article
Aaltonen, T. - Abazov, V. M. - Abbott, B. - Kupčo, Alexander - Lokajíček, Miloš - Lysák, Roman - Royon, C. … Total 768 authors
Combined forward-backward asymmetry measurements in top-antitop quark production at the Tevatron.
Physical Review Letters. Roč. 120, č. 4 (2018), s. 1-12, č. článku 042001. ISSN 0031-9007. E-ISSN 1079-7114
Institutional support: RVO:68378271
Keywords : Batavia TEVATRON Coll * kinematics * DZERO * CDF * experimental results * 1960 GeV-cms
OECD category: Particles and field physics
Impact factor: 9.227, year: 2018

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.
Permanent Link: http://hdl.handle.net/11104/0289424