Measurement of the forward-backward charge asymmetry in top-quark pair production
2008 (English)In: Physical Review Letters, ISSN 0031-9007, Vol. 100, no 14, 142002-1-142002-7 p.Article in journal (Refereed) Published
We present the first measurement of the integrated forward-backward charge asymmetry in top-quark-top-antiquark pair (t (t) over bar) production in proton-antiproton (p (p) over bar) collisions in the lepton+jets final state. Using a b-jet tagging algorithm and kinematic reconstruction assuming t (t) over bar +X production and decay, a sample of 0.9 fb(-1) of data, collected by the D0 experiment at the Fermilab Tevatron Collider, is used to measure the asymmetry for different jet multiplicities. The result is also used to set upper limits on t (t) over bar +X production via a Z' resonance.
Place, publisher, year, edition, pages
2008. Vol. 100, no 14, 142002-1-142002-7 p.
Kinematics, Protons, Resonance, Charge asymmetry, Kinematic reconstruction, Tagging algorithms
IdentifiersURN: urn:nbn:se:kth:diva-33150DOI: 10.1103/PhysRevLett.100.142002ISI: 000254940900019OAI: oai:DiVA.org:kth-33150DiVA: diva2:413633
QC 201104292011-04-292011-04-29Bibliographically approved