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Measurement of Spin Correlation in $t\bar{t}$ Production Using Dilepton Final States
Stockholm University, Faculty of Science, Department of Physics. (Elementarpartikelfysik)
2011 (English)In: Physics Letters B, ISSN 0370-2693, Vol. 702, no 1, 16-23 p.Article in journal (Refereed) Published
##### Abstract [en]

We measure the correlation between the spin of the top quark and the spin of the anti-top quark in final states produced in collisions at a center of mass energy , where is an electron or muon. The data correspond to an integrated luminosity of 5.4 fb−1 and were collected with the D0 detector at the Fermilab Tevatron collider. The correlation is extracted from the angles of the two leptons in the t and rest frames, yielding a correlation strength , in agreement with the NLO QCD prediction within two standard deviations, but also in agreement with the no correlation hypothesis.

##### Place, publisher, year, edition, pages
2011. Vol. 702, no 1, 16-23 p.
##### Keyword [en]
Top quark, Spin, QCD
##### National Category
Subatomic Physics
Physics
##### Identifiers
ISI: 000294142600004OAI: oai:DiVA.org:su-63092DiVA: diva2:446679
D0
##### Funder
Swedish Research Council
##### Note
Publikationen har totalt 427 författare, V. Abazov et al.Available from: 2011-10-08 Created: 2011-10-08 Last updated: 2012-01-17Bibliographically approved

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Physics Letters B
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Subatomic Physics