uu.seUppsala University Publications
Change search
ReferencesLink to record
Permanent link

Direct link
Evidence for Spin Correlation in t(t)over-bar Production
Show others and affiliations
2012 (English)In: Physical Review Letters, ISSN 0031-9007, Vol. 108, no 3, 032004- p.Article in journal (Refereed) Published
Abstract [en]

We present a measurement of the ratio of events with correlated t and (t) over bar spins to the total number of t (t) over bar events. This ratio f is evaluated using a matrix-element-based approach in 729 t (t) over bar candidate events with a single lepton l (electron or muon) and at least four jets. The analyzed p (p) over bar collisions data correspond to an integrated luminosity of 5: 3 fb(-1) and were collected with the D0 detector at the Fermilab Tevatron collider operating at a center-of-mass energy root s = 1.96 TeV. Combining this result with a recent measurement of f in dileptonic final states, we find f in agreement with the standard model. In addition, the combination provides evidence for the presence of spin correlation in t (t) over bar events with a significance of more than 3 standard deviations.

Place, publisher, year, edition, pages
2012. Vol. 108, no 3, 032004- p.
National Category
Physical Sciences
URN: urn:nbn:se:uu:diva-169110DOI: 10.1103/PhysRevLett.108.032004ISI: 000299329100006OAI: oai:DiVA.org:uu-169110DiVA: diva2:505585
Available from: 2012-02-24 Created: 2012-02-23 Last updated: 2012-02-24Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Bélanger-Champagne, CamilleBuszello, Claus P.
By organisation
High Energy Physics
In the same journal
Physical Review Letters
Physical Sciences

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 155 hits
ReferencesLink to record
Permanent link

Direct link