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Direct Measurement of the Mass Difference between Top and Antitop Quarks
Univ Michigan, Ann Arbor.ORCID iD: 0000-0002-8913-0981
2009 (English)In: Physical Review Letters, ISSN 0031-9007, Vol. 103, no 13, 132001- p.Article in journal (Refereed) Published
Abstract [en]

We present a measurement of the mass difference between t and (t) over bar quarks in lepton + jets final states of t (t) over bar events in 1 fb(-1) of data collected with the D0 detector from Fermilab Tevatron Collider p (p) over bar collisions at root s = 1.96 TeV. The measured mass difference of 3.8 +/- 3.7 GeV is consistent with the equality of t and (t) over bar masses. This is the first direct measurement of a mass difference between a quark and its antiquark partner.

Place, publisher, year, edition, pages
2009. Vol. 103, no 13, 132001- p.
National Category
Physical Sciences
URN: urn:nbn:se:kth:diva-72079DOI: 10.1103/PhysRevLett.103.132001ISI: 000270241100011OAI: diva2:487647
QC 20120131Available from: 2012-01-31 Created: 2012-01-31 Last updated: 2012-01-31Bibliographically approved

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Strandberg, Jonas
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