Direct Measurement of the Mass Difference between Top and Antitop Quarks
2009 (English)In: Physical Review Letters, ISSN 0031-9007, Vol. 103, no 13, 132001- p.Article in journal (Refereed) Published
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.
IdentifiersURN: urn:nbn:se:kth:diva-72079DOI: 10.1103/PhysRevLett.103.132001ISI: 000270241100011OAI: oai:DiVA.org:kth-72079DiVA: diva2:487647
QC 201201312012-01-312012-01-312012-01-31Bibliographically approved