Measurement of the electric charge of the top quark in t(t)over-bar events
2014 (English)In: Physical Review D, ISSN 1550-7998, Vol. 90, no 5, 051101- p.Article in journal (Refereed) Published
We present a measurement of the electric charge of top quarks using t (t) over bar events produced in p (p) over bar collisions at the Tevatron. The analysis is based on fully reconstructed t (t) over bar pairs in lepton + jets final states. Using data corresponding to 5.3 fb(-1) of integrated luminosity, we exclude the hypothesis that the top quark has a charge of Q = -4/3e at a significance greater than 5 standard deviations. We also place an upper limit of 0.46 on the fraction of such quarks that can be present in an admixture with the standard model top quarks (Q = +2/3e) at a 95% confidence level.
Place, publisher, year, edition, pages
2014. Vol. 90, no 5, 051101- p.
Astronomy, Astrophysics and Cosmology
IdentifiersURN: urn:nbn:se:uu:diva-235331DOI: 10.1103/PhysRevD.90.051101ISI: 000341297300001OAI: oai:DiVA.org:uu-235331DiVA: diva2:760694