Exclusion of an Exotic Top Quark with -4/3 Electric Charge Using Soft Lepton Tagging Academic Article uri icon

abstract

  • We present a measurement of the electric charge of the top quark using pp collisions corresponding to an integrated luminosity of 2.7 fb(-1) at the CDF II detector. We reconstruct tt events in the lepton + jets final state. We use soft lepton taggers to determine the flavor of the b jets, which we use to reconstruct the top quark's electric charge and exclude an exotic top quark with -4/3 charge at 95% confidence level. This is the strongest exclusion of the exotic charge scenario and the first to use soft leptons for this purpose.

altmetric score

  • 0.25

author list (cited authors)

  • Aaltonen, T., Adelman, J., Gonz├ílez, B., Amerio, S., Amidei, D., Anastassov, A., ... Zucchelli, S.

citation count

  • 15

publication date

  • August 2010