Publications [#309324] of Seog Oh

Papers Published

1. Aaltonen; T; others, Exclusion of an Exotic Top Quark with -4/3 Electric Charge Using Soft Lepton Tagging, Phys. Rev. Lett., vol. 105 no. 10 (August, 2010), pp. 101801, American Physical Society [doi]
   (last updated on 2026/01/20)

   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.