High Energy Physics Seminar: Dr. Huanzhao Liu, Southern Methodist University  Add To Calendar

  • Date(s): Tuesday, 5/12 1:30 PM to Tuesday, 5/12 2:30 PM
  • Speaker: Dr. Huanzhao Liu
  • Host: Zhenyu Ye
  • Campus Address: 2214 SES (Science and Engineering South)

Title: A precise measurement of the top quark mass in dilepton final states using 9.7 fb-1 of D0 Run II data

Abstract: I present the measurement of the mass of the top quark (mt) in dilepton final states of ttbar events using the full Run II data set corresponding to an integrated luminosity of 9.7 fb−1. Employing the expected neutrino rapidity distribution the neutrino weighting technique is used to extract a measurement of mt. Ensemble tests of pseudo-experiments are performed to calibrate and correct the extracted mt, and to estimate its statistical uncertainty. The extracted mt value obtained from 336 eµ, 113 ee, and 109 µµ candidate events is mt = 173.3 ± 1.4 (stat) ± 0.8 (syst) GeV.

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