PT Journal
AU CDF Collaboration (Aaltonen, Tea
   Cabrera, S
TI Measurement of the top quark mass in the dilepton channel using m(T2) at CDF
SO Physical Review D
JI Phys. Rev. D
PY 2010
BP 031102
EP 9pp
VL 81
IS 3
DI 10.1103/PhysRevD.81.031102
LA English
AB We present measurements of the top quark mass using m(T2), a variable related to the transverse mass in events with two missing particles. We use the template method applied to t (t) over bar dilepton events produced in p (p) over bar collisions at Fermilab's Tevatron Collider and collected by the CDF detector. From a data sample corresponding to an integrated luminosity of 3.4 fb(-1), we select 236 t (t) over bar candidate events. Using the m(T2) distribution, we measure the top quark mass to be M-top = 168.0(-4.0)(4.8)(stat) +/- 2.9(syst) GeV/c(2). By combining m(T2) with the reconstructed top quark mass distributions based on a neutrino weighting method, we measure M-top = 169.3 +/- 2.7(stat) +/- 3.2(syst) GeV/c(2). This is the first application of the m(T2) variable in a mass measurement at a hadron collider.
ER