Cross-section constrained top quark mass measurement from dilepton events at the Tevatron

We report the first top quark mass measurement that uses a cross section constraint to improve the mass determination. This measurement is made with a dilepton

t\bar{t}

event sample collected with the CDF II detector. From a data sample corresponding to an integrated luminosity of 1.2 fb

^{-1}

, we measure a top quark mass of

\rm{170.7^{+4.2}_{-3.9}(stat)\pm2.6(syst)}

\rm{\pm2.4(theory) GeV/{\it{c}}^{2}}

. The measurement without the cross section constraint results in a top quark mass of

\rm{169.7^{+5.2}_{-4.9}(stat)\pm3.1(syst) GeV/{\it{c}}^{2}}

.

Note:

submitted to Phys. Rev. Lett

13.85.Ni
12.15.Ff
14.65.Ha
13.85.Qk
anti-p p: colliding beams
top: pair production
final state: dilepton
cross section
mass: top
CDF

References(19)

Figures(0)

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