# Measurement of the top quark mass in $\boldsymbol{\ppbar}$ collisions using events with two leptons

3 D0
IPNL - Institut de Physique Nucléaire de Lyon
Abstract : We present a measurement of the top quark mass ($m_t$) in $p\bar{p}$ collisions at $\sqrt{s} = 1.96$ TeV using $t\bar{t}$ events with two leptons ($ee$, $e\mu$ or $\mu\mu$) in the final state in 4.3 fb$^{-1}$ of data collected with the D0 detector at the Fermilab Tevatron collider. We analyze the kinematically underconstrained dilepton events by integrating over the neutrino rapidity distributions. We reduce the dominant systematic uncertainties from jet energy calibration using a correction obtained from $t\bar{t}\rightarrow\ell+$jets events. We also correct jets in simulated events to replicate the quark flavor dependence of the jet response in data. In combination with our previous analysis, we measure $m_t = 174.0\pm2.4(\rm stat)\pm1.4(\rm syst)$ GeV.
Document type :
Journal articles

http://hal.in2p3.fr/in2p3-00663077
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Submitted on : Thursday, January 26, 2012 - 8:47:23 AM
Last modification on : Thursday, December 16, 2021 - 2:11:16 PM

### Citation

V.M. Abazov, H. Li, G. Sajot, J. Stark, S. Greder, et al.. Measurement of the top quark mass in $\boldsymbol{\ppbar}$ collisions using events with two leptons. Physical Review D, American Physical Society, 2012, 86, pp.051103. ⟨10.1103/PhysRevD.86.051103⟩. ⟨in2p3-00663077⟩

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