Skip to Main content Skip to Navigation
Journal articles

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

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
Complete list of metadatas

http://hal.in2p3.fr/in2p3-00663077
Contributor : Emmanuelle Vernay <>
Submitted on : Thursday, January 26, 2012 - 8:47:23 AM
Last modification on : Wednesday, September 16, 2020 - 4:23:37 PM

Links full text

Identifiers

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⟩

Share

Metrics

Record views

472