Abstract : We present a measurement of the top quark mass in ppbar collisions at a center-of-mass energy of 1.96 TeV at the Fermilab Tevatron collider. The data were collected by the D0 experiment corresponding to an integrated luminosity of 9.7 fb-1. The matrix element technique is applied to ttbar events in the final state containing leptons (electrons or muons) with high transverse momenta and at least two jets. The calibration of the jet energy scale determined in the lepton + jets final state of ttbar decays is applied to jet energies. This correction provides a substantial reduction in systematic uncertainties. We obtain a top quark mass of mt = 173.93 +- 1.84 GeV.
http://hal.in2p3.fr/in2p3-01330122
Contributeur : Sylvie Flores
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Soumis le : vendredi 10 juin 2016 - 07:35:47
Dernière modification le : vendredi 4 janvier 2019 - 17:32:46
V.M. Abazov, U. Bassler, G. Bernardi, M. Besançon, D. Brown, et al.. Measurement of the Top Quark Mass Using the Matrix Element Technique in Dilepton Final States. Physical Review D, American Physical Society, 2016, 94, pp.032004. 〈10.1103/PhysRevD.94.032004〉. 〈in2p3-01330122〉
