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Measurement of the Top-Quark Mass in All-Hadronic Decays in pp Collisions at CDF II

CollaborationWith : Campanelli, Mario / Clark, Allan Geoffrey / Donega, Mauro / Moed, Shulamit / Sfyrla, Anna / Vallecorsa, Sofia / Wu, Xin
Published in Physical Review Letters. 2007, vol. 98, no. 14, p. 142001
Abstract We present a measurement of the top-quark mass Mtop in the all-hadronic decay channel tt→W+bW−b→q1q2bq3q4b. The analysis is performed using 310  pb−1 of s√=1.96  TeV pp collisions collected with the CDF II detector using a multijet trigger. The mass measurement is based on an event-by-event likelihood which depends on both the sample purity and the value of the top-quark mass, using 90 possible jet-to-parton assignments in the six-jet final state. The joint likelihood of 290 selected events yields a value of Mtop=177.1±4.9(stat)±4.7(syst)  GeV/c2.
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CDF COLLABORATION. Measurement of the Top-Quark Mass in All-Hadronic Decays in pp Collisions at CDF II. In: Physical Review Letters, 2007, vol. 98, n° 14, p. 142001. https://archive-ouverte.unige.ch/unige:38408

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Deposited on : 2014-07-01

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