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Measurement of the Top Quark Mass Using the Template Method in the Lepton Plus Jets Channel with in Situ W ---] J J Calibration at CDF-II.

T. MaruyamaY. K. KimS. KimK. SatoS. XieG. BellettiniL. DemortierA. GibsonJ. BudagovG. VelevG. ChlachidzeU. K. YangP. SinervoT. TomuraE. BrubakerJ. F. ArguinJahred A. AdelmanM. Shochet

出版	United States. Department of Energy, 2006
URL	http://books.google.com.hk/books?id=Z-aKAQAACAAJ&hl=&source=gbs_api

註釋We report an updated measurement of the top quark mass in the lepton plus jets channel of t{bar t} events from p{bar p} collisions at {radical}s = 1.96 TeV. This measurement uses a dataset with integrated luminosity of 680 pb{sup -1}, containing 360 t{bar t} candidates separated into four subsamples. A top quark mass is reconstructed for each event by using energy and momentum constraints on the top quark pair decay products. We also employ the reconstructed mass of hadronic W boson decays W {yields} jj to constrain in situ the largest systematic uncertainty of the top quark mass measurement: the jet energy scale. Monte Carlo templates of the reconstructed top quark and W boson mass are produced as a function of the true top quark mass and the jet energy scale. The distribution of reconstructed top quark and W boson mass in the data are compared to the Monte Carlo templates using a likelihood fit to obtain: M{sub top} = 173.4 {+-} 2.8 GeV/c{sup 2}.