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Título : Top quark mass measurement using the template method at CDF
Autor : Aaltonen, T., Álvarez González, B., Casal, Bruno, Cuevas, Javier, Gómez, G., Palencia, Enrique, Rodrigo, Teresa, Ruiz Jimeno, Alberto, Scodellaro, Luca, Vila, Iván, Vilar, Rocío
Fecha de publicación : Jun-2011
Editor: American Physical Society
Resumen: We present a measurement of the top quark mass in the lepton+jets and dilepton channels of tt̅ decays using the data sample corresponding to an integrated luminosity of 5.6  fb-1 of pp̅ collisions at Tevatron with √s=1.96  TeV, collected with the CDF II detector. We construct templates of two reconstructed top quark masses from different jets-to-quarks combinations and the invariant mass of two jets from the W decays in the lepton+jets channel, and a reconstructed top quark mass and mT2, a variable related to the transverse mass in events with two missing particles, in the dilepton channel. The simultaneous fit of the templates from signal and background events in the lepton+jets and dilepton channels to the data yields a measured top quark mass of Mtop=172.1±1.1(stat)±0.9(syst)  GeV/c2.
Descripción : 9 páginas, 2 figuras, 3 tablas.-- PACS numbers: 14.65.Ha, 12.15.Ff, 13.85.Ni, 13.85.Qk.-- CDF Collaboration: et al.
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ISSN: 1550-7998
DOI: 10.1103/PhysRevD.83.111101
Citación : Physical Review D 83(11): 111101(R) (2011)
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