We present a measurement of the top quark mass in the lepton + jets and dilepton channels of t (t) over bar decays using the data sample corresponding to an integrated luminosity of 5.6 fb(-1) of p (p) over bar collisions at Tevatron with root 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 m(T2), 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 M(top) = (172.1 +/- 1.1(stat) +/- 0.9(syst)) GeV/c(2).

Top quark mass measurement using the template method at CDF

CIOCCI, MARIA AGNESE;DONATI, SIMONE;PUNZI, GIOVANNI;F. Ruffini;
2011-01-01

Abstract

We present a measurement of the top quark mass in the lepton + jets and dilepton channels of t (t) over bar decays using the data sample corresponding to an integrated luminosity of 5.6 fb(-1) of p (p) over bar collisions at Tevatron with root 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 m(T2), 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 M(top) = (172.1 +/- 1.1(stat) +/- 0.9(syst)) GeV/c(2).
2011
T., Aaltonen; B., Álvarez González; S., Amerio; D., Amidei; A., Anastassov; A., Annovi; J., Antos; G., Apollinari; J., Appel; A., Apresyan; T., Arisaw...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11568/828495
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