We report two measurements of the top-quark mass Mtop using the CDF II detector at the Fermilab Tevatron in a 318pb-1 data sample of tt̄ events in the lepton+jets final state. One method uses an event-based likelihood technique resulting in Mtop=173.2-2.4+2.6(stat)±3.2(syst)GeV/c2 or 173.2-4.0+4.1GeV/c2. The second method reconstructs a top-quark mass in each event using the measured invariant mass of the hadronically decaying W boson to constrain the jet energy scale to obtain a value for Mtop of 173.5-3.6+3.7(stat)±1.3(syst)GeV/c2 or 173.5-3.8+3.9GeV/c2. We take the latter, which is more precise, as our result

CDF Collaboration, A. Abulencia, D. Acosta, J. Adelman, T. Affolder, T. Akimoto, et al. (2006). Precision Top Quark Mass Measurement in the Lepton + Jets Topology in ppbar Collisions at sqrt s = 1.96 TeV. PHYSICAL REVIEW LETTERS, 96(2), 1-7 [10.1103/PhysRevLett.96.022004].

Precision Top Quark Mass Measurement in the Lepton + Jets Topology in ppbar Collisions at sqrt s = 1.96 TeV

CASTRO, ANDREA;DENINNO, MARIA MADDALENA;MARGAROLI, FABRIZIO;MOGGI, NICCOLO';RIMONDI, FRANCO;ZUCCHELLI, STEFANO
2006

Abstract

We report two measurements of the top-quark mass Mtop using the CDF II detector at the Fermilab Tevatron in a 318pb-1 data sample of tt̄ events in the lepton+jets final state. One method uses an event-based likelihood technique resulting in Mtop=173.2-2.4+2.6(stat)±3.2(syst)GeV/c2 or 173.2-4.0+4.1GeV/c2. The second method reconstructs a top-quark mass in each event using the measured invariant mass of the hadronically decaying W boson to constrain the jet energy scale to obtain a value for Mtop of 173.5-3.6+3.7(stat)±1.3(syst)GeV/c2 or 173.5-3.8+3.9GeV/c2. We take the latter, which is more precise, as our result
2006
CDF Collaboration, A. Abulencia, D. Acosta, J. Adelman, T. Affolder, T. Akimoto, et al. (2006). Precision Top Quark Mass Measurement in the Lepton + Jets Topology in ppbar Collisions at sqrt s = 1.96 TeV. PHYSICAL REVIEW LETTERS, 96(2), 1-7 [10.1103/PhysRevLett.96.022004].
CDF Collaboration; A. Abulencia; D. Acosta; J. Adelman; T. Affolder; T. Akimoto; M. G. Albrow; D. Ambrose; S. Amerio; D. Amidei; A. Anastassov; K. Ani...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/24962
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