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Estimation of the jet energy scale corrections using top quark events

A least-square kinematic fit using Lagrange multipliers is applied to enforce the W boson and top quark mass constraints in the reconstructed $pp\rightarrow t\overline{t}\rightarrow q\overline{q}b\mu\nu_{\mu}\overline{b}$ events. Residual corrections are estimated on the energy scale of the jets ari...

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Detalles Bibliográficos
Autor principal: Van Mulders, P
Lenguaje:eng
Publicado: 2008
Materias:
Acceso en línea:http://cds.cern.ch/record/1127299
Descripción
Sumario:A least-square kinematic fit using Lagrange multipliers is applied to enforce the W boson and top quark mass constraints in the reconstructed $pp\rightarrow t\overline{t}\rightarrow q\overline{q}b\mu\nu_{\mu}\overline{b}$ events. Residual corrections are estimated on the energy scale of the jets arising from both the light quarks in the W boson decay and the heavier bottom quark in the top quark decay. Utilizing the first integrated luminosity of 100 pb$^{-1}$ of proton collisions at 14 TeV detected by the CMS detector, an uncertainty smaller than 1\% can be obtained on the jet energy scale for both light and heavy jets.