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Kinematic fit of dilepton events in top quark mass measurement using the template method

  • Methods of Physical Experiment
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Abstract

The study of different modifications for the procedure of determining the reconstructed mass based on the kinematic fit for dilepton events to improve the precision of the top quark mass measurement using the template method is described. It is demonstrated that accounting for the top quark decay width from its mass reduces the statistical measurement error by approximately 20%. The possibility of using transfer functions for a detailed description of the connection between the experimentally measured energy characteristics of b jets and the momenta of b quarks that produced these jets is considered. The capabilities of the modified method as used for the “lepton plus track” sample of the CDF experiment are evaluated.

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Authors and Affiliations

  1. Italian National Institute for Nuclear Physics, Rome, Italy

    G. Bellettini & M. Trovato

  2. Faculty of Physics, University of Pisa, Pisa, Italy

    G. Bellettini & M. Trovato

  3. Joint Institute for Nuclear Research, Dubna, Russia

    Yu. A. Budagov, V. V. Glagolev & I. A. Suslov

  4. Fermi National Accelerator Laboratory, Batavia, USA

    G. V. Velev & G. A. Chlachidze

Authors
  1. G. Bellettini
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  2. Yu. A. Budagov
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  3. G. V. Velev
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  4. V. V. Glagolev
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  5. I. A. Suslov
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  6. M. Trovato
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  7. G. A. Chlachidze
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Additional information

Original Russian Text © G. Bellettini, Yu.A. Budagov, G.V. Velev, V.V. Glagolev, I.A. Suslov, M. Trovato, G.A. Chlachidze, 2009, published in Pis’ma v Zhurnal Fizika Elementarnykh Chastits i Atomnogo Yadra, 2009, No. 6 (155), pp. 778–797.

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Bellettini, G., Budagov, Y.A., Velev, G.V. et al. Kinematic fit of dilepton events in top quark mass measurement using the template method. Phys. Part. Nuclei Lett. 6, 471–482 (2009). https://doi.org/10.1134/S1547477109060090

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  • DOI: https://doi.org/10.1134/S1547477109060090

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