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Calculation of QCD parameters by using the jet resolution parameter

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Abstract

We describe the measurement of the coupling constant from both the dispersive and the shape function models. This parameter depends on the scale at which the QCD process occurs. We present distributions of the jet resolution parameter (Y 3). This parameter is one observable among the event shape variables. Both models are divided into the perturbative as well as the non-perturbative regions. The average value of the strong coupling constant is α s = 0.11887 ± 0.03537 being consistent with world average. We will explain all these features in this paper.

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Authors and Affiliations

  1. Department of Physics, Faculty of Sciences, Ferdowsi University of Mashhad, 91775-1436, Mashhad, Iran

    R. Saleh-Moghaddam & M. E. Zomorrodian

Authors
  1. R. Saleh-Moghaddam
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  2. M. E. Zomorrodian
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Correspondence to R. Saleh-Moghaddam.

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Saleh-Moghaddam, R., Zomorrodian, M.E. Calculation of QCD parameters by using the jet resolution parameter. Jetp Lett. 101, 221–227 (2015). https://doi.org/10.1134/S0021364015040116

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  • DOI: https://doi.org/10.1134/S0021364015040116

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