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Heavy quark fragmentation function in the noncommutative Standard Model

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Abstract.

The dominant mechanism to produce hadronic bound states with large transverse momentum is fragmentation. The hadronization processes are described by the fragmentation functions (FFs) which are universal and process-independent functions. In this paper, we study for the first time the noncommutative effects to the FF of a heavy quark to fragment into heavy mesons to leading order in the QCD coupling constant. As an example, we focus on the FF of a charm quark to split into the S-wave D-meson and compare our analytical results with both the experimental data and a well-known phenomenological model. Here, we compute the corrections of FFs induced by noncommutativity and find a bound on the energy scale where the noncommutative effects of the space-time will be relevant.

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Author information

Authors and Affiliations

  1. Faculty of Physics, Yazd University, P.O. Box 89195-741, Yazd, Iran

    S. Mohammad Moosavi Nejad & Effat Tajik

  2. School of Particles and Accelerators, Institute for Research in Fundamental Sciences (IPM), P.O. Box 19395-5531, Tehran, Iran

    S. Mohammad Moosavi Nejad

Authors
  1. S. Mohammad Moosavi Nejad
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  2. Effat Tajik
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Correspondence to S. Mohammad Moosavi Nejad.

Additional information

Communicated by R. Sharma

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Moosavi Nejad, S.M., Tajik, E. Heavy quark fragmentation function in the noncommutative Standard Model. Eur. Phys. J. A 54, 174 (2018). https://doi.org/10.1140/epja/i2018-12605-4

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  • DOI: https://doi.org/10.1140/epja/i2018-12605-4

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