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Revisiting non-perturbative effects in the jet broadenings

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EPJ direct

Abstract

We show that taking into account the interplay between perturbative and non-perturbative effects, the power-suppressed shift to the broadening distributions becomes B dependent, and the non-perturbative contribution to the mean values becomes proportional to \(1/(Q\sqrt{\alpha_s(Q)})\). The new theoretical treatment greatly improves the consistency of the phenomenology with the notion of the universality of confinement effects in jet shapes.

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Authors and Affiliations

  1. Dipartimento di Fisica and INFN, Università di Milano-Bicocca, Sezione di Milano, Italy

    Yu.L. Dokshitzer, G. Marchesini & G.P. Salam

  2. St. Petersburg Nuclear Institute, Gatchina, St. Petersburg, 188350, Russia

    Yu.L. Dokshitzer

Authors
  1. Yu.L. Dokshitzer
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  2. G. Marchesini
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  3. G.P. Salam
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Corresponding author

Correspondence to Yu.L. Dokshitzer.

Additional information

This work was supported in part by the EU Fourth Framework Programme ‘Training and Mobility of Researchers’, Network ‘Quantum Chromodynamics and the Deep Structure of Elementary Particles’, contract FMRX-CT98-0194 (DG 12-MIHT).

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Dokshitzer, Y., Marchesini, G. & Salam, G. Revisiting non-perturbative effects in the jet broadenings. EPJ direct 1, 1–45 (2000). https://doi.org/10.1007/s1010599c0003

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  • DOI: https://doi.org/10.1007/s1010599c0003

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