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JETP Letters

, Volume 107, Issue 2, pp 73–78 | Cite as

On the Use of the Running Coupling Constant αs in Calculations of Radiative Energy Losses of Fast Partons in a Quark–Gluon Plasma

  • B. G. Zakharov
Fields, Particles, and Nuclei
  • 14 Downloads

Abstract

The introduction of the running coupling constant αs for a gluon emission vertex in calculations of radiative energy losses of partons in a quark–gluon plasma is discussed. It is argued that the virtuality scale for the running coupling constant αs for induced emission of gluons is determined by the square of the transverse momentum of an emitted gluon rather than by the square of the invariant mass of the final two-parton state often used in the literature.

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Copyright information

© Pleiades Publishing, Inc. 2018

Authors and Affiliations

  1. 1.Landau Institute for Theoretical PhysicsRussian Academy of SciencesChernogolovka, Moscow regionRussia

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