Home
For authors
Submission status

Current
Archive (English)
Archive
   Volumes 81-92
   Volumes 41-60
   Volumes 21-40
   Volumes 1-20
   Volumes 61-80
      Volume 80
      Volume 79
      Volume 78
      Volume 77
      Volume 76
      Volume 75
      Volume 74
      Volume 73
      Volume 72
      Volume 71
      Volume 70
      Volume 69
      Volume 68
      Volume 67
      Volume 66
      Volume 65
      Volume 64
      Volume 63
      Volume 62
      Volume 61
Search
VOLUME 75 (2002) | ISSUE 5 | PAGE 267
Low-energy gluon contributions to the vacuum polarization of heavy quarks
PACS: 02.70.Hm, 11.40.-q, 12.20.-m, 12.38.Bx
Abstract
We calculate a correction to the effective electromagnetic current at low energies induced by a heavy quark loop and determine the analytic structure of the vacuum polarization function at small q2 for which an explicit expression at the O(αs3) order of perturbation theory is given. Implications to the high precision analysis of experimental data on heavy quark production in e+e--annihilation are discussed.