Joachim Meyer (DESY) SHORT PHYSICS SUMMARIES  :    g - 2

  This is http://www-h1.desy.de/~jmeyer/physics/g.minus.2/welcome.html

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 Brookhaven g - 2 Experiment
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 Paper     hep-ex/0102017
  
 Measurement of  a=( g-2 )/2   of the muon

 Result  
  
  Experiment  a = ( 11 659 202 +- 14 +- 6 ) * 10**(-10)   1.3 ppm accuracy

  Theory      a = ( 11 659 159.6 +- 6.7   ) * 10**(-10)   0.6 ppm accuracy

   a_exp - a_theory  = ( 43 +- 16  ) * 10**(-10)  2.6 sigma effect 

 
 Their fig. 5, a compilation of recent mesurements of a is shown   here 
  
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 A theoretical review of the new situation (Czarnecki,Marciano) you find in
 
  hep-ex/0102122


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