Guido Altarelli Editor

Guido Altarelli (1941 – 2015) was a Senior Staff Physicist at the Theory Division of CERN and the Theory Division Leader from 2000 to 2004. Best known for his contribution on the QCD evolution equations for parton densities, known as the Altarelli- Parisi or DGLAP equations, he received the 2011 Julius Wess Award for Outstanding Achievements in Elementary Particle and Astroparticle Physics (KIT), the 2012 J. J. Sakurai Prize for Theoretical Particle Physics (APS) and the 2015 High Energy and Particle Physics Prize from the EPS.