The 2015 High Energy and Particle Physics Prize , for an outstanding contribution to High Energy Physics, is awarded
to
James D. Bjorken for his prediction of scaling behaviour in the structure of the proton that led to a new understanding of the strong interaction
and to
Guido Altarelli, Yuri L. Dokshitzer, Lev Lipatov, and Giorgio Parisi for developing a probabilistic field theory framework for the dynamics of quarks and gluons, enabling a quantitative understanding of high-energy collisions involving hadrons.
More information: here