1302.0111 (Cédric Lorcé)

Canonical and kinetic decompositions of the proton spin    [PDF]

Cédric Lorcé

We propose a short summary of the present situation concerning the proton spin decomposition. We briefly discuss some of the main controversies about the issues of gauge invariance, uniqueness and measurability. As a conclusion, we argue that part of the controversies is actually undecidable.

View original: http://arxiv.org/abs/1302.0111