10–15 Sept 2012
Puerto del Carmen, Lanzarote
Europe/Lisbon timezone

Accessing the quark orbital angular momentum with Wigner distributions

12 Sept 2012, 11:05
20m
Puerto del Carmen, Lanzarote

Puerto del Carmen, Lanzarote

Canary Islands (Spain)
Talk at plenary session Spin Physics Spin Physics (II)

Speaker

Dr Cedric Lorce (IPNO and LPT Orsay, Universite Paris-Sud)

Summary

The quark orbital angular momentum (OAM) has been recognized as an important piece of the proton spin puzzle. A lot of effort has been invested in trying to extract it quantitatively from the generalized parton distributions (GPDs) and the transverse-momentum dependent parton distributions (TMDs), which are accessed in high-energy processes and provide three-dimensional pictures of the nucleon. Recently, we have shown that it is more natural to access the quark OAM from the phase-space or Wigner distributions. We discuss the concept of Wigner distributions in the context of quantum field theory and show how they are related to the GPDs and the TMDs. We summarize the different definitions dis

Primary author

Dr Cedric Lorce (IPNO and LPT Orsay, Universite Paris-Sud)

Presentation materials