## Working Groups

Linear physics : transition from electrostatic (e.g. interchange ) instabilities to Alfvèn waves. Non linear regime : same question. Role of kinetic effects. Key question : dependence of the turbulent flux on beta. Competition between various mechanisms of flow generation when increasing beta (Reynolds stress vs Maxwell tensor).
Organizers: B. Scott, X. Garbet
A. Das J. Candy
G. Falchetto P.K. Kaw
V. Naulin F. Zonca

Small scale electron transport (e.g. Electron Temperature Gradient driven modes). Mechanisms producing a significant electron transport with small scale (sub gyro-radius) instabilities (streamers, inverse cascade). Interplay between Kelvin-Helmholtz instabilities and streamers. Transport of test particles in an electromagnetic turbulence (in particular non diffusive behaviors).
Organizers: M. Ottaviani, W. Horton
J. Candy S. Champeaux
A. Das S-I Itoh
K. Itoh P.K. Kaw
B. Scott A. Smolyakov
F. Spineanu M. Vlad
M. Wakatani T. Watanabe
F. Zonca

Derivation of a mean field Ohm's law in a plasma turbulence. Subcritical turbulent states driven by anomalous diffusion (e.g. current diffusive ballooning modes, micro-tearing modes). Related effects in turbulent dynamo ("alpha" effect,...). Role of turbulent resistivity and diffusion in reconnection processes (turbulent reconnection). Role of kinetic effects.
Organizers: P.H. Diamond, X. Garbet
A. Das J. Connor
B. Carreras D. Hugues
S-I. Itoh K. Itoh
P.K. Kaw E.J. Kim
B. Scott A. Smolyakov
E. Vishniac E. Zweibel

Turbulence self-organization via the generation of macroscopic fields: dynamo effects (generation of large scale magnetic fields) and zonal flows (mesoscale velocity fluctuations). Competition zonal fields/ zonal flows. Competition zonal flows/streamers. Role of secondary instabilities (e.g. Kelvin-Helmholtz, micro-tearing modes). Avalanches.
Organizers: S. Benkadda, P.H. Diamond, T.S. Hahm
A. Das B. Carreras
J. Candy E.J. Kim
B. Scott S. Champeaux
A. Das D. Hughes
S-I Itoh K. Itoh
P.K. Kaw Z. Lin
A. Smolyakov E. Vishniac

Generation of shear flow by a macroscopic MHD mode : impact on turbulent transport. Transition from macroscopic MHD modes to turbulence. Transport due to MHD modes (e.g. Edge Localized Modes in tokamaks). Role of a stochastic magnetic field on turbulence (e.g. ergodic divertor in tokamaks).
Organizers: B. Carreras, P. Beyer
A. Das J. Connor
D. Hughes P.K. Kaw
B. Scott A. Smolyakov
M. Wakatani