Linear power corrections to $e^{+}{e}^{-}$ shape variables in the three-jet region

Fabrizio Caola, Silvia Ferrario Ravasio, Giovanni Limatola +3

We use an abelian model to study linear power corrections which arise from infrared renormalons and affect event shapes in $e^{+}{e}^{-}$ annihilation into hadrons. While previous studie…