A POWHEG generator for deep inelastic scattering

A POWHEG generator for deep inelastic scattering

Blog Article

Abstract We present a new event generator for the simulation of both neutral- and charged-current POE Switches/Injectors deep inelastic scattering (DIS) at next-to-leading order in QCD matched to parton showers using the POWHEG method.Our implementation builds on the existing POWHEG BOX framework originally designed for hadron-hadron collisions, supplemented by considerable extensions to account for the genuinely different kinematics inherent to lepton-hadron collisions.In particular, we present new momentum mappings that conserve the special kinematics found in DIS, which we use to modify the POWHEG BOX implementation of the Frixione-Kunszt-Signer subtraction mechanism.

We compare our predictions to fixed-order and resummed predictions, as well Nakiri as to data from the HERA ep collider.Finally we study a few representative distributions for the upcoming Electron Ion Collider.