Speaker
Description
Shower Monte Carlo generators simulate fully realistic collider events, and reproduce much of the data from the LHC and its predecessors. Their core is represented by Parton Shower~(PS) algorithms, which provide the inclusion of soft radiation and enable us to mimic a realistic high-multiplicity collider event. The flexibility of these tools comes at a cost of a lower accuracy, which can lead to large systematic uncertainties and compromise the physics potential of the LHC and future colliders. In this talk I will discuss the criteria introduced by the PanScales collaboration to assess the logarithmic accuracy of PS's. I will also show new results for the PanScales dipole showers, which represent the first family of dipole showers with demonstrated NLL accuracy for Drell-Yan and gluon-fusion production at hadron colliders.
