Novel real-time alignment and calibration of the LHCb detector in Run II

Stable, precise spatial alignment and PID calibration are necessary to achieve optimal detector performance. During Run II, LHCb will have a new real-time detector alignment and calibration to allow equivalent performance in the online and offline reconstruction to be reached. This offers the opportunity to optimise the event selection by applying stronger constraints, and to use hadronic particle identification at the trigger level and even to perform physics analysis directly on the trigger output. The computing time constraints are met through the use of a new dedicated framework using the multi-core farm infrastructure for the trigger. The motivation for a real-time alignment and calibration of the LHCb detector is discussed both from the operative and physics performance point of view. Specific challenges of this novel configuration are discussed, as well as the designed framework and its performance.