The HL-LHC project has now completed the transition between the Design Study phase, carried out under the umbrella of the FP7 HiLumi Design Study, and the construction phase. The time of the final prototyping validation is approaching rapidly (2017) and the recent success of a number of short model magnets, 11 T dipoles (CERN), MQXF (US-LARP and CERN), superferric corrector (INFN-LASA), is a strong encouragement for the project.

While LHC Run 2 is delivering a large harvest of collisions and excitement is growing in the HEP community for the exploration of a new land of discovery in the 13 TeV region, the HL-LHC project faces a new challenge: a thorough 2nd Cost and Schedule Review (C&SR) on 17-19 October 2016, by an International Panel (the CERN Machine Advisory Committee, reinforced with five other experts) called to do a check-up of the project and its state of health.

Following the 5th Joint HiLumi LHC-LARP Annual Meeting on 26-30 October 2015 at CERN and the LARP Collaboration Meeting 26 held at SLAC on 18-20 May 2016, the 6th HL-LHC Collaboration Meeting will be jointly organised by CEA and CERN at the Espace St Martin in Paris, France from 14 to 16 November 2016.

This Annual Meeting will see the participation of all major HL-LHC collaborators: the US-LARP* collaboration (also on the verge of making the transition toward the so-called HL-LHC Accelerator Upgrade project), KEK-JP, CEA-FR, CIEMAT-ES, INFN-IT, the British Institutes**, Uppsala University-SE, and many other Institutes. This year, the meeting will be based on the traditional format of plenary and work package parallel sessions, and aims to review the technical progress, the performance reach and coherence of the project baseline after the configuration changes carried out in June this year, and in view of the recent LHC luminosity performance at 13 TeV. The outcome of the 2nd C&SR will be discussed and the process to launch the Technical Design Report (version 1), the future base of the project construction, will also be initiated. Additionally, this Annual Meeting will host the 6th meeting of the newly structured Collaboration Board.

Furthermore, a visit of the Synergium and a satellite meeting (WP3 Magnets) are planned at CEA-Saclay in the framework of the Collaboration Meeting on Thursday 17 November 2016.

Participation is by invitation only, and registration is mandatory and without fee.