The LHC Performance Workshop (Chamonix 2017) will take place from 23 to 26 January 2017 in Hotel Les Aiglons in Chamonix.
Chair : Frédérick Bordry
Scientific Secretaries: Benoît Delille, Markus Zerlauth
Attendance is by invitation only.
A summing-up session will take place at CERN Main Auditorium on 1st March 2017 p.m. (date to be confirmed).
Please register before 12 December.
This session will cover the conclusions/recommendations from Evian and the lessons learnt from the 2016 run
A review of the possible optics configurations for the 2017 LHC run will be made. The two candidates, i.e., the nominal and the ATS optics will be compared in order to assess pros and cons of each option. Main aspects considered will be: chromatic properties, collimation and machine protection, flexibility to accommodate requests from forward physics, and efficiency in terms of squeeze time. An overview of longer-term developments will be outlined.
This talk will look at different options for luminosity levelling for 2017, namely levelling by
separation, by beta* and by crossing angle. The current experience from regular operation and
MD will be recalled for each levelling technique. The implications on operation of each method
will be discussed and the the pros and cons will be presented. The state of readiness and the
effort to make each method operational will be quantified. As a conclusion, a recommendation
for a lumi-levelling roadmap will be presented.
LHC has reached the equator of Run 2 with an impressive performance beyond design, mostly thanks to smaller beam emittances, smaller beta* and an excellent machine efficiency. MD results anticipate that there is room to continue pushing the machine performance throughout Run 2.
In addition to this, the upcoming machine upgrades, LIU and HL-LHC, set new challenges that require dedicated exploration to anticipate potential obstacles. Potential MDs for Run 2 and their priorities are discussed.
LIU and HL-LHC common ground talks
An update wrt the presentation done at the LS2 kick-off days (Sep-2015) of the programme for the LHC forward experiments will be given. Il will especially focus on plans for LS2 (and LS3)