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Resource planning

This document outlines the baseline assumptions for resource planning and requirements analysis pertinent to experiments scheduled from mid-February to November in 2010 and 2011. It details the anticipated schedule, including running periods for proton-proton (pp) and heavy ions (HI), the planned data collection in March and October, and the necessity for alignment on common assumptions about availability and operations. It highlights the importance of adjusting pledges, finalizing preliminary requirements, and maintaining clear communication with funding agencies for longer-term planning, including a potential overview for 2013.

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Resource planning

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  1. Baseline assumptions used by all experiments for requirements analysis Resource planning

  2. Present understanding of schedule for both 2010 and 2011 No break

  3. Prelim. schedule 2010/11/12 • 2010 + 2011 • Running from mid-Feb – end Nov • Pb-Pb in November • In principle stop after 1 fb-1 ; plan to run 2 years • (0.2 in 2010, remainder in 2011) • 2012: shutdown of accelerator (but not computing) • Guidance on availability for physics is 50% • Must agree common assumptions for #days etc. • 182 days pp and 28 days HI in each 2010,2011 • 7.9 Ms pp + 1.2 Ms HI each year assuming 50% avail • Experiments will also take data in March (pp setup) and Oct (HI setup) • Assume 30 + 14 days at 35% availability • 1.3 Ms each year • Totals: • 7.9 Ms pp, 1.2 Ms HI, 1.3 Ms “setup” in each of 2010 and 2011 • NB: For 2010 this is greater than assumptions used so far for 2010 requirements. Pledges will not change (and may decrease!) – must take care in what is said to funding agencies • Probably we should adjust the 2010 numbers to be not more than existing requirements

  4. Process now • Agree preliminary requirements for 2010, 2011,12 today • Including final agreement on assumptions and baseline • Foresee a MB in March with LHCC and RSG reps present to finalise and agree what is presented to RRB in April. • In principle should say something about 2013 to the RRB • Not clear what can be said yet • Guidance? • NB: many sites (160!!) now depend for their planning on the schedule of the accelerator. It is important that we have some clear published schedules ...

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