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ATLAS Physics at LBNL. Jim Siegrist 25 February 2005. Near Term Physics Goals. A number of us are not really familiar with LHC physics We need to bring ourselves up to speed so that we can knowledgably join the ATLAS physics groups
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ATLAS Physics at LBNL Jim Siegrist 25 February 2005
Near Term Physics Goals • A number of us are not really familiar with LHC physics • We need to bring ourselves up to speed so that we can knowledgably join the ATLAS physics groups • We should focus our efforts and penetrate one ATLAS physics group to start • I think the best choice is SUSY, as it is sufficiently challenging to prepare us well for many other topics that you personally may find more interesting • Need to complement this with some study of selected SM processes – eg. Drell-Yan, Top
Timeline • It seems reasonable to try to bring the students up to speed to join ATLAS SUSY by say November this year (too aggressive?) • Divide available time into three epochs with expected level of effort: • First 10 weeks (Q1) (March – Mid-May). • Look at SM and SUSY processes at generator level (will need generator-ntuple and jetfinder for this (ok?)) • Read TDR Ch 20…think about low-luminosity limits of existing analysis • Read SUSY reference materials, more on ‘nuts and bolts’ of protons (TDR Ch 15,16,18 for SM processes) • Sign up on ATLAS SUSY, SM mailing list • Begin to think about analysis topics to pursue • Expect to use some evenings and a weekend day on this
Timeline (2) • Second Quarter (Q2) (Mid-May – July) • Learn to run ATLAS code – atlfast generator studies • Study ATLAS SUSY notes • Finish background reading • Begin analysis projects in earnest • Expect to spend about ½-1 day/week on this plus evenings and weekends • Third Quarter (Q3) (August-Oct) • Full-blown analysis in process, of eventual interest to ATLAS • Close look at SM processes as well • Move to 1 day/week level of commitment • Start to think about thesis topics of interest
First Steps – First Quarter Program • Read TDR • Compile reference list • Need a web volunteer to document our work – leave path for future students/postdocs • Continue Friday afternoon meetings to discuss progress, report on materials that we have read and digested or were unable to understand • Download tools (JAS, ROOT) for looking at generated events and get your computer setup • Consider a couple of generator level processes to start: • p+p -> Z -> f fbar • start with pure Z’s, then add SM background to see if you can still find them • post shared code on the web site
First Steps (2) • Look at a specific SUSY production channel at generator level to see if we can reconstruct it at generator level, and understand the decay • After those are done, move on to more SUSY decay modes in a similar vein