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Moving towards physics in 2008-2009

Stay informed on the latest physics and combined performance activities at CERN, including restructuring in ATLAS, software discussions, and new research initiatives in various physics areas. Join upcoming meetings to engage in preparation for analysis and discuss ongoing developments.

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Moving towards physics in 2008-2009

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  1. Moving towards physics in 2008-2009 • Tier-3 news • Restructuring of physics and combined performance in ATLAS • Physics and combined performance activities • Next meetings and content D. Froidevaux

  2. Tier-3 news • New fellow (M. Schott) and T. Koffas will work with R. Hawkings (and also with Markus E. and myself) to prepare Tier-3 for analysis. • Recent discussions in overall software about computing model are relevant for CERN staff because: • All AOD’s (2.5 versions) should be available at CERN. But how do we find out how true this is? Today, the tools do not exist for this • Severe disk space shortage at CERN for Tier-0/CAF: the above statement is put into question sometimes in the discussions • Analysis framework still unclear (many developments still ongoing)See for instance PAT meeting this week (07/05) and talk on EWPA (Every-Where Physics Analysis which was originally ElectroWeak) D. Froidevaux

  3. Rough current picture of physics activities • Standard Model physics. Convenor: Alex CerriFour areas of activity: • Min. bias physics: B. Demirkoz, A. Messina, I. Gavrilenko, D. Berge, R. Kwee, H. PerneggerJ. Tojo, M. Donega • Direct photon production (single and pairs)M. Delmastro, G. Lehmann, G. Unal, M. KataokaJ. Tojo, LAPP Annecy • Dileptons (low to high mass spectrum)T. Hryn’ova, E. Lytken, T. Kono, M. Aleksa, T. Carli, S. Palestini, B. GoriniM. Smizanska • Early tau physicsY. Coadou, B. Di Girolamo, T. Koffas, T. PetersenE. Richter-Was • W/Z inclusive and W/Z+jetsM. Schott, M. Goulette, T. Cornelissen, N. Ellis, D. FroidevauxE. Dobson, LAPP Annecy D. Froidevaux

  4. Rough current picture of physics activities • Supersymmetry. Convenor: Andreas HoeckerExtend work done over 2006-2007 on searches with lepton+jets+ETmiss to background studies with early dataP.-F. Giraud, S. Schaetzel, B. PetersenJ. Boyd,Geneva Univ. • Top-quark physics. Convenor: Richard HawkingsStudy final states containing tt+X, work on b-taggingM. Wilson, J. Stelzer, D. Berge, C. Schmitt, A. WildauerG. Gorfine • Higgs physics. Convenor: Guillaume UnalH to gg searchesA. HoeckerN. Berger (LAPP Annecy) D. Froidevaux

  5. Combined performance activities • Some really new effort developing here: • Using J/y to mm and ee decays to improve understanding of magnetic field, alignment and calibration of ATLAS detectorT. Hryn’ovaH. Sandaker, L. Chevalier • Work on high-level tools for tracking and EM calorimeter matching (alignment, E/p, material), using photon conversions, inclusive electrons, and basically all signal sources of interest before this can be refined with large samples of W/Z decaysM. Goulette, C. Schmitt, T. KoffasM. Donega (Univ. of Philadelphia) • Work on ETmiss issues with early data (from detector oddities, to detector cracks, to intrinsic detector performance) D. Berge D. Froidevaux

  6. Physics activities • Next CAT meetings: always on Fridays between 13h30 and 15h30 • 27/06 • 29/08 • 26/09 • 17/10 • 14/11 • 12/12 • We really need to ramp up our physics preparation activities over the coming 3-4 months (first collisions at 10 TeV may occur towards end of September!) • Next meeting will cover perhaps one or two of the recent or upcoming workshops (b-tagging, tau) but I will also ask some of the smaller working groups to report on their work, hopefully with some success! D. Froidevaux

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