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Contributions from Berlin to L1Calo: Joint Meeting Overview (March 2011)

This report covers the contributions and activities of the Humboldt University of Berlin group towards the L1Calo project, presented at the Joint L1Calo Meeting held in Cambridge from March 23-25, 2011. With participation in the ATLAS collaboration and collaborations with institutions like DESY, key group members discuss trigger development, physics analysis related to top quark decays, and future plans for L1Calo enhancements. Highlights include newly proposed algorithms, monitoring frameworks, and extensive collaboration efforts within academia.

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Contributions from Berlin to L1Calo: Joint Meeting Overview (March 2011)

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  1. Contributions from Berlin to L1Calo and presentation of the Group Joint L1 Calo Meeting 23. – 25. March 2011, Cambridge Martin zur Nedden, Humboldt-University of Berlin HU Berlin: L1 Calo activities (24.03.2011)

  2. HU Berlin: L1 Calo activities (24.03.2011) The HU Berlin Group

  3. HU Berlin: L1 Calo activities (24.03.2011) Particle Physics in Berlin • Member of ATLAS since July 2006 • collaboration with DESY, Zeuthen • Klaus Mönig, Ulrich Husemann, Hermann Kolanoski (retired) • 2 independent ATLAS groups at the Institute • Thomas Lohse: Trigger, Alfa and Top-Physics (EE1) • Heiko Lacker: SCT Upgrade and 4th generation (EE2) • Martin zur Nedden: deputy group leader • close collaboration of the groups • common meetings • common analysis software • separated financing • Close contact to the theory in the institute and at DESY • Peter Uwer (Phenomenology, HU) • Sven Moch (Phenomenology, DESY) • Common graduate School with HU Berlin, TU Dresden and DESY, Zeuthen

  4. HU Berlin: L1 Calo activities (24.03.2011) Group “EE1” • Group leaders: • Thomas Lohse, Martin zur Nedden • Postdocs: • in Berlin: Oliver Kind, Andreij Nikiforov, • at CERN: Ivana Hristova Antonio Sidoti (left) • PhD-Students: • at CERN: Ruth Herrberg, • in Berlin: Michelangelo Giorgi, Patrick Rieck (with Theory) • Diploma/Master Students: • Carsten Kendziorra, Lukas Heinrich, Umberto Prosperi, Sören Stamm • recent 3 Bachelor Students

  5. HU Berlin: L1 Calo activities (24.03.2011) Recent ATLAS Activities: Trigger • Development, implementing and commissioning of the ATLAS Trigger monitoring • Trigger Rate Presenter (Antonio Sidoti, Ivana Hristova) • Online DQMF and OHP for HLT • Trigger Steering Monitoring Software • Trigger offline Monitoring for the Tier0 reprocessing • Offline DQMF framework (han) for offline Shifter • Contributers to Trigger DQ software: Ivana Hristova, Michelangelo Giorgi, Lukas Heinrich, Ruth Herberg, Antonio Sidoti, Martin zur Nedden and many experts from the Slices • Documentation, tutorials, workshops • Coordination of Trigger Monitoring (Martin zur Nedden) • All systems well in place and commissioned • Transmitting form a developing phase to stable running and maintaining

  6. HU Berlin: L1 Calo activities (24.03.2011) Recent ATLAS Activities: Physics • Object selection for top decays • Analysis of single top (Oliver Kind) • in t-channel • in W+t channel • Introduction of a kinematical fit into the top analysis (Oliver Kind) • application to all top analyses • b-tagging (Martin zur Nedden) • calibrations and efficiency studies • convenorship of b-tagging Liaison of top-Group • Search for light charged Higgs Bosons (Martin zur Nedden) • in tau (hadronic) + lepton channel in ttbar production • in collaboration with TU Dresden

  7. HU Berlin: L1 Calo activities (24.03.2011) Other / Former Activities • Member of HERA-B up to the end • Responsible for second level trigger • b-production and J/ψ suppression in matter • Astroparticle Physics (Thomas Lohse) • Member of H.E.S.S. • New participation at CTA • Further ATLAS activities • Building of ALFA supporting structures in Berlin

  8. HU Berlin: L1 Calo activities (24.03.2011) Plans of HU Berlin for L1Calo

  9. HU Berlin: L1 Calo activities (24.03.2011) Plans for L1 Calo: Background • Discussions with TDAQ Management in September 2010: • HU Berlin whishes to share an upgrade project for the phase 1 luminosity upgrade now • There are no possibilities in Berlin for hardware contributions • Contribution to L1Calo with focus to simulation • Collaboration with U Mainz anticipated • We will bring in our experience from monitoring • Persons • Ivana Hristova (at CERN) and Andreij Nikiforov with 0.5 FTE each • Thomas Lohse, Martin zur Nedden (Group leaders) • Discussions taken place • One full day meeting in Mainz in November with all involved persons in Mainz • Phone Meeting with Steve Hillier in December 2010 an in person at February 2011 at CERN

  10. HU Berlin: L1 Calo activities (24.03.2011) Possible Fields of Activities • Development of algorithms for topological processor • Extended, deep studies of all possible topologies • Study also for higher luminosities • Study with real pileup events, test time consumption • Development of a framework and first studies started by Anreij Nikiforov • Simulation software within Athena • Understanding the interface between Athena and the simulation code • Prepare algorithms for topological processor to be transferred to VHDL • Sample preparation • High multiplicity minimum bias sample needed: special trigger • Hardware tests at CERN • Get involved in hardware activities for tests as soon hardware modules are available and tested at CERN • L1 Calo Monitoring • allready started by Ivana Hristova

  11. HU Berlin: L1 Calo activities (24.03.2011) L1 Calo Monitoring:Status and Plans

  12. HU Berlin: L1 Calo activities (24.03.2011) Overview of L1Calo Monitoring • Provide relevant information to shifters and experts • Based on Athena, can be used also offline • Scope of the work • Keep track of Athena releases at P1 • Updates for L1Calo monitoring software (svn, OKS, OHP) • Test changes in L1Calo standalone partition • Keep documentations up to date • Maintenance and development: • L1 calo monitoring in good shape in 2010 • L1Calo monitoring packages updated according to changes in simulation • New and/or modified histograms are implemented in OHP and DQMF

  13. HU Berlin: L1 Calo activities (24.03.2011) Contributions form HU Berlin • Contribute to the ongoing L1Calo operation and monitoring work • Participate in daily activities • Tasks since January 2011 (Ivana shadowed Taylor Childers) • Install up-to-date packages and releases at P1 • adjust athenaPT OKS configuration to new Athena setup, update OKS • test and deploy changes at P1 • update of documentations • Next projects • introduce PPM ADC pedestal histogram into OHP and DQMF • update threshold values of PPM LUT η/φ maps for high lumi

  14. HU Berlin: L1 Calo activities (24.03.2011) L1Calo OHP Pannel for PPM Pedestal cells with largest deviation from mean pedestal value in η/φ regions check of pedestal drift can be automated by inserting into DQMF also pedestal drift per channel can be monitored

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