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“Demokritos” Participation in CMS at CERN

“Demokritos” Participation in CMS at CERN. INP Activities at CMS/CERN experiment. CMS. ATLAS. “Demokritos” Participation in CMS at CERN. GVA. C ircular T unnel 27 km in circumferenc e. B uried around 50 to 175 m underground. 5000 superconducting magnets. CERN.

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“Demokritos” Participation in CMS at CERN

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  1. “Demokritos” Participation in CMS at CERN INP Activities at CMS/CERN experiment

  2. CMS ATLAS “Demokritos” Participation in CMS at CERN GVA Circular Tunnel 27 km in circumference. Buried around 50 to 175 m underground. 5000 superconducting magnets CERN

  3. “Demokritos” Participation in CMS at CERN

  4. The INPD-CMS Collaboration NCSR ‘Demokritos’, Institute of Nuclear Physics, CMS members & associates Staff M. Barone, G. Daskalakis, T. Geralis, A. Kyriakis, D. Loukas, A. Markou, Ch. Markou. Technical Support C. Filippidis, I. Papadakis. Ph.D. Students I. Manolakos, Ch. Mavrommatis, E. Ntomari, E. Petrakou. Post-doct. S. Kesisoglou ACTIVITIES during the life cycle of the CMS EXPERIMENT • DETECTOR • CONSTRUCTION • Trigger/DAQ • Pre-shower detector • Test-Beams • Physics Studies (MC) • Software development (Physics Tools) • PHYSICS ANALYSIS • EWK Physics • SM Higgs & alternative models • MSSM Higgs Searches • SUSY Searches • RUNNIG PHASE • Data taking (shifts) GRID Computing Cluster

  5. The CMS Trigger and DAQ CMS Trigger and Data Acquisition System: LHC collisions at 40MHz, Level1 Trigger at 100kHz High Level Trigger at 100 Hz • Read Out Units (Rus) • Constructed and tested in collaboration • with Greek Industry, 22 RU units (IOPs) • Validated the feasibility of the Trigger and • DAQ System IOP card with on board CPU, 3 PCI buses Altera FPGA 2) Global Trigger Processor Emulator – GTPe: 10 Full systems delivered to CMS. Designed, Built, mounted and tested at INP. FPGA 400kGates (Mixed firmware VHDL and Handel-C) developed at INP Capabilities: Random Triggers up to 4 MHz (nominal 100kHz), Event Packaging, Communication to Event Manager, Accept backpressure signals from detectors and DAQ partitions

  6. The CMS Trigger and DAQ Full GTPe System – Test bench at INP A GTPe System in the CMS preseries tests 1 GTPe in Central CMS DAQ 5 GTPe in CMS preseries 2 GTPe in Development lab 2 GTPe spare “The Global Trigger Processor Emulator for the CMS experiment” has been published in IEEE Trans.Nucl.Sci.52:1679-1684,2005 10 Full GTPe Systems delivered to CMS (5 in 2005-2007 and 5 new ones in 2010

  7. The CMS Pre-shower Motivation Preshower (20cm) Signal Background  0  Silicon detectors lead TRACKER -15°C

  8. Greek Contributions to the CMS Pre-shower • The CMS Preshower Detector • 15 years of development & Construction • 4288 micromodules in 8 Dees • 600 micromodules made by I.N.P. • Close collaboration with Greek Industry 4500 hybrids assembled by PRISMA

  9. Greek Contributions to the CMS Pre-shower

  10. INP Computer Cluster – CMS GRID INP Cluster currently has ~ 100 CPUs ~ 25 Tbytes storage space Has been a Tier-3 site in the CMS Grid infrastructure until last year. Since the beginning of 2010, it operates as a local cluster, with all the CMS software fully operational – and serves the local users of the Institute.

  11. LHC Principal Goal : Explore a new energy/distance scale Dark matter My life as a boson SUSY partners Extra Dimensions Tiny Black Holes q-g plasma SM(t,b, QCD,E/W) … !!! UNEXPECTED!!!

  12. CMS Demokritos Physics - I • Test-Beam & Physics Tools development: • ECAL test-beam data analysis. • Development of π0 rejection algorithmsfor converted and unconverted photons. • ECAL Dead Channel recovery algorithms. • Physics Analyses at simulation level • FCNC decays of Top quarks, • SUSY search at LM4, • MSSM Higgs searches, • Little Higgs searches. • Physics Analyses on first CMS/LHC data : • Cross section measurement of W and Z in the electron channel (results shown in ICHEP) • Measurement of Zγ (ISR) production and TGC measurement

  13. CMS Demokritos Physics - II

  14. Summary - Outlook The CMS Group of Demokritos has made marked contributions to the construction of CMS in the areas of the Pre-shower detector & Trigger/DAQ as well as in the preparation of the software & Physics. Effort is currently shifting to physics exploitation of the CMS detector by analysing the first 3 pb-1 of data already delivered by the LHC. Most probably we ‘ll have 30 pb-1 by the end of 2010.

  15. Waiting for a new discovery…

  16. TRACKER Silicon Microstrips Pixels n γ  4T μ+ 2T e- π+ ECAL Scintillating PbWO4 crystals SUPERCONDUCTING COIL MUON CHAMBERS Drift Tube Chambers Resistive Plate Chambers Cathode Strip Chambers IRON YOKE HCAL Plastic scintillator/brass sandwich

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