Download - CMS Software and Physic project at HIP V. Karimäki Project evaluation meeting CERN, May 22, 2006.

CMS Software and Physic project at HIPV. Karimäki

Project evaluation meeting

CERN, May 22, 2006

22 May 2006 CMS Software and Physics 2

Outline

●Our mission●Project members●Members' special talents●Physics simulation overview●Electron/gamma overview●Geant4 work●Track based alignment of tracker elements●Grid computing●Test beam work●Plans and future challenges

Our mission

• Physics simulation

• Detector simulation

• Developing reconstruction algorithms

• Preparation for physics analysis, discovery potentials

• Developing calibration algorithms, particularly track based alignment and ECAL energy calibration

• Test beam on-line + off-line software and analysis

• To take care of our share of CMS computing challenge

• Calibration and analysis of forthcoming real data!



Project membersin CMS

Veikko Karimäki, PhD physicist 1990-Ritva Kinnunen, PhD physicist 1990- Kati Lassila-Perini, PhD physicist 1994-Sami Lehti, PhD physicist 1997-Tomas Linden, PhD physicist 1997-Aatos Heikkinen, PhD stud physicist 1996- Tapio Lampen, PhD stud physicist 1997-Jukka Nysten, PhD stud physicist 2000-Lauri Wendland, PhD stud physicist 1999-

In addition 2-4 Summer Trainees at CERN every yearTypical carrier path for young members: 1) CERN summer trainee2) diploma on particle physics 3) PhD studies in the projectWe are all physicists eager to continue our work with real data next yearafter a very long period of preparations!


Project members

Aatos,Geant4,expert of hadronicprocesses

Sami,physicssimulation&analysistalent

Tomas,computingspecialist,grid, clusters

Tapio,expert inalignmentwith tracks

iRitva,

Ritva,physicssimulation&analysistalent

LeLauri,DAQ expertH->specialist

Kati,CMS User SupportCoordinator,electron rec.

Jukka N,e/detection,tracker/ecalbeam tests

Jukka K,GRID computing,former project member


Physics simulation studieshttp://www.helsinki.fi/~karimaki/lhc/CMSReconstruction.html

• People involved: Ritva, Sami, Kati, Lauri, Aatos, Jukka, VK• MSSM H -> H± ->discovery potentials (Ritva, Sami, Lauri)• jet tagging for HLT and off-line (Lauri)• Tagging b jets with NN approach (Aatos, Sami)• Methods to enhance signal to background • CMKIN maintenance, kinematics generators interface (VK)

• Extensive contributions to the CMS PTDR Vols 1-2

• Active reporting in conferences• Referee work, thesis opponent (Ritva)• PhD thesis work (Lauri)


Electron/photon physics & reconstr.http://www.helsinki.fi/~karimaki/lhc/CMSReconstruction.html

• Kati, Jukka N.• tracker/ECAL reconstruction• photon conversions in tracker• ECAL test beam activities• energy calibration algorithms

• Kati now a User Support Coordinator• PhD thesis work (Jukka)

http://www.helsinki.fi/~karimaki/lhc/CMSReconstruction.html



Geant4 activitieshttp://www.helsinki.fi/~karimaki/lhc/CMSReconstruction.html

• Aatos (also Tapio contributed earlier)• Aatos member of Geant4 Steering Board

Jorma member of the Geant4 Oversight Board• Aatos co-coordinator of the Geant4 hadronic processes• nuclear evaporation model implemented (Tapio)• intranuclear cascade model implemented (Aatos)• production runs (Aatos, Tomas)• extensive students education activities (CERN & Helsinki)• organization of ”Finnish Geant4 symposia” (2002, 2005)• refereeing of Geant4 related papers in IEEE (Aatos)• acquired expertise is beneficial also for CMS work!



Track based alignmenthttp://www.helsinki.fi/~karimaki/lhc/CMSReconstruction.html

• Now Tapio and VK (earlier Aatos, Tomas, ...)

• Long term work and learning process

• Challenging mathematical formulations

• Innovation: H.I.P. algorithm (proved successful)

• Contributions to PTDR Vol 1

• Active reporting in conferences (Tapio)

• PhD thesis work (Tapio)

Alignment can be crucial for new discoveries!http://www.helsinki.fi/~karimaki/lhc/AlignmentSoftware.html

http://www.helsinki.fi/~karimaki/lhc/AlignmentSoftware.html

http://www.helsinki.fi/~karimaki/lhc/AlignmentSoftware.html


Grid computing at HIPhttp://www.helsinki.fi/~karimaki/lhc/CMSReconstruction.html

• Tomas, HIP grid coordinator• Designed and built Mill cluster at campus site• Ametisti cluster, part of M-grid of Finnish universities• Active participation in NDGF meetings• Several co-operation parties:

– Finnish IT Scientific Centre– HIP technology program– Dept of Physical Sciences

• Aiming at Tier 2 services for LHC experiments in Finland

• Tier 1 for Nordic countries – a common effort

• Funding request several MEUR – growing optimism

http://www.helsinki.fi/~tlinden/grid/grid_new.html


Test beam workhttp://www.helsinki.fi/~karimaki/lhc/CMSReconstruction.html

• Co-operation with the HIP tracker project

• Helsinki Silicon Beam Telescope (SiBT)

• Off-line analysis of test beam data (Tapio)

• Data acquisition code (Lauri)

• Developed alignment ideas

• Also involved in radiation hardness studies

• Very fruitful collaboration with tracker project!http://www.helsinki.fi/~karimaki/lhc/CMSReconstruction.html




Publications

• http://www.helsinki.fi/~karimaki/lhc/publAndNotes.html

– Despite CMS is not a running experiment, the group has been active in publishing, especially CMS Notes, Analysis Notes, Internal Notes and contribution to TDR’s: total about 90 publications since the change of millenium

– Also refereed articles in scientific journals and conferences: total about 75 publications since the change of millenium

http://www.helsinki.fi/~karimaki/lhc/publAndNotes.html


Conference and workshop organizations

The project members have organized a number of symposia and workshops:

– CERN School of Computing, Aug 21-Sep 1, 2006, Helsinki

– 2nd Nordic Grid Neighbourhood Conference, Otaniemi, 31.5. – 2.6., 2006

– 2nd Finnish Geant Workshop, Helsinki, 6-7 June, 2005

– 1st Finnish Geant Workshop, Helsinki, 2003

– The 3rd Nordugrid Workshop, 24-25 May, 2002

– Workshop on b / tau Physics at the LHC, 30.5.-1.6., 2002


Plans and future challenges

1 year goal (until the start of data taking mid 2007):• active tuning of the experiment software + documentation• active involvement in optimizing the alignment strategies• active involvement in designing the analysis strategies• collaboration with the HIP tracker project (test beam)

long term (data taking and running the experiment):

need all (and even more) manpower to:• maintain + improve software with real data• gradually improve the software alignment• control the quality of data• do competitive physics analysis