1. JINR participation in CMS Preparation for Data Taking and Analysis
JINR Topic /2013
I.A.Golutvin, S.V.Shmatov, A.V.Zarubin
JINR PAC, June 10, 2009
I.Golutvin and A.Zarubin “Report on JINR Topic /2005 and new Topic /13” JINR PAC, January 29, 2009
I.Golutvin, S.Shmatov, A.Zarubin “Preparation of the CMS Experiment for Data Taking and Analysis Report on JINR PAC, June 10, 2009
I.Golutvin, S.Shmatov, A.Zarubin “JINR participation in CMS Preparation for Data Taking and Analysis”, JINR PAC, June 10, 2009

2. Compact Muon Solenoid- CMS
Silicon Tracker
Detector subsystems are designed to measure: the energy and momentum of photons, electrons, muons, jets, missing ET up to a few TeV
Forward Calorimeter, HF
Muon Chambers
Tracker
Electromagnetic calorimeter, ECAL
Hadron calorimeter HCAL
PbWO4 ECAL
sampling brass HCAL
weight t
diameter - 14,60 m,
length - 21,60 m,
B-field - 4 Т
MUON Chambers
Superconducting Coil
diameter 6 m, length 13 m
Return Yoke
I.Golutvin, S.Shmatov, A.Zarubin “JINR participation in CMS Preparation for Data Taking and Analysis”, JINR PAC, June 10, 2009

3. In RDMS Collaboration are about 300 scientists
Ukraine 10
Bulgaria 21
Belarus 22
Uzbekistan 11
Georgia
Armenia 5
LPI 9
PNPI 36
MSU 27
ITEP 19
INR
IHEP 45
JINR 68
Russian Federation - 155
Dubna Member States - 80
JINR, Dubna - 68
CMS members:
countries
institutions
scientists
students
Associated members:
institutions
Russia
Russian Federation
Institute for High Energy Physics, Protvino
Institute for Theoretical and Experimental Physics, Moscow
Institute for Nuclear Research, RAS, Moscow
Moscow State University, Institute for Nuclear Physics, Moscow
Petersburg Nuclear Physics Institute, RAS, St.Petersburg
P.N.Lebedev Physical Institute, Moscow
High Temperature Technology Center of Research & Development Institute of Power Engineering, Moscow
Myasishchev Design Bureau, Zhukovsky
Electron, National Research Institute, St. Petersburg
High Energy Physics Institute, Tbilisi State University, Tbilisi
Institute of Physics, Academy of Science ,Tbilisi
Institute of Single Crystals of National Academy of Science, Kharkov
National Scientific Center, Kharkov Institute of Physics and Technology, Kharkov
Kharkov State University, Kharkov
Institute for Nuclear Physics, UAS, Tashkent
Dubna Member States
Yerevan Physics Institute, Yerevan
Byelorussian State University, Minsk
Research Institute for Nuclear Problems, Minsk
National Centre for Particle and High Energy Physics, Minsk
Research Institute for Applied Physical Problems, Minsk
Institute for Nuclear Research and Nuclear Energy, BAS, Sofia
University of Sofia, Sofia
Joint Institute for Nuclear Research, Dubna
I.Golutvin, S.Shmatov, A.Zarubin “JINR participation in CMS Preparation for Data Taking and Analysis”, JINR PAC, June 10, 2009

4. JINR Participation in CMS Construction
JINR participates in the CMS in a framework of the RDMS CMS Collaboration
RDMS bears
Full Responsibility
JINR
Participates SE HE
ME1/1
I.Golutvin, S.Shmatov, A.Zarubin “JINR participation in CMS Preparation for Data Taking and Analysis”, JINR PAC, June 10, 2009 4

5. Plus End : EE, HE, ME1/1+ ME1/1 HE EE
I.Golutvin, S.Shmatov, A.Zarubin “JINR participation in CMS Preparation for Data Taking and Analysis”, JINR PAC, June 10, 2009

6. Minus End: EE, HE, ME1/1 EE HE ME1/1
I.Golutvin, S.Shmatov, A.Zarubin “JINR participation in CMS Preparation for Data Taking and Analysis”, JINR PAC, June 10, 2009

7. The new CRAFT 2009 will start in July
Final Closure HF FS
The new CRAFT 2009 will start in July
I.Golutvin, S.Shmatov, A.Zarubin “JINR participation in CMS Preparation for Data Taking and Analysis”, JINR PAC, June 10, 2009

8. Strategy to prepare CMS for Data Taking and Physics Analysis
Detector Performance and Quality
Strict quality controls during detector construction in order to meet performance requirements
Commissioning of completed detectors in the underground caverns using cosmic rays and “LHC beams”
Commissioning and calibration with physics
Understanding SM backgrounds to Expected New Physics
Development and validation of simulation, reco and analysis software
15 years long test beam campaign in order to understand (and calibrate large parts of the detectors) and validate/tune software tools
detailed simulation of realistic detector including misalignments, material non-uniformities, etc. in order to test and validate calibration/alignment strategies
Development of Computing for data processing and analysis
Discovery of New Physics …
I.Golutvin, S.Shmatov, A.Zarubin “JINR participation in CMS Preparation for Data Taking and Analysis”, JINR PAC, June 10, 2009

9. Detector Performance and Quality
I.Golutvin, S.Shmatov, A.Zarubin “JINR participation in CMS Preparation for Data Taking and Analysis”, JINR PAC, June 10, 2009

10. CMS Cosmic Run CRAFT: Cosmic Run at Four Tesla
Oct-Nov’08: Run CMS for 6 weeks continuously to gain operational experience
Collected 300M cosmic events with tracking detectors and field (≈ 70% live-time). About 400 TB of data distributed widely
87% have a standalone muon track
reconstructed
3% have a global muon track with strip tracker hits (~7M)
3-4×10-4 have a track with pixel hits (~70k)
The new CRAFT 2009 will start in July
I.Golutvin, S.Shmatov, A.Zarubin “JINR participation in CMS Preparation for Data Taking and Analysis”, JINR PAC, June 10, 2009

11. CMS Performance with Cosmic Run
Alignment in Inner Tracker
Energy deposited by muons
HCAL
ECAL
radiative
ionisation
Points- data
total
Si Tracker
TOB
rms=24um
rms=47um
Barrel
Pixels
I.Golutvin, S.Shmatov, A.Zarubin “JINR participation in CMS Preparation for Data Taking and Analysis”, JINR PAC, June 10, 2009

12. CRAFT: Cosmic Ray Event
Two examples for ME1/1 and HE under full JINR responsibility
Muon DT
ECAL EE EB
HCAL HE, HB
I.Golutvin, S.Shmatov, A.Zarubin “JINR participation in CMS Preparation for Data Taking and Analysis”, JINR PAC, June 10, 2009

13. CRAFT: CSC Spatial Resolution
ME1/1 Example, other stations have also been studied
ME1/1 Spatial Resolution after additional cross-talk corrections
ME1/1
(ME1/1) = 112 mm per Layer
i.e.:
s = 1.87 % of strip width
(ME1/1) ~ mm per Station
Resolution versus Radius
I.Golutvin, S.Shmatov, A.Zarubin “JINR participation in CMS Preparation for Data Taking and Analysis”, JINR PAC, June 10, 2009

14. HE Calibration for the First LHC day
HCAL
Test Beam 07
HE Sourcing
CERN
Dubna
HE calibration constants
Calibration CERN
Data Base
RAW Data
HE Resolution
Scintillator brightening in magnetic filed
CRAFT08
I.Golutvin, S.Shmatov, A.Zarubin “JINR participation in CMS Preparation for Data Taking and Analysis”, JINR PAC, June 10, 2009

15. JINR Participation in CMS
Initial CMS Detector: Start-up on 10 September 2008
Inner Endcaps including endcap hadron
calorimeter HE and Forward Muon
Station ME1/1 of full JINR responsibility
demonstrated an efficient operation
with beam dumped on collimator (оn top) First Beam-Induced events in hadron calorimeters seen at CMS
and beam halo (оn bottom) in endcap muon system
The main effort of JINR in the CMS Project is concentrated on the design and construction of the end-cap detectors, where JINR bears full responsibility in the frame of the Russia and Dubna Member States (RDMS) CMS Collaboration. The main obligation of our Institute on construction and assembly of endcap hadron calorimeters has been fulfilled.
The main interest of JINR and RDMS physicists is focusing on physics beyond the Standard Model with dimuon masses in TeV-range.
Detectors of full JINR responsibility (ME1/1 and HE ) are ready for data-taking
I.Golutvin, S.Shmatov, A.Zarubin “JINR participation in CMS Preparation for Data Taking and Analysis”, JINR PAC, June 10, 2009

16. JINR participation in CMS Physics Program
I.Golutvin, S.Shmatov, A.Zarubin “JINR participation in CMS Preparation for Data Taking and Analysis”, JINR PAC, June 10, 2009

17. Physics Motivations (I)
Main goals of LHC Physics Program are
Search for Higgs bosons at the mass region
Search for physics beyond SM (SUSY, Extended Gauge Models,
TeV-scale gravity etc)
I.Golutvin, S.Shmatov, A.Zarubin “JINR participation in CMS Preparation for Data Taking and Analysis”, JINR PAC, June 10, 2009

18. Physics Motivations (II)
It is expected that many physics processes not observed so far can be studied in the channels with muons in the final states
search for Higgs boson in “gold” decay mode H  ZZ  4l (Z-bosons have to be detected in di-muon decays)
various models beyond the SM predict new physics processes with SM particles (quarks, gluons, electrons, photons and muons) in the final states (m ~ ТэВ)
Cross-sections of hadron signatures are higher, but muonic decays provide clear signatures with lower and controllable backgrounds!
Why dimuons? Because it is Compact MUON solenoid where Dubna group plays important role since conceptual design through PhTDR up to physics analysis!
strong B-field and long lever arm (from IP and tracker to Muon system) for precise momentum estimation
redundant muon trigger
high precision muon detectors
 priority in JINR physics program – search for new physics in di-muon channels at
the invariant mass region uncovered so far by other accelerators
Processes with jets have larger cross-sections (by order more than lepton ones), but worse background conditions  QCD studies, PDF’s, small-x physics or “tagging”
I.Golutvin, S.Shmatov, A.Zarubin “JINR participation in CMS Preparation for Data Taking and Analysis”, JINR PAC, June 10, 2009

19. RDMS CMS Physics Tasks
Forward Physics
Study of 2 jet production in hard single diffraction IHEP, SINP MSU, Erevan
Study of 2 jet production in central diffraction IHEP, ITEP, SINP, Erevan
Higgs
Search for Higgs bosons in decays into 2 photons, 4 leptons, 2 leptons JINR, ITEP, MSU, Kharkov
and 2 jets, 2 leptons and 2 neutrinos
QCD
Measurement of the gamma+jet cross-sections JINR, ITEP, SINP
Measurements of jet inclusive cross-section JINR
Search for BFKL effects at jet production PNPI, ITEP
Study of jet shapes JINR, ITEP, SINP
Study of jet fragmentation SINP MSU
EWK
Measurement of DY muon pair production JINR, Minsk, Gomel
Measurement of forward-backward asymmetry in muon pair production JINR
Measurement of triple boson couplings Minsk
Bose-Einstein correlations of gauge bosons (WW, ZZ) JINR
Top physics
Observing the t-channel single top process IHEP, SINP
SUSY
Search for sleptons and lepton flavor number violation INR
Exotics
Search for heavy neutrino and WR INR
Search for new resonances (extra dimensions and Z’) in DY JINR
Search for non-resonant di-muon signals from ADD and compositeness JINR
Heavy Ion
QGP hard probes (heavy quarkonia and jets) and soft probes (eliptic flow) SINP MSU
I.Golutvin, S.Shmatov, A.Zarubin “JINR participation in CMS Preparation for Data Taking and Analysis”, JINR PAC, June 10, 2009 19

20. JINR in CMS Physics Program
Physicists of JINR and member-states are involved in 5 groups of physics analysis (Higgs, Exotics, EWK, QCD, Forward Physics), 2 groups of physics object studies (Muon, Jet/MET) and 2 groups of detector system studies (Muon, HCAL)
JINR Physics Tasks
search for Higgs bosons (Higgs PAG/Muon and Jet/MET POG) (JINR + Kharkov)
H  ZZ  4l
H ZZ 2l2
studies of muon pair production in Drell-Yan processes (EWK PAG and Muon POG) (JINR + Minsk + Gomel)
search for physics beyond the SM (extra dimensions, extended gauge models, compositeness etc) in the channel with muon pairs (Exotica PAG and Muon POG) (JINR)
inclusive jet production and γ/Z + jet processes (QCD PAG and Jet/MET POG) (JINR)
Bose-Einstein correlations of gauge bosons (WW, ZZ) (EWK PAG) (JINR)
single and double diffractive (Forward Physics PAG) (Erevan)
anomalous coupling constants (WWW, ZZZ, …) (EWK PAG) (Minsk)
I.Golutvin, S.Shmatov, A.Zarubin “JINR participation in CMS Preparation for Data Taking and Analysis”, JINR PAC, June 10, 2009

21. Search for Higgs bosons
The number of Higgs bosons is not fixed: SM – 1, MSSM - 5, EGM – 2 ...
Experimental mass constrains:
≥ 114 GeV (LEP), ~ 170 GeV (3 fb-1, FERMILAB)
The favorable decays
H  
H  ZZ  4l : “gold” decay (JINR)
H  ZZ  2l + 2jet
H  WW  2l +2: ~6 times greater BR
compared to “gold-plated” (Kharkov)
Mass range to measure: up to ~ 1000 GeV
Expected luminosities to discover
(CMS Higgs Discovery Perfomance)
JINR participation: development of muon and jet
reconstruction algorithms, studies of systematic
effects, calibration of detector systems, physics
analysis
~ 1.8 fb-1
CMS PTDR 2006
I.Golutvin, S.Shmatov, A.Zarubin “JINR participation in CMS Preparation for Data Taking and Analysis”, JINR PAC, June 10, 2009

22. Di-Muon Physics
Measurements of di-muon cross-sections up to a few TeV invariant masses to test SM at the new energy region:
cross-section (discovery)
helicity structure of processes (spin discrimination)
forward-backward asymmetry of muons (gV/gA ratio: model discrimination)
Search for deviations from Standard Model background shape - distinctive experimental signature depends on the type of new physics.
resonance states:
spin-1 states: new heavy (m~ TeV) gauge bosons Z’ from extended gauge models and KK excitations of gauge bosons in TeV-1 models
spin-2 states: TeV-scale gravity models – heavy (m~TeV) RS1 Randall-Sundrum graviton
non-resonant state:
TeV-scale gravity model – light ADD (Arkani-Hamed-Dimopoulos-Dvali) graviton
compositeness models
JINR Participation: Full-scale program from theoretical studies up to final physics analysis
high efficiency of registration, triggering and reconstruction for muons
validations of reconstruction software with Monte-Carlo data, muon cosmic data, SPS and LHC (in future) beams
studies of influence of systematic effects on reconstruction performance (misalignment, material non-uniformities, B-filed, miscalibration etc)
I.Golutvin, S.Shmatov, A.Zarubin “JINR participation in CMS Preparation for Data Taking and Analysis”, JINR PAC, June 10, 2009

23. Features of high energy muons
Features of a muon of high energy (a few hundred GeV - TeV)
low trajectory curvature  limited pT estimation precision
bremsstrahlung and EM showering  contaminated events, problems with isolation
precision is sensitive extremally to detector misalignment
TeV muon in CMS muon stations
new algorithms (or improvements), new trigger
paths for high energy particles (no calorimeter isolation),
better understanding systematic effects, tested with MC
data and experimental data (cosmic muons and SPS
beam)
I. Belotelov et al.
CMS NOTE 2007/038
Muon pairs can be measured with
efficiency: 94÷92 %
mass resolution: 3.8÷7.2 %
spatial resolution: < 0.5 %
for invariant mass 1÷ 5 TeV/с2 !!!
I.Golutvin, S.Shmatov, A.Zarubin “JINR participation in CMS Preparation for Data Taking and Analysis”, JINR PAC, June 10, 2009

24. Performance for Registration of Physics Objects
CMS performance to measure the particle of the Standard model was studies for different
integrated luminosity scenarios starting from the first-LHC run up to ideal detector conditions.
 Each scenario is defined by our current knowledge of the performance of detector systems and reconstruction SW (miscalibration, misalignmnet, trigger efficiency etc)
For example the different misalignment scenario:
First-Data-Taking Scenario (10 pb-1)
Long- Data-Taking Scenario (100 pb-1)
Ideal Detector Scenario
Misalignment also does not effect trigger efficiency and mischarged probability
I. Belotelov et al.
CMS NOTE 2006/017
CMS PTDR 2006 24
SM particles decayed into muon pairs can be measured precisely with high accuracy
I.Golutvin, S.Shmatov, A.Zarubin “JINR participation in CMS Preparation for Data Taking and Analysis”, JINR PAC, June 10, 2009

25. SW Validation (GEANT-4)
SPS muon and pion beams (from 3 GeV up to 300 GeV)
Tests of CMS simulation software (GEANT4-based) used for simulation of CMS detector response
2004 Beam test on -beams
2004 Beam test on -beams
Electromagnetic secondaries
Punch-through
I. Belotelov et al.
CMS NOTE 2006//034
CMS PTDR 2006
GEANT4-based SW is described experimental data well enough
I.Golutvin, S.Shmatov, A.Zarubin “JINR participation in CMS Preparation for Data Taking and Analysis”, JINR PAC, June 10, 2009

26. Expected Uncertainties: Drell-Yan Example
SM background is also computed for each integrated luminosity scenarios in dependence of
physics tasks. Studies of BG processes assume:
Estimates of rates and optimization S/B-ratio by selection criteria
Estimates of theory- and detector-related uncertainties DY
After selection cuts Drell-Yan dominates over other processes dijets, Wjets, ttbar, WW, WZ, ZZ
Theory:
QCD and EW high-order corrections (K factors)
Parton Distribution Functions (PDF)
QCD scale (Q2)
Detector
Misalignment
B-filed
Pile-up
Trigger and reconstruction
Shape of background
Drell-Yan
smearing
(long-term data)
Theory-related uncertainties are dominant!!!
Need to be improved!!!
I. Belotelov et al.
CMS NOTE 2006/123
CMS PTDR 2006
Statistical errors are higher than
detector ones
I.Golutvin, S.Shmatov, A.Zarubin “JINR participation in CMS Preparation for Data Taking and Analysis”, JINR PAC, June 10, 2009

27. Example of CMS Discovery Potential
Tevatron limit is
920 GeV for c = 0.1
LHC first run
(CDF limit is 1.4 TeV)
Resonance states
non-resonant states
I. Belotelov et al.
CMS NOTE 2006/104
CMS PTDR 2006
I. Belotelov et al.
CMS NOTE 2006/076
CMS PTDR 2006
CMS discovery potential is up to 1.7 – 3.8 TeV mass reach for resonance states and 5.5 –
8.3 TeV of fundamental Planck scale for non-resonant 100 fb-1
Spin-1/Spin-2 discrimination can be done with muon angular distributions up to TeV
states
Forward-backward asymmetry can be measured precisely enough to fix gV/gA ratio
(which is sensitive to different extended gauge models)
 Z’ models can be discriminated up to masses of 2.5 TeV
I.Golutvin, S.Shmatov, A.Zarubin “JINR participation in CMS Preparation for Data Taking and Analysis”, JINR PAC, June 10, 2009

28. Computing, Data Processing and Analysis
Level 1 - Special Hardware
Level 2 - Embedded Processors
40 MHz (1000 TB/sec)
Level 3 – Farm of commodity CPUs
75 KHz (75 GB/sec)
5 KHz (5 GB/sec)
100 Hz (150 MB/sec)
Data Recording &
Offline Analysis
CMS events – 1.5 MB
trigger L1 – 75 GB/с
trigger HTL – 0.15 GB/с
data flow ~ 3 PetaB/year
I.Golutvin, S.Shmatov, A.Zarubin “JINR participation in CMS Preparation for Data Taking and Analysis”, JINR PAC, June 10, 2009

29. proper computing structure was developed (and in progress)
To perform above defined tasks on monitoring detector performance and data
quality, data processing, software development/validation and physics analysis the
proper computing structure was developed (and in progress)
support Tier-1 functionality
data management and data transfer
data processing
support Tier-2 functionality
Monte Carlo production and data analysis
staging of simulated events
support of HW resources and CMS SW
data management for RDMS Analysis Group
support Monitoring and Analysis Remote Room
monitoring of detector systems, data taking, data quality
I.Golutvin, S.Shmatov, A.Zarubin “JINR participation in CMS Preparation for Data Taking and Analysis”, JINR PAC, June 10, 2009

30. RDMS CMS Grid Sector
Tier-0
CERN
Other CMS Tier-1’s
CMS RDMS Tier-1
Tier-2
JINR
Dubna
Tier-2
SINP MSU
Moscow
Tier-2
INR
Troitsk
Tier-2
FIAN
Moscow
Tier-2
KIPT
Kharkov
Tier-2
Minsk
Tier-2
Erevan
Tier-2
ITEP
Moscow
Tier-2
IHEP
Protivino
Tier-2
PNPI
St.Petersburg
Tier-2
Sofia
Tier-2
Tbilisi
Russia
DMS
RDMS Grid Sector
To provide data management and data transfer to RDMS Tier-2 and data processing
in the framework of RDMS Physics Tasks the special СMS RDMS Tier-1 was created in CERN
I.Golutvin, S.Shmatov, A.Zarubin “JINR participation in CMS Preparation for Data Taking and Analysis”, JINR PAC, June 10, 2009

31. Data Processing in CMS JINR CERN Tier 0 Tier 1 RDMS CMS Tier 2 CMS AOD
Data taking (RAW)
Data Quality Monitoring
Calibration
Express Analysis (including selective reconstruction)
Data packing to transfer to Tier-1
Data management for Tier 1
Tier 1 RDMS CMS
Store of RAW data
Reconstruction:
RAW (1.5 MB/ev.)  RECO (0.25 MB/ev.)  AOD (0.05 MB/ev.)
Pre-reconstruction:
RAW  RECO
RECO: events with information on physics objects – clusters/hits, global tracks, vertexes, information on type of particles (particle identification), i.e. muons, photons, jets etc.
Reconstruction of physics objects:
RECO  AOD
AOD: final physics objects – tracks with associated hits, clusters in calorimeters, kinematics characteristics of particles- jets, muons, photons etc.
Data management for Tier 2 RDMS CMS
Tier 2 CMS
Simulation (Monte Carlo)
Physics Analysis
including:
Calibration and tuning with data
Development of algorithm for reconstruction and analysis and its testing with RAW and RECO data MC
AOD
RAW
Calibration
const.
RAW
JINR
Resources required for JINR :
Disk: ~ 180 TB
CPU: 680 KSI2K
CERN
I.Golutvin, S.Shmatov, A.Zarubin “JINR participation in CMS Preparation for Data Taking and Analysis”, JINR PAC, June 10, 2009

32. JINR Tier-2 is ready for Data Taking
JINR Tier-2 Readiness
During years the JINR Tier-2 was tested intensively in the CMS Computing, Software, Data and Analysis challenges (DC04, CSA06, CSA07) and also in Common Computing Readiness Challenge of 2008 (CCRC08).
Sites
Maintenance
Job Robot
T2-
uplinkT1
downlinkT1
SAM
Storage
(TB)
CPU (kSI2k)/
Job Slots
Physics Task
Association
IHEP R NR
8.13
90/36
INR) 47
180/75
ITEP 80
257/99
JET/MET POG
JINR
187
675/270
Exotica PAG Muon POG
PNPI
104
100/40
SINP MSU
124
257/103
HI PAG
FIAN 48
JINR Tier-2 is ready for Data Taking
I.Golutvin, S.Shmatov, A.Zarubin “JINR participation in CMS Preparation for Data Taking and Analysis”, JINR PAC, June 10, 2009

33. JINR Tier-2 Association with Physics Tasks
In accordance with JINR Physics Tasks where JINR actively participates the JINR CMS Tier-2 was associated by CMS to perform priority physics analysis:
Exotics Physics Analysis Group
to provide physics studies in the filed of physics beyond the Standard Model including searches for extra dimensions, extended gauge sector, compositeness etc
Muon Physics Objects Group
to provide development and testing of muon reconstruction and triggering algorithms and event processing software, systematic studies, user space for data processing
Also the central space in Kharkov will be allocated to studies of particular Higgs discovery channel: H  WW  2l +2
I.Golutvin, S.Shmatov, A.Zarubin “JINR participation in CMS Preparation for Data Taking and Analysis”, JINR PAC, June 10, 2009

34. JINR CMS Remote Centre
about 5 years since MTCC2006 JINR is established remote operations with experimental data
I.Golutvin, S.Shmatov, A.Zarubin “JINR participation in CMS Preparation for Data Taking and Analysis”, JINR PAC, June 10, 2009

35. JINR Monitoring and Analysis Remote Centre
Monitoring of detector systems
Data Monitoring / Express Analysis
Shift Operations (except for run control)
Communications of JINR shifter with personal at CMS Control Room (SX5) and CMS Meyrin centre
Communications between JINR experts and CMS shifters
Coordination of data processing and data management
Training and Information
I.Golutvin, S.Shmatov, A.Zarubin “JINR participation in CMS Preparation for Data Taking and Analysis”, JINR PAC, June 10, 2009

36. Prospects for physics with 2009/2010 data
I.Golutvin, S.Shmatov, A.Zarubin “JINR participation in CMS Preparation for Data Taking and Analysis”, JINR PAC, June 10, 2009

37. Example of the First Results @ 10 TeV
: 5 TeV beams and cm-2s-1
A,Lanyov and .S.Shmatov
CMS TeV Muon Working Meeting
CMS PAS in a progress
Z  µµ
RS1 Graviton  µµ
CMS
CDF Limit
2009 year a new stage of the CMS experiment will started
 new physics can be discovered if exists
I.Golutvin, S.Shmatov, A.Zarubin “JINR participation in CMS Preparation for Data Taking and Analysis”, JINR PAC, June 10, 2009

38. JINR Participation in Physics Analysis
HCAL, ECAL, ES and MЕ1/1 calibration, tuning, testing of muon and jet reconstruction algorithms, s/w for Data Quality Monitoring and express analysis
2009
start-up of 10 TeV data taking at low luminosity
21030÷32 sm-2s-1
The first physics analysis of Drell-Yan samples and inclusive jet production (comparison with Tevatron data) at the ~ TeV region. Diffraction events.
2010
0.2 fb-1
Expected Higgs signals
Physics analysis of Drell-Yan processes and looking for signals of higgs bosons and/or new physics in the invariant mass region uncovered so far (~ ТэВ).
Jet data in the new region of x and Q2 (QCD and diffraction)
measurements of the triple and quartic boson couplings
2011
start-up of 14 TeV data taking at low luminosity
1032 sm-2s-1
1-10 fb-1
2012
start-up of 14 TeV data taking at high luminosity 1034 sm-2s-1
Further Higgs and Top studies
Physics analysis of Drell-Yan processes and looking for signals of higgs bosons and/or new physics in the inv. mass region uncovered so far(~1.7 – 5.6 ТэВ).
Jet data in the new region of x and Q2
BEC of identical gauge bosons ZZ, W+W+, W-W-)
fb-1
2013
~ 300 fb-1
I.Golutvin, S.Shmatov, A.Zarubin “JINR participation in CMS Preparation for Data Taking and Analysis”, JINR PAC, June 10, 2009

39. New Physics can be discovered if exists already
Summary
JINR participation in CMS in framework of the RDMS is very successful
Detectors of full JINR responsibility (ME1/1 and HE ) are ready for data-taking
JINR plays a leading role in several physics tasks:
Higgs bosons, Extended Gauge Models, Extra Dimensions, EWK and QCD.
This activity is well visible in CMS
9 CMS analysis notes were prepared and defended for CMS Physics TDR
14 papers with CMS Physics Analysis/Computing were published for the last year only
many young physicists and students are involved in Physics Analysis
(4 PhD ‘s, more than 10 Diploma Theses)
RDMS GRID Computing Facilities based on the special RDMS Tier-1 centre at CERN and Tier-2 in Dubna provide efficient participation of JINR group in CMS data taking and physics analysis
JINR Group in CMS is ready to start physics analysis and waiting for the high energy p-p collisions
New Physics can be discovered if exists already
in 2010 with 200 pb-1 !!!
The main effort of JINR in the CMS Project is concentrated on the design and construction of the end-cap detectors, where JINR bears full responsibility in the frame of the Russia and Dubna Member States (RDMS) CMS Collaboration. The main obligation of our Institute on construction and assembly of endcap hadron calorimeters has been fulfilled.
The main interest of JINR and RDMS physicists is focusing on physics beyond the Standard Model with dimuon masses in TeV-range.
I.Golutvin, S.Shmatov, A.Zarubin “JINR participation in CMS Preparation for Data Taking and Analysis”, JINR PAC, June 10, 2009

40. Back-up
BACK-UP
dscsadscaccscvsdscscsa
The main effort of JINR in the CMS Project is concentrated on the design and construction of the end-cap detectors, where JINR bears full responsibility in the frame of the Russia and Dubna Member States (RDMS) CMS Collaboration. The main obligation of our Institute on construction and assembly of endcap hadron calorimeters has been fulfilled.
The main interest of JINR and RDMS physicists is focusing on physics beyond the Standard Model with dimuon masses in TeV-range.
I.Golutvin, S.Shmatov, A.Zarubin “JINR participation in CMS Preparation for Data Taking and Analysis”, JINR PAC, June 10, 2009

41. CMS Cosmic Runs Magnet Test & Cosmic Challenge, 2006
Cosmics Run at Zero (CRUZET ) and Four Tesla (CRAFT),
Energy deposited by muons
HCAL
CSC Spatial Resolution
Functionality and operation of detector
systems were tested
Detector system performance are in
a excellent agreement with
(HCAL, Muon, Ecal) TDR
(ME1/1) ~ mm per Station
I.Golutvin, S.Shmatov, A.Zarubin “JINR participation in CMS Preparation for Data Taking and Analysis”, JINR PAC, June 10, 2009 41

42. ADD Discovery limit @ LHC
jW(e/μ )
Real graviton production
s=14 TeV
L=100 fb-1
jW(τ)
jet + G  jet + high missing ET
Bckgr.: Z/W + jet  jet +  + /jet + l +
ISAJET with CTEQ3L
Fast simulation/reco
jZ()
Tot back
=2 MD=4 TeV
=2 MD=8 TeV
=3 MD=5 TeV
MD= 7.7, 6.2, 5.2 TeV
for n = 2,3,4
=4 MD=5 TeV
J. Phys., G 27 (2001)
ETmiss (GeV)
G  high-pT photon + high missing ET
Bckgr: +jets, +Z/W, W, QCD, cosmic
PYTHIA/SHERPA with CTEQ6L (S)
and PYTHIA/CompHEP/Madgraph (B)
Fast simulation/reco + 1 p. with full
(GEANT-4) MC + L1 + HLT(rigger)
Theoretical uncert.
J. Weng et al. CMS NOTE 2006/129
MD= 1 – 1.5 TeV for 1 fb-1
TeV for 10 fb-1
TeV for 60 fb-1
I.Golutvin, S.Shmatov, A.Zarubin “JINR participation in CMS Preparation for Data Taking and Analysis”, JINR PAC, June 10, 2009

43. RS1 Discovery Limit with CMS (II)
Di-photon states
M.-C. Lemaire et al.
CMS NOTE 2006/051
CMS PTDR 2006
two photons in the final state
Bckg: prompt di-photons, QCD hadronic jets
and gamma+jet events, Drell-Yan e+e-
PYTHIA/CTEQ5L
LO for signal, LO + K-factors for bckg.
Fast simulation/reco + a few points with
full GEANT-4 MC
Viable L1 + HLT(riger) cuts
Theoretical uncert.
Preselection inefficiency
G1
c=0.1
K. Gumus et al.
CMS NOTE 2006/070
CMS PTDR 2006
Di-jet states
Bckg: QCD hadronic jets
L1 + HLT(riger) cuts
5 Discovered Mass: TeV/c2
I.Golutvin, S.Shmatov, A.Zarubin “JINR participation in CMS Preparation for Data Taking and Analysis”, JINR PAC, June 10, 2009

44. 2009 year a new stage of the CMS experiment will started – new physics expected
: 5 TeV beams and cm-2s-1 luminosity  trigger, calibration, alignment, mass reach
2011: Start of physics run with 14 TeV at up to 1033 cm-2s-1 luminosity
2012: Physics run with 14 TeV at up to 1034 cm-2s-1 luminosity
I.Golutvin, S.Shmatov, A.Zarubin “JINR participation in CMS Preparation for Data Taking and Analysis”, JINR PAC, June 10, 2009

46. Суммарная эффективность регистрации ди-мюонов
acc
acc L1  HLT  offline
аксептанс
Различное поведение эффективности в области меньших масс обсуловлено различными механизмами рождения G*
и Z’(DY) 46

47.  + jet processe Jet cross-section for PDF improvements
CDF: Phys.Rev.D70:074008,2004
Jet cross-section for PDF improvements
Jet energy scale corrction
1.5*103 < Q2 < 105 GeV2 and 2*10-4 < x < 1
@ stat. 5%.

48. Jet Energy Scale

49. Resources required for JINR Physics Tasks in CMS
Disk space
Place
Remarks
Data processing and analysis
~30 TB*
Tier-2 JINR
Local Space
Mass production of MC data
20ТБ
10% от всего объема
Tier-2 (MC Space)
Allocated for CMS Exotics and Muon Working Groups
2x30 ТБ =
60 ТБ
Analysis Space
CMS Primary Data Sets
30 ТБ
Central Space
Remote Monitoring (ME1/1 и HE) and Express Analysis- ME1/1
- HE
2ТБ
NTC
Tier-2 JINR/
LHEP Monitoring and Analysis
Room
Software development and validation
- user space
private production
(1-1.5)x10 ТБ =
10-15 ТБ
20 ТБ
Tier-2 ОИЯИ/
User space
Service Tasks
5-7 ТВ
Transient Space while merging (tmp Space)
Итого:
~ 180 ТБ

50. Muon Propagation