JINR participation in CMS JINR Topic /2013 JINR participation in CMS JINR Topic /2013 Anatoli Zarubin JINR SC, 15 September, 2011

2 RDMS Participation in CMS Project  Russia, JINR and JINR member-states participate in the CMS experiment as RDMS CMS Collaboration  In fact RDMS physicists have participated in CMS since 1992 even before formal decision were made and agreements were signed.  Dubna Member States participate in CMS thought the JINR  Russia, JINR and JINR member-states participate in the CMS experiment as RDMS CMS Collaboration  In fact RDMS physicists have participated in CMS since 1992 even before formal decision were made and agreements were signed.  Dubna Member States participate in CMS thought the JINR

3 In RDMS are about 300 scientists Ukraine 10 Bulgaria 21 Belarus 22 Uzbekistan 11 Georgia 11 Armenia 5 LPI 9 PNPI 36 MSU 27 ITEP 19 INR 19 IHEP 45 JINR 68 Russian Federation Dubna Member States - 80 JINR, Dubna - 68 CMS members: countries 7 institutions 20 scientists 303 students 32 Associated members: institutions 3 CMS members: countries 7 institutions 20 scientists 303 students 32 Associated members: institutions 3 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 Associated members:  High Temperature Technology Center of Research & Development Institute of Power Engineering, Moscow  Myasishchev Design Bureau, Zhukovsky  Electron, National Research Institute, St. Petersburg Georgia  High Energy Physics Institute, Tbilisi State University, Tbilisi  Institute of Physics, Academy of Science,Tbilisi Ukraine  Institute of Single Crystals of National Academy of Science, Kharkov  National Scientific Center, Kharkov Institute of Physics and Technology, Kharkov  Kharkov State University, Kharkov Uzbekistan  Institute for Nuclear Physics, UAS, Tashkent Dubna Member States Armenia  Yerevan Physics Institute, Yerevan Belarus  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 Bulgaria  Institute for Nuclear Research and Nuclear Energy, BAS, Sofia  University of Sofia, Sofia JINR  Joint Institute for Nuclear Research, Dubna

4 RDMS CMS Project CMS Document 96-85, 1995 RDMS CMS Project CMS Document 96-85, 1995 RDMS Participate in CMS according to the RDMS Project

5 Principles and Strategy of RDMS CMS Main principles:  participation of Institutions in the CMS experiment as independent scientific groups and;  unification of technical and financial contributions and obligations of different Institutions as the joint Collaboration deliverables to experiment. Main aims of the Collaboration strategy:  unification of the efforts of many groups from different institutions and countries;  concentration of efforts at several well defined CMS sub-systems (for example Endcap) and  broad involvement of Industry of participating States Concerning to such participation the three-parties Agreements between Member State, JINR and CERN are very important. Main principles:  participation of Institutions in the CMS experiment as independent scientific groups and;  unification of technical and financial contributions and obligations of different Institutions as the joint Collaboration deliverables to experiment. Main aims of the Collaboration strategy:  unification of the efforts of many groups from different institutions and countries;  concentration of efforts at several well defined CMS sub-systems (for example Endcap) and  broad involvement of Industry of participating States Concerning to such participation the three-parties Agreements between Member State, JINR and CERN are very important.

6 CMS Operations of 2011

CMS Operations pp-collisions 7 TeV of 2010 ( ) : pb -1 delivered by LHC and pb -1 of data collected by CMS. Overall data taking efficiency ~92%. PbPb-collisions 5.5 TeV/nucleon ( ) : 8.38  b -1 delivered by LHC and 7.82  b -1 of data collected by CMS. Overall data taking efficiency ~93%. 7 pp-collisions 7 TeV from : 3.09 fb -1 delivered by LHC and 2.78 fb -1 of data collected by CMS. Overall data taking efficiency ~90%. Excellent performance in coping with more than 6 orders of magnitude increase in instantaneous luminosity from L ≈ cm -2 s -1 up to L ≈ 2.97x10 33 cm -2 s -1 PbPb Run is expected in November-December pp-collisions 7 TeV from : 3.09 fb -1 delivered by LHC and 2.78 fb -1 of data collected by CMS. Overall data taking efficiency ~90%. Excellent performance in coping with more than 6 orders of magnitude increase in instantaneous luminosity from L ≈ cm -2 s -1 up to L ≈ 2.97x10 33 cm -2 s -1 PbPb Run is expected in November-December L ≈ 2.97x10 33 cm -2 s -1 L ≈ cm -2 s -1 L ≈ 1.28x10 33 cm -2 s -1

Sub-detectors Operations and RDMS Obligations In order to be an author of the CMS physics papers, collaborator should pay according to MoU category A and B contribute for data taking and operation (shifts, technical services etc.) - 3 months per author RDMS Responsibility for 2011 is defined by Addendum 3 to Memorandum of Agreement between CMS and RDMS (MoA) (in person*months): ECAL HCALMuonCentral ShiftsTier1Tier2 –RDMS –RDMS-RF –RDMS-DMS operation efficiency of detector systems including detectors of full JINR responsibility – Endcap Hadron Calorimeter (HE) Forward Muon Stations (ME1/1) is very high

JINR Participation in Data Taking 9 In accordance with obligations JINR physicists took part in  Central SX5 in CERN (599 shifts have to be covered by RDMS, among them 158 by JINR and DMS) Detector Control System – 54 % Trigger – 11 % Data Quality Monitoring (including off-line DQM) – 35 % These obligations are covered mainly by “сore” RDMS group at CERN - 5 scientists from RDMS (2 of them from DMS) constantly present at CERN. They are involved actively in operation and detector performance group Viktor Perelygin is RDMS coordinator for central shifts Vladimir Palichik is Convener of Muon CSC Detector Performance Group Olga Kodolova (MSU) is Convener of HCAL Performance Group  In 2011 RDMS must cover about 500 sub-system shifts (~ 60 by JINR and 45 by DMS) In particular for detectors of full JINR responsibility Endcap Hadron Calorimeter (HE) – 9 shifters from JINR, 6 shifters from DMS Forward Muon Stations (ME1/1) – 7 shifters from JINR, 1 shifter from DMS These shifts are taken remotely from JINR Remote Operation Center In accordance with obligations JINR physicists took part in  Central SX5 in CERN (599 shifts have to be covered by RDMS, among them 158 by JINR and DMS) Detector Control System – 54 % Trigger – 11 % Data Quality Monitoring (including off-line DQM) – 35 % These obligations are covered mainly by “сore” RDMS group at CERN - 5 scientists from RDMS (2 of them from DMS) constantly present at CERN. They are involved actively in operation and detector performance group Viktor Perelygin is RDMS coordinator for central shifts Vladimir Palichik is Convener of Muon CSC Detector Performance Group Olga Kodolova (MSU) is Convener of HCAL Performance Group  In 2011 RDMS must cover about 500 sub-system shifts (~ 60 by JINR and 45 by DMS) In particular for detectors of full JINR responsibility Endcap Hadron Calorimeter (HE) – 9 shifters from JINR, 6 shifters from DMS Forward Muon Stations (ME1/1) – 7 shifters from JINR, 1 shifter from DMS These shifts are taken remotely from JINR Remote Operation Center

JINR Participation in Detector Performance Studies 10 During data taking the JINR planed and coordinated participation of the RDMS СMS institutions and JINR specialists in shifts aimed on detector operation and data taking  CMS data taking procedure used to gain operational experience, stability of infrastructure.  The processing and analyses of CMS data used software release destined for 2011 data- taking & grid infrastructure. Combined functionality of HE and ME1/1 was checked Detector and software performance studies were performed in results of fast data analysis for the inner endcap detectors (HE and ME1/1)  spatial resolutions of ME1/1, ME2, ME3 were derived  study of muon track reconstruction efficiency  procedure of alignment correction of inner layers of ME1/1 was performed - layers are shifted relative each other no more than 20 µm. calibration of HE endcap hadron calorimeter was performed with CMS required accuracy ~ 3 % in the azimuthal direction. Procedures of HF detector calibration with physics processes have been developed gamma-jet processes processes with missing transverse energy During data taking the JINR planed and coordinated participation of the RDMS СMS institutions and JINR specialists in shifts aimed on detector operation and data taking  CMS data taking procedure used to gain operational experience, stability of infrastructure.  The processing and analyses of CMS data used software release destined for 2011 data- taking & grid infrastructure. Combined functionality of HE and ME1/1 was checked Detector and software performance studies were performed in results of fast data analysis for the inner endcap detectors (HE and ME1/1)  spatial resolutions of ME1/1, ME2, ME3 were derived  study of muon track reconstruction efficiency  procedure of alignment correction of inner layers of ME1/1 was performed - layers are shifted relative each other no more than 20 µm. calibration of HE endcap hadron calorimeter was performed with CMS required accuracy ~ 3 % in the azimuthal direction. Procedures of HF detector calibration with physics processes have been developed gamma-jet processes processes with missing transverse energy

CSC spatial resolution for all muon stations including the Forward Muon Station ME1/1 of full JINR responsibility was derived from Collisions’11 CSC spatial resolution for all muon stations including the Forward Muon Station ME1/1 of full JINR responsibility was derived from Collisions’11 Example: CSC Spatial Resolution  Spatial resolution values match Muon TDR requirements the mean value of ME1/1 resolution is about 62 µm that is satisfied by requirements of CMS Technical Project for ME1/1 (75 µm)  Resolution values with Collisions’11 are agreed with Collisions’10 and are stable with increasing of luminosity 11 Pt > 2.5 GeV Pt > 5 GeV Pt > 20 GeV Collision s-11 Collision s-10 4e326e324e326e325e31 ME1/1b ME1/ ME1/ ME2/ ME2/ ME3/ ME3/ ME4/ WZ muons Pt > 20GeV MinBias muons Pt > 5GeV

Inner Endcaps including endcap hadron calorimeter HE and Forward Muon Station ME1/1 of full JINR responsibility demonstrated an efficient operation with collision data. HE response to collision muons provided information on relative calibration of cells and detector regions calibration with isolated charged hadrons for eta < 2.5 ParticleFlow corrections derived from MC Inner Endcaps including endcap hadron calorimeter HE and Forward Muon Station ME1/1 of full JINR responsibility demonstrated an efficient operation with collision data. HE response to collision muons provided information on relative calibration of cells and detector regions calibration with isolated charged hadrons for eta < 2.5 ParticleFlow corrections derived from MC Example: HE Calibration and Response Studies Reasonable correlation for energy deposition for HE- and HE+ is observed 12 difference in HE+/- response of 3±0.4%

Example: HCAL Calibration with Physics Processes  jet energy scale calibration to improve the jet reconstruction  gamma + jet events the systematic uncertainty less than RMS of statistical errors which is ~ 3% for 0.1 fb -1  W- jet +jet calibration  HF intercalibration using missing ET minimization in QCD processes to equalize a signal over  13 CMS IN 2011/010 2x10 6 events provides ~ 5 % accuracy CMS IN 2011/001

14 Data processing and analysis

JINR in CMS Physics Analysis JINR group concentrated on few selected physics topics, where JINR physicists already contributed significantly in preparation of CMS physics program Well integrated into the CMS physics program –Search for Higgs bosons (2l2 channel, 4l channel) –Study of Drell-Yan processes in the large invariant dimuons mass region inaccessible at other accelerators –for search of new physics beyond Standard Model (extended gauge models and extra dimensions etc) –Study of jet physics –to extend PDF’s at range of small-x and large-Q 2 and measurement of  s –2 jet production in diffraction processes (single and double pomeron exchange) –Study of pair of gauge bosons (ZZ, WW) –Bose-Einstein correlations of gauge bosons of the same sign –anomalous coupling constants in production of WW , WWZ, WZ , W  Complex of RDMS Grid-computing based on the special RDMS Tier-1 centre at CERN and Tier-2 in Dubna provides efficient participation of JINR team in data taking and physics analysis JINR group concentrated on few selected physics topics, where JINR physicists already contributed significantly in preparation of CMS physics program Well integrated into the CMS physics program –Search for Higgs bosons (2l2 channel, 4l channel) –Study of Drell-Yan processes in the large invariant dimuons mass region inaccessible at other accelerators –for search of new physics beyond Standard Model (extended gauge models and extra dimensions etc) –Study of jet physics –to extend PDF’s at range of small-x and large-Q 2 and measurement of  s –2 jet production in diffraction processes (single and double pomeron exchange) –Study of pair of gauge bosons (ZZ, WW) –Bose-Einstein correlations of gauge bosons of the same sign –anomalous coupling constants in production of WW , WWZ, WZ , W  Complex of RDMS Grid-computing based on the special RDMS Tier-1 centre at CERN and Tier-2 in Dubna provides efficient participation of JINR team in data taking and physics analysis 15

CMS Computing and JINR Tier-2 Activity in ~ 334 TB was transferred to JINR Tier-2 (~270 TB in 2010) usage of disk space is ~ 95% Max transfer rate to Dubna ~ MB/s 20 Gbps networks ~ analysis jobs were successfully completed Current T2_RU_JINR Group Usage: Exotica PAG TB Muon POG TB Local Users: TB Software and T0/Tier1 (including RDMS Tier-1) infrastructure are stable 49 Tier-2s received collision data and 57 Tier-2s participate to simulation 25 % of CPU time and job slots were spent by JINR Tier-2 for CMS tasks (corresponds to 34,1 % RDMS sites) 25 %

17 Physics Results

The CMS Physics Analyses in 2011 In 2011 CMS continued physics analyses with data of 2010 (~ 40 pb-1) and data of 2011 (~ 1.7 fb-1). ~ 80 analyses are completed. The goals are –“rediscovery” Standard Model Physics starting detection of muons up to top-quark observation – looking for new effects of new physics two essentially new effects were observed: ridge-effect in pp-collsions and direct observation of jet quenching in PbPb-collisions more than 40 “excluding” analysis in the new physics field : higgs physics, supersymmetry, extended gauge models, TeV-scale gravity, compositeness etc authors from RDMS of 2175, 16 authors from JINR + 9 from DMS 5 CMS Analyses were prepared by JINR physicists ~ 80 physics papers on collisions data were submitted or published (J. High Energy Phys, Phys. Rev. Lett., Phys. Lett. B, Eur. Phys. J.) Papers 20 papers in final pipeline

JINR in CMS Physics Analysis JINR group is contributed in five CMS Physics Analysis and two CMS Internal Notes: CMS Physics Analyses Notes:  D. Acosta, …, I.Belotelov, A.Lanyov, M. Savina, S. Senkin, S. Shmatov et al. “Search for High-Mass Resonances Decaying to Muon Pairs with Collisions Gathered at √s = 7 TeV with 1.1 fb-1’’, CMS AN-2011/278, CMS PAS EXO Published as CMS Col. Results in arXiv: , accepted by PLB.  A.Ferapontov, G.Landsberg, P.Tsang, V.Konoplianikov, M.Savina, S.Shmatov, “Searches for Microscopic Black Holes Production in pp Collisions at sqrt(s) = 7 TeV with the CMS Detector with 1.1 fb-1”, CMS AN-2011/256, PAS EXO  D. Acosta, …, I.Belotelov, A.Lanyov, M. Savina, S. Senkin, S. Shmatov et al. “Search for High-Mass Resonances Decaying to Muon Pairs with Collisions Gathered at √s = 7 TeV ’’, CMS AN-2011/222  A.Lanyov, I.Belotelov, S.Shmatov et al. “Drell-Yan Differential Cross Section Measurement at 7 TeV in the Muon Channel”, CMS AN-2011/013, CMS-EWK Published as CMS Col. Results in arXiv: , submitted in JHEP  D. Acosta, …, I.Belotelov, A.Lanyov, M. Savina, S. Senkin, S. Shmatov et al., ” Search for High-Mass Resonances Decaying to Muon Pairs with 40 pb -1 of collisions gathered at √s = 7~ TeV”, CMS AN-2010/317. Published as CMS Col. Results in arXiv: , JHEP05 (2011) 093 CMS Internal Notes:  I. Altsybeev, V. Konoplianikov, S. Shmatov, A. Tumasyan, A. Zarubin, “Jet Energy Scale Calibration Using W -> qqbar Process”, CMS IN-2011/010  V. Konoplianikov, S. Shulga, A. Zarubin, ” HF Calorimeter Calibration Using Events with Direct Photons and Jets”, CMS IN-2011/001 JINR group is contributed in five CMS Physics Analysis and two CMS Internal Notes: CMS Physics Analyses Notes:  D. Acosta, …, I.Belotelov, A.Lanyov, M. Savina, S. Senkin, S. Shmatov et al. “Search for High-Mass Resonances Decaying to Muon Pairs with Collisions Gathered at √s = 7 TeV with 1.1 fb-1’’, CMS AN-2011/278, CMS PAS EXO Published as CMS Col. Results in arXiv: , accepted by PLB.  A.Ferapontov, G.Landsberg, P.Tsang, V.Konoplianikov, M.Savina, S.Shmatov, “Searches for Microscopic Black Holes Production in pp Collisions at sqrt(s) = 7 TeV with the CMS Detector with 1.1 fb-1”, CMS AN-2011/256, PAS EXO  D. Acosta, …, I.Belotelov, A.Lanyov, M. Savina, S. Senkin, S. Shmatov et al. “Search for High-Mass Resonances Decaying to Muon Pairs with Collisions Gathered at √s = 7 TeV ’’, CMS AN-2011/222  A.Lanyov, I.Belotelov, S.Shmatov et al. “Drell-Yan Differential Cross Section Measurement at 7 TeV in the Muon Channel”, CMS AN-2011/013, CMS-EWK Published as CMS Col. Results in arXiv: , submitted in JHEP  D. Acosta, …, I.Belotelov, A.Lanyov, M. Savina, S. Senkin, S. Shmatov et al., ” Search for High-Mass Resonances Decaying to Muon Pairs with 40 pb -1 of collisions gathered at √s = 7~ TeV”, CMS AN-2010/317. Published as CMS Col. Results in arXiv: , JHEP05 (2011) 093 CMS Internal Notes:  I. Altsybeev, V. Konoplianikov, S. Shmatov, A. Tumasyan, A. Zarubin, “Jet Energy Scale Calibration Using W -> qqbar Process”, CMS IN-2011/010  V. Konoplianikov, S. Shulga, A. Zarubin, ” HF Calorimeter Calibration Using Events with Direct Photons and Jets”, CMS IN-2011/001 19

Rediscovery of Standard Models in Dimuons JINR is involved in data processing and analysis of di-muon events responsible for development of hi-mass di-muon events selection scheme (skimming) Minsk and Gomel contribute in calculation of DY high- order QCD and EWK corrections JINR is involved in data processing and analysis of di-muon events responsible for development of hi-mass di-muon events selection scheme (skimming) Minsk and Gomel contribute in calculation of DY high- order QCD and EWK corrections 20 4x10 5 Drell-Yan candidates with M > 50 GeV — compatible with SM expectations. 4x10 5 Drell-Yan candidates with M > 50 GeV — compatible with SM expectations. 5 people from JINR take part in this activity 5 people from JINR take part in this activity ~ TeV region: ongoing work CMS-EXO people from JINR CMS-EXO people from JINR

Example: Di-muons 21 Combined limits (  +  - + e+e-) at 95% CL exceed the Tevatron reach JINR contribution: first priority CMS-EXO people from JINR CMS-EXO people from JINR A Z’ with standard-model-like couplings can be excluded below 1940 GeV, the superstring- inspired Z’ below 1620 GeV, and RS Kaluza–Klein gravitons below 1450 (1780) GeV for couplings of 0.05 (0.10),

22 PbPbPbPbPbPb First direct observation of jet quenching in high centrality lead-lead collisions at LHC arXiv: ; CMS-HIN ; CERN-PH-EP arXiv: ; CMS-HIN ; CERN-PH-EP Suppression of Excited Upsilon States The First Heavy Ion Collisions

Observation of Diffraction Events Energy flows: MC tunes PHOJET agrees better with the data (in forward region) СMS PAS FWD Forward jets: good agreement with theory Erevan group contributes in particular observation W and Z bosons as well as high mass dijets in events with a large rapidity gap Erevan group contributes in particular observation W and Z bosons as well as high mass dijets in events with a large rapidity gap СMS PAS FWD СMS PAS FWD-10-06

Example: Microscopic Black Holes The CMS analysis , 35 pb -1 : arXiv: v1, Phys. Lett. B V697 (2011), p. 434 The CMS analysis , 1.09 fb -1 : recent CMS analysis - EXO CMS set limits on the minimum BH mass of TeV 24 3 people from JINR take part in this activity 3 people from JINR take part in this activity

The First Higgs Searching 25 DMS (Dubna and Ukraine) participates in 2l2 (analysis) and 4l (reconstruction) DMS (Dubna and Ukraine) participates in 2l2 (analysis) and 4l (reconstruction) The CMS search for the Higgs boson is being carried out using a range of decay products: H → , , bbar, WW → 2l2, ZZ → 4l, ZZ → 2l2, ZZ → 2l2q The CMS analysis excludes, with a confidence level (C.L.) of 95%, the existence of a Standard Model Higgs boson in three Higgs mass ranges: GeV, GeV and GeV H  WW  2l2 H   CMS PAS HIG

26 CMS upgrades

LHC Luminosity Scenario – High Lumi LHC (High Luminosity (HL-LHC) Chamonix 2011) need to be able to integrate ~300 fb -1 per year (1 fb -1 per day)  peak lumi of Hz/cm 2 the goal is to achieve 3000/fb – High Lumi LHC (High Luminosity (HL-LHC) Chamonix 2011) need to be able to integrate ~300 fb -1 per year (1 fb -1 per day)  peak lumi of Hz/cm 2 the goal is to achieve 3000/fb few fb -1 is delivered Phase 2 ~300 fb -1 27

Current LHC shutdown schedule LS1 – Long Shutdown 1, currently scheduled to start November - December 2012 and last 18 months. LS2 - Long Shutdown 2, currently scheduled to start December 2018 and last 12 months. TS - Intermediate extended winter technical stop, currently scheduled to start two years into the run period between LS1 and LS2, thus starting December 2016 and lasting up to 6 months. LS1LS2TS

CMS Priority – future Upgrade strategy Important works initiated by JINR for future strategy –CMS Management Workshop on Upgrade Strategy in Dubna February 21-22, 2011 with goals to clarify RDMS area of interest to start discussion on the future CMS strategy –Workshop generated considerable interest in CMS –Results were referred on numerous meetings during the March CMS Week Discussion continued at –Upgrade workshop at CERN in March –Practical issues were thoroughly discussed Discussion continued at the XV RDMS Conference –Key CMS people presented talks on future Physics and Detectors Will be continued next year in Alushta, May 2012

RDMS CMS CB & EC, CERN, July 1, RDMS expected contribution in red LS1 Begin Installing forward muon systems  Dubna ME1/1 HO SiPMs (Hadronic Calorimeter Tail Catcher) HF PMTs (Forward Hadron Calorimeter eta 3-5) Pixel Luminosity Telescope LS2 Complete forward muon systems upgrade  Dubna ME1/1 Install new beampipe Install new pixel detector Complete Installing HB/HE SiPM and electronics  Dubna HE Install new trigger system LS3 Install new tracking system Major consolidation/replacement of electronics systems Including potentially ECAL electronics Calorimeter Endcaps (subject of a task force)  Dubna DAQ system upgrade RDMS expected contribution to Upgrade

31 CMS Upgrade Technical Proposal TP covers LS1-2 through 2020 –Participation in sub-systems according MoU institute responsibility –Total cost preliminary estimated –Contribution scale proportional to number of PhDs –For Dubna is ~ 1 MCHF in total: Common fund in cash ~ 100 kCHF ME1/1 ~ 570 kCHF HE ~ 330 kCHF –Preliminary near future profile for Dubna – 150 kCHF, – 250 kCHF LS3 future upgrade strategy – new project

32 CMS Upgrade Technical Proposal ME1/1 recover trigger up to eta=2.4 –3 cards instead of 1 ORed in bottom CSC part minimize dead time, removes rate worries –replace ADC/SCA with flash ADC, digital storage readout robustness –optical readout instead of 50-pin scewclear cables –Joint US-RDMS project LV and interfaces (Dubna, Minsk) Be ready with electronics by 2013 –Dubna, Minsk responsibility to install new electronics HE Increase dynamic range, rate capability, sub-ns timing, muon ID –SiPM instead of HPD Update longitudinal segmentation to increase Particle Flow capability and 1-level HW trigger –With new electronics Optimize ECAL/HCAL interface –Dubna and RDMS responsibility to install new phototransducers and electronics Access to inner endcap require: –Integration development and full opening of the CMS detector –Strong support of engineering and technical coordination team Require detailed Beam Tests –to measure performance in extreme conditions to understand compatibility with future

Summary JINR participation in CMS is very successful - JINR physicists are involved in whole CMS chain from data taking (shifts) and to final data analysis JINR GRID Computing Facilities based on the special RDMS Tier-1 centre at CERN and Tier-2 in Dubna provide fast access to data and processing. JINR first physics results will be summarized –Annual RDMS CMS Collaboration Conferences –Joint RDMS Seminar “Physics at LHC ” –other international forums Long Shutdown of is focused on completion/optimization of existing CMS for LHC design lumi. (up to Hz/cm2) –JINR participates in these works in the frameworks of responsibility in construction of inner endcap detectors (HE and ME1/1) High Luminosity LHC would allow to extend significantly the LHC physics reach –to exploit fully its potential inner/forward parts of detectors must be changed/hardened/upgraded Details of CMS Upgrade Scenarios are under discussions 33

34 Back -up

Example: right-handed W and heavy neutrino searching For models with exact left-right symmetry (the same coupling in the left and right sectors) CMS exclude the region in the two-dimensional parameter space that extends to (MWR, MN ) = (1700 GeV, 600 GeV). CMS EXO INR group activity

CMS observed all well-known before SM particles : leptons, photons, resonances, W and Z bosons CMS performed precise and complete EWK measurements CMS studies jet processes and measured firstly at LHC top-quark cross-section CMS observed all well-known before SM particles : leptons, photons, resonances, W and Z bosons CMS performed precise and complete EWK measurements CMS studies jet processes and measured firstly at LHC top-quark cross-section Rediscovery of Standard Models 36 JINR participation CERN-PH-EP CMS-TOP M top =158.4±1.8(syst.+stat.) ±6(lumi.)GeV/c 2