1. Sergei Shmatov, Prospects of Heavy Di-muons Physics at High Luminosity LHC, RDMS2011, Alushta, 26 May 20111 Prospects of Heavy Dimuons Physics at High Luminosity LHC Sergei Shmatov Joint Institute for Nuclear Research, Dubna  What do we learn with dimuons?  Recent CMS Results  Motivations for HL LHC  HL LHC Requirements for Detectors  HL LHC Discovery Potential  EGM, ADD, RS1, TeV-1  Summary

2. What Do We Learn with Dimuons?  Standard Model benchmark channel  x-sections in new energy region  PDF constrains  forward-backward asymmetry and sin 2  W  Searching for New Physics  Extended gauge models (many models inspired by GUT’s and left- right symmetric models)  Extra Dimensions  Large flat Extra-Dimensions (ADD model): multiple light graviton states  Randall-Sundrum with two branes in curved bulk space: heavy resonance states GKK  TeV -1 Extra dimension Model with fermions are localized at the same (opposite) orbifold point: KK resonance states of Z-bosons  Compositeness  Standard Model benchmark channel  x-sections in new energy region  PDF constrains  forward-backward asymmetry and sin 2  W  Searching for New Physics  Extended gauge models (many models inspired by GUT’s and left- right symmetric models)  Extra Dimensions  Large flat Extra-Dimensions (ADD model): multiple light graviton states  Randall-Sundrum with two branes in curved bulk space: heavy resonance states GKK  TeV -1 Extra dimension Model with fermions are localized at the same (opposite) orbifold point: KK resonance states of Z-bosons  Compositeness Sergei Shmatov, Prospects of Heavy Di-muons Physics at High Luminosity LHC, RDMS2011, Alushta, 26 May 20112

3. Recent CMS Performance To Measure Dimuons and Results (details were discussed in talk by Alexander Lanyov) Sergei Shmatov, Prospects of Heavy Di-muons Physics at High Luminosity LHC, RDMS2011, Alushta, 26 May 20113

4. Muon Trigger and Reconstruction Performance L1_SingleMu7 HLT_Mu15 CMS AN-10-317 Cosmic-ray muon data Trigger paths for 2x10 32 Hz/cm 2 : Sergei Shmatov, Prospects of Heavy Di-muons Physics at High Luminosity LHC, RDMS2011, Alushta, 26 May 20114 CMS CR-2011/060 (2010 data)

5. Re-Discovery of Standard Models in Dimuons 10 5 Drell-Yan candidates with M > 50 GeV For M > 800 GeV expectation from Drell- Yan MC is 0.7 events. CMS detected 1 event in μ+μ− channel — compatible with SM expectations. 10 5 Drell-Yan candidates with M > 50 GeV For M > 800 GeV expectation from Drell- Yan MC is 0.7 events. CMS detected 1 event in μ+μ− channel — compatible with SM expectations. ~ TeV Sergei Shmatov, Prospects of Heavy Di-muons Physics at High Luminosity LHC, RDMS2011, Alushta, 26 May 20115 2011 data

6. New Limits for New Physics Mass limits with 95 % CL arXiv:1103.0981 ; CMS-EXO-10-013 arXiv:1103.0981 ; CMS-EXO-10-013 Sergei Shmatov, Prospects of Heavy Di-muons Physics at High Luminosity LHC, RDMS2011, Alushta, 26 May 20116

7. High Luminosity LHC Expectations Sergei Shmatov, Prospects of Heavy Di-muons Physics at High Luminosity LHC, RDMS2011, Alushta, 26 May 20117

8. LHC Luminosity Scenario 2020-2030 – 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 10 35 Hz/cm 2 the goal is to achieve 3000/fb in phase 2 2020-2030 – 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 10 35 Hz/cm 2 the goal is to achieve 3000/fb in phase 2 Mike Lamont, LHCC upgrade session, 16/02/10 1 fb -1 has to be delivered for June-July 2011 3x10 33 Hz/cm 2 at 7 TeV Phase 2 ~300 fb -1 Sergei Shmatov, Prospects of Heavy Di-muons Physics at High Luminosity LHC, RDMS2011, Alushta, 26 May 20118

9. HL LHC Motivations for Di-muons Assume discovery of new phenomena at the LHC :  study of some properties measured at LHC  increase precision of resonance masses, partial width, spin and coupling constants  more precisely measurements of forward-backward asymmetry to distinguish different models Extend the reach for physics beyond the Standard Model:  Z’, q *, KK modes of graviton and gauge bosons  non-resonance signals from ADD and compositeness Assume discovery of new phenomena at the LHC :  study of some properties measured at LHC  increase precision of resonance masses, partial width, spin and coupling constants  more precisely measurements of forward-backward asymmetry to distinguish different models Extend the reach for physics beyond the Standard Model:  Z’, q *, KK modes of graviton and gauge bosons  non-resonance signals from ADD and compositeness Sergei Shmatov, Prospects of Heavy Di-muons Physics at High Luminosity LHC, RDMS2011, Alushta, 26 May 20119

10. General Detector Requirements TeV muon in CMS muon stations new algorithms (or improvements) new trigger paths for high energy particles and higher PU (isolation!!!) better understanding systematic effects new algorithms (or improvements) new trigger paths for high energy particles and higher PU (isolation!!!) better understanding systematic effects Sergei Shmatov, Prospects of Heavy Di-muons Physics at High Luminosity LHC, RDMS2011, Alushta, 26 May 201110  tracker is a crucial point  punch-trough, bremsstrahlung and EM showering lead to increasing of contaminated events in muon stations higher occupancy problems with isolation  tracker is a crucial point  punch-trough, bremsstrahlung and EM showering lead to increasing of contaminated events in muon stations higher occupancy problems with isolation We need to keep detector performance for high-luminosity similar to present ones to maintain momentum resolution and efficiency We need to keep detector performance for high-luminosity similar to present ones to maintain momentum resolution and efficiency

11. Drell-Yan Measurements Available masses ~ 3-3.5 TeV Detector systematic effects are small wrt. to statistics at 300 fb -1  need more data !!! A FB stat. syst. CMS PhTDR, V.II CMS AN 2007/003 Sergei Shmatov, Prospects of Heavy Di-muons Physics at High Luminosity LHC, RDMS2011, Alushta, 26 May 201111 see Ilya Gorbunov’s talk on Tuesday

12. Spin-1 Neutral Resonances : Extended Gauge Models LHC SLHC HL LHC Mass reach: ~ 6.5 TeV/c 2 CMS PhTDR, V.II 10 fb -1 models can be distinguished with A FB from each for resonances with up masses ~ 1 TeV 400 fb -1 Z’ models can be distinguished up to Z’ masses between 2.0-2.7 10 fb -1 models can be distinguished with A FB from each for resonances with up masses ~ 1 TeV 400 fb -1 Z’ models can be distinguished up to Z’ masses between 2.0-2.7 Mass reach for the LHC case (100 fb -1 /year): not better 4.9 TeV/c 2 for most optimistic model Mass reach for the HL LHC case (above 300 fb -1 /year: ~ up to 6 TeV/c 2, Mass reach for the LHC case (100 fb -1 /year): not better 4.9 TeV/c 2 for most optimistic model Mass reach for the HL LHC case (above 300 fb -1 /year: ~ up to 6 TeV/c 2, CMS NOTE 2005/022 Sergei Shmatov, Prospects of Heavy Di-muons Physics at High Luminosity LHC, RDMS2011, Alushta, 26 May 201112

13. Spin-1 Neutral Resonances: TeV-1 Extra Dimensions 5  discovery limit of ZKK Production (M1 model) LHC LHC Mass reach: ~ 6.0 TeV/c 2 3000 fb -1 HL LHC Mass reach: ~ 7.7 TeV/c 2 S/(√B)>5 for M ll >M cut CMS PhTDR, V.II Sergei Shmatov, Prospects of Heavy Di-muons Physics at High Luminosity LHC, RDMS2011, Alushta, 26 May 201113 TeV scale ED’s: KK excitations of the Z

14. Spin-2 Neutral Resonances: RS1 Discovery Limit Di-muon states G1μ+μ-G1μ+μ-G1μ+μ-G1μ+μ- c=0.1 100 fb -1 c=0.01 100 fb -1 5D curve space with ADS metric: 3(brane)+1(extra)+time! 14 10 fb -1 1000 fb -1 HL LHC vs LHC, 95% CL Sergei Shmatov, Prospects of Heavy Di-muons Physics at High Luminosity LHC, RDMS2011, Alushta, 26 May 201114 LHC  HL LHC: Increase in reach up to 1.4 TeV CMS PhTDR, V.II

15. Spin-1/Spin-2 Discrimination Z vs RS1-graviton Sergei Shmatov, Prospects of Heavy Di-muons Physics at High Luminosity LHC, RDMS2011, Alushta, 26 May 201115 CMS PhTDR, V.II

16. 1 fb -1 : 3.9-5.5 ТеV for n=6..3 10 fb -1 : 4.8-7.2 ТеV for n=6..3 100 fb -1 : 5.7-8.3 ТеV for n=6..3 300 fb -1 : 5.9-8.8 ТеV for n=6..3 Confidence limits for LHC Virtual graviton production Confidence limits for HL LHC (3000 fb -1 ): 7 – 12 TeV ADD Discovery Limit Sergei Shmatov, Prospects of Heavy Di-muons Physics at High Luminosity LHC, RDMS2011, Alushta, 26 May 201116 CMS PhTDR, V.II

17.  CMS shows good reconstruction performance measurements of dimuons: Data vs MC, efficiency, resolution  Expected dimuon physics within and beyond the SM for LHC Phase (up to 300 fb -1 ) is a very promising: discovery potential of CMS allows to test predictions of different models (SM, RS1, ADD, Z’) in the wide range of the model parameters  High Luminosity LHC (10 35 Hz/cm 2 ) can allow to study in details properties of new physics objects (masses, partial width, spin, coupling constants) if they will be discovered to extend the reach for New Physics – gain in reach (for 1000 fb -1 : up to 2 TeV for mass of resonances (~25-50% ) up to 4 TeV for M D (~ 50 % )  To exploit fully CMS potential the tracker and muon trigger must be changed/hardened/upgraded to maintain performances similar to present ones Sergei Shmatov, Prospects of Heavy Di-muons Physics at High Luminosity LHC, RDMS2011, Alushta, 26 May 201117 Summary

18. Backup slides

19. Detectors: General Considerations

20. Sergei Shmatov, Prospects of Heavy Di-muons Physics at High Luminosity LHC, RDMS2011, Alushta, 26 May 201120 Summary of Physics Reach

22. 17 Oct 2003 Lankford – Trigger & Data Acquisition Inclusive Triggers: samples & rates LHCSLHC SelectionThresholdRateThresholdRate (GeV)(kHz)(GeV)(kHz) inclusive single muon2043025 inclusive, isolated e/gamma30225520 † muon pair6120few isolated e/gamma pair205305 inclusive jet2900.2351 jet + missing ET100+1000.5150+801-2 inclusive ET 150<1 multi-jet triggersvarious0.4variouslow Note that inclusive e/γ trigger dominates rate. ( † Added degradation from pile-up not included above)

23. Sergei Shmatov, Prospects of Heavy Di-muons Physics at high luminosity, RDMS2011, Alushta, 26 May 201123 Physics Objects: Di-muons @ 7 TeV

24. TeV-1 Extra Dimension Model I. Antoniadis, PLB246 377 (1990)  Multi-dimensional space with orbifolding (5D in the simplest case, n=1)  The fundamental scale is not planckian: M D ~ TeV, EWPT M D > 4TeV  Fundamental fermions can be localized at the same (M1) or opposite (M2) points of orbifold  destructive or constructive interference with SM model I. Antoniadis, PLB246 377 (1990)  Multi-dimensional space with orbifolding (5D in the simplest case, n=1)  The fundamental scale is not planckian: M D ~ TeV, EWPT M D > 4TeV  Fundamental fermions can be localized at the same (M1) or opposite (M2) points of orbifold  destructive or constructive interference with SM model G. Azuelos, G. Polesello EPJ Direct 10.1140 (2004)  two electrons in the final state  Bckg: Drell-Yan/ZZ/WW/ ZW/ttabr  PYTHIA/PHOTOS with CTEQ61M  LO + K=1.30 for signals, LO + K-factors for bckg.  Full (GEANT-4) simulation/reco  L1 + HLT(riger) cuts  Theoretical uncert.  Low luminosities pile-up

25. Non-resonant signals: ADD Model N.Arkani-Hamed, S.Dimopoulos, G.Dvali (ADD scenario), Phys.Lett. B429(1998), Nuc.Phys.B544(1999)  The real World is multi-dimensional: n flat - Euclidian - extra spatial dimensions, the maximal total number of dimensions is 3(our) + 6(extra)=9  The fundamental scale is not planckian: M D ~ TeV   We (all of SM forces) live on 3D brane (there is another “parallel” hidden World)  Only gravitons are multi-dimensional N.Arkani-Hamed, S.Dimopoulos, G.Dvali (ADD scenario), Phys.Lett. B429(1998), Nuc.Phys.B544(1999)  The real World is multi-dimensional: n flat - Euclidian - extra spatial dimensions, the maximal total number of dimensions is 3(our) + 6(extra)=9  The fundamental scale is not planckian: M D ~ TeV   We (all of SM forces) live on 3D brane (there is another “parallel” hidden World)  Only gravitons are multi-dimensional A “Parallel” World Our World Excess above di-lepton continuum! Graviton contributions to SM processes: d=2 d=4 SM 25Sergei Shmatov, Study of Heavy Di-muons with CMS, RDMS2010, Varna, 09 September 2010

26.  from measurements of the gravitational potential n = 1 excluded by solar system (verification of the Newton’s law up to R < 0.19 mm)  from supernova SN1987 (graviton emission speeds up the supernova cooling): M D > 30 TeV (n = 2), 4 TeV (n = 3)  from energy spectrum of the diffuse gamma-ray background (CDG) due to G KK  γγ: M D > 110 TeV (n = 2), 5 TeV (n = 3) http://www-cdf.fnal.gov/physics/exotic/r2a/20071213.gammamet/LonelyPhotons/photonmet.html PRL 101:181602 (2008)PRL 97:171802 (2006) ADD Model: experimental exclusions 26Sergei Shmatov, Study of Heavy Di-muons with CMS, RDMS2010, Varna, 09 September 2010

27. New resonances: RS1/TeV -1 Models L.Randall, R.Sundrum (RS1 scenario), PRL83 3370 (1999) L.Randall, R.Sundrum (RS1 scenario), PRL83 3370 (1999) 5D curve space with AdS 5 slice: two 3(brane)+1(extra)+time! Signals: Narrow, high-mass resonance states in di-lepton, di-jet, di-photon events: Signals: Narrow, high-mass resonance states in di-lepton, di-jet, di-photon events: I. Antoniadis, PLB246 377 (1990): TeV -1  Multi-dimensional space with orbifolding (5D in the simplest case, n=1)  The fundamental scale is not planckian: M D ~ TeV  Gauge bosons can travel in the bulk I. Antoniadis, PLB246 377 (1990): TeV -1  Multi-dimensional space with orbifolding (5D in the simplest case, n=1)  The fundamental scale is not planckian: M D ~ TeV  Gauge bosons can travel in the bulk 27Sergei Shmatov, Study of Heavy Di-muons with CMS, RDMS2010, Varna, 09 September 2010

28. CDF: PRL 102, 091805 (2009) http://www-cdf.fnal.gov/physics/exotic/r2a/20081021.dimuon_resonance/ 2.3 fb −1 D0: D0note 5195-CONF 1.1 fb −1 New resonances: experimental exclusions 28Sergei Shmatov, Study of Heavy Di-muons with CMS, RDMS2010, Varna, 09 September 2010

29. Features of high energy muons Features of a muon of high energy (a few hundred GeV - TeV)  low curvature of muon trajectory  limited pT estimation precision  bremsstrahlung and EM showering  contaminated events, problems with isolation  precision is sensitive extremally to detector misalignment Features of a muon of high energy (a few hundred GeV - TeV)  low curvature of muon trajectory  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) 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) 29Sergei Shmatov, Study of Heavy Di-muons with CMS, RDMS2010, Varna, 09 September 2010

30. 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  -beams2004 Beam test on  -beams GEANT4-based SW is described experimental data well enough Electromagnetic secondaries Punch-through 30Sergei Shmatov, Study of Heavy Di-muons with CMS, RDMS2010, Varna, 09 September 2010

31. 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 (Q 2 ) Detector Misalignment B-filed Pile-up Trigger and reconstruction Shape of background DY Expected Uncertainties: Drell-Yan Example smearing (long-term data) Statistical errors are higher than detector ones 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 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 Drell-Yan Theory-related uncertainties are dominant!!! Need to be improved!!! 31Sergei Shmatov, Study of Heavy Di-muons with CMS, RDMS2010, Varna, 09 September 2010

32. Muon Propagation