Searches for Physics Beyond the Standard Model (Exotica) in pp collisions at 7 TeV at the CMS Experiment Sergei Shmatov Joint Institute for Nuclear Research, Dubna on behalf of CMS Collaboration The NPD RAS Conference "The Physics of Fundamental Interactions” Nov 2011, ITEP, Moscow

Sergei Shmatov, Searches for Physics Beyond the Standard Model at the CMS Experiment, NPD RAS Conference 2011, Moscow 2 Exotica at LHC is Physics beyond SM/SUSY/Higgs  Heavy Resonances (extended gauge models, extra dimensions, technicolor)  dileptons, dijets, diphotons, ttbar, WZ  Non-Resonant Signals  Mono-particle + Missing ET (extended gauge models, extra dimensions, technicolor)  mono-jet + MET, mono-photon + MET, mono-lepton + MET  Black Holes (extra dimensions)  high-multiplicity events  Leptoquarks  4 th Generation  lepton + jet, dilepton CMS Exotica Public Physics Results OUTLINE

Total weight t Overall diameter m Overall length 21.6 m Magnetic field 3.8 Tesla Large general-purpose particle physics detector Compact Muon Solenoid Detector subsystems are designed to measure: the energy and momentum of photons, electrons, muons, jets, missing E T up to a few TeV Sergei Shmatov, Searches for Physics Beyond the Standard Model at the CMS Experiment, NPD RAS Conference 2011, Moscow 3 LHC provided 5.7 fb -1 at a 7 TeV center-of-mass energy for this year 5.2 fb -1 was recorded by CMS The results covered by this talk were produced with ~ 1fb -1 LHC provided 5.7 fb -1 at a 7 TeV center-of-mass energy for this year 5.2 fb -1 was recorded by CMS The results covered by this talk were produced with ~ 1fb -1

Heavy Resonances  Extra gauge bosons predicted by extended gauge models (left-right symmetric models and GUT-inspired models)  Kaluza-Klein graviton excitations arising in extra dimensions models with curved bulk space (Randall-Sundrum model)  Small extra spatial dimensions, Curved bulk space (AdS 5 - slice)  Well separated graviton mass spectrum  Kaluza-Klein excitations of SM gauge bosons in large flat extra-dimensions (TeV-1 Models)  Bosons could also propagate in the bulk  Fermions are localized at the same (opposite) orbifold point: destructive (constructive) interference between SM gauge bosons and KK excitations  Technicolor Signals: di-leptons/di-jets/di-photons resonance states in high (~TeV) invariant mass range  new particles would be observed as a bump, excess in the mass spectrum Excellent momentum and energy resolutions are required !! Sergei Shmatov, Searches for Physics Beyond the Standard Model at the CMS Experiment, NPD RAS Conference 2011, Moscow 4

Dileptons: Spectra Sergei Shmatov, Searches for Physics Beyond the Standard Model at the CMS Experiment, NPD RAS Conference 2011, Moscow 5 CMS PAS EXO New Physics (Z/Z KK /G KK ) contributions to SM processes: Part. of Russian Inst.: JINR

Dileptons: Limits 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) Sergei Shmatov, Searches for Physics Beyond the Standard Model at the CMS Experiment, NPD RAS Conference 2011, Moscow 6 CMS PAS EXO Part. of Russian Inst.: JINR

Highest Dilepton Mass at CMS Sergei Shmatov, Searches for Physics Beyond the Standard Model at the CMS Experiment, NPD RAS Conference 2011, Moscow 7 CMS PAS EXO Dielectron, M = 971 GeV Dimuon, M = 1203 GeV Part. of Russian Inst.: JINR

Diphotons RS Kaluza–Klein gravitons below 1.7 TeV for couplings of 0.10 Sergei Shmatov, Searches for Physics Beyond the Standard Model at the CMS Experiment, NPD RAS Conference 2011, Moscow 8 CMS PAS EXO

Dijets Sergei Shmatov, Searches for Physics Beyond the Standard Model at the CMS Experiment, NPD RAS Conference 2011, Moscow 9 CMS PAS EXO arXiv: Phys. Lett. B, 3 (704) 2011, 123

Highest Dijets Mass at CMS Sergei Shmatov, Searches for Physics Beyond the Standard Model at the CMS Experiment, NPD RAS Conference 2011, Moscow 10 CMS PAS EXO

ttbar Sergei Shmatov, Searches for Physics Beyond the Standard Model at the CMS Experiment, NPD RAS Conference 2011, Moscow 11 CMS PAS EXO CMS PAS EXO Sub-picobarn limits on  (Z  ttbar in the all-hadronic channel) for Z heavier than 1.1 TeV CMS excludes KK gluon with mass of TeV Sub-picobarn limits on  (Z  ttbar  (W+b) (W-bbar)) for Z heavier than 1.35 TeV CMS excludes topcolor Z in mass regions GeV andf GeV

WZ Resonances Sergei Shmatov, Searches for Physics Beyond the Standard Model at the CMS Experiment, NPD RAS Conference 2011, Moscow 12 CMS PAS EXO

(Lepton-Lepton) + (Jet-Jet) Resonance Sergei Shmatov, Searches for Physics Beyond the Standard Model at the CMS Experiment, NPD RAS Conference 2011, Moscow 13 W R and heavy neutrino from LR models CMS PAS EXO for details see talk by N.V. Krasnikov Part. of Russian Inst.: INR

Non-Resonant Signals  ADD-graviton contribution in the SM processes (Drell-Yan, diphotons productions)  Compositeness Signals: excess in di-particle spectrum Sergei Shmatov, Searches for Physics Beyond the Standard Model at the CMS Experiment, NPD RAS Conference 2011, Moscow 14 d=2 d=4 SM

Exclusion Limits for ADD Sergei Shmatov, Searches for Physics Beyond the Standard Model at the CMS Experiment, NPD RAS Conference 2011, Moscow 15 DimuonsDiphotons CMS PAS EXO CMS PAS EXO

Mono-Particle + MET  Extra gauge bosons (W) predicted by extended gauge models (left-right symmetric models and GUT-inspired models)  Kaluza-Klein graviton emission in large flat extra-dimensions (ADD model)  Technicolor Signals: lepton + MET, photon +MET, jet +MET Sergei Shmatov, Searches for Physics Beyond the Standard Model at the CMS Experiment, NPD RAS Conference 2011, Moscow 16

Lepton + MET Signature is W-like at high mas Background is SM W production! W’ with SM-like coupling is exluded with M W’ = 2.27 TeV Sergei Shmatov, Searches for Physics Beyond the Standard Model at the CMS Experiment, NPD RAS Conference 2011, Moscow 17 CMS PAS EXO

Photon + MET Sergei Shmatov, Searches for Physics Beyond the Standard Model at the CMS Experiment, NPD RAS Conference 2011, Moscow 18 CMS PAS EXO CMS extends the current limits to be M D > TeV for n = 2 - 6

Jet + MET Sergei Shmatov, Searches for Physics Beyond the Standard Model at the CMS Experiment, NPD RAS Conference 2011, Moscow 19 CMS PAS EXO

Black Holes Sergei Shmatov, Searches for Physics Beyond the Standard Model at the CMS Experiment, NPD RAS Conference 2011, Moscow 20 for details see talk by M.V. Savina

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 Sergei Shmatov, Searches for Physics Beyond the Standard Model at the CMS Experiment, NPD RAS Conference 2011, Moscow 21 Part. of Russian Inst.: JINR

Leptoquarks Sergei Shmatov, Searches for Physics Beyond the Standard Model at the CMS Experiment, NPD RAS Conference 2011, Moscow 22 An LQ carries color, has fractional electric charge, can have spin 0 or spin 1, and couples to a lepton and a quark with coupling strength β! An LQ would decay to a charged lepton and a quark, with an unknown branching fraction λ, or a neutrino and a quark, with branching fraction 1- β

Leptoquarks Sergei Shmatov, Searches for Physics Beyond the Standard Model at the CMS Experiment, NPD RAS Conference 2011, Moscow 23 CERN-PH-EP S T is the sum of the magnitudes of the p T of the two leading electrons and two leading jets. A 95% C.L. lower limit is set on the mass of a first-generation scalar leptoquark at 384 GeV

4 th Generation Sergei Shmatov, Searches for Physics Beyond the Standard Model at the CMS Experiment, NPD RAS Conference 2011, Moscow 24 Recently renewed interest, since it has been shown that the EWK bounds are less constraining for a non-degenerate fourth generation! With a fourth generation, indirect bounds on the Higgs boson mass can be relaxed, and an additional generation of quarks may possess enough intrinsic matter and anti-matter asymmetry to be relevant for the baryon asymmetry of the Universe!

Sergei Shmatov, Searches for Physics Beyond the Standard Model at the CMS Experiment, NPD RAS Conference 2011, Moscow 25 b  t + W CMS PAS EXO M b > 495 GeV

Sergei Shmatov, Searches for Physics Beyond the Standard Model at the CMS Experiment, NPD RAS Conference 2011, Moscow 26 Searching of t(1) M t > 417 GeV CMS PAS EXO CMS PAS EXO M t > 422 GeV

Sergei Shmatov, Searches for Physics Beyond the Standard Model at the CMS Experiment, NPD RAS Conference 2011, Moscow 27 Searching of t(2) CMS PAS EXO M t > 450 GeV

CMS Exotica Summary Sergei Shmatov, Searches for Physics Beyond the Standard Model at the CMS Experiment, NPD RAS Conference 2011, Moscow 28

Conclusions and Outlook  CMS demonstrates excellent performance TeV leptons, photons, jets Mono-particle + associated missing energy Complex signatures  Physics analysis with ~ 1 fb -1 set stringent limits to many benchmarks models (more than 20 papers and public Physics Analysis Notes)  Unfortunately, no evident deviations from Standard Model have been seen so far  ~ 5 fb-1 are in analysis Sergei Shmatov, Searches for Physics Beyond the Standard Model at the CMS Experiment, NPD RAS Conference 2011, Moscow 29