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Non SUSY Searches at the TEVATRON Run II

Overview of searches for Leptoquarks, Leptons or Quarks Compositeness, W', Z', Randall-Sundrum Gravitons, and Large Extra Dimensions at the TEVATRON Run II.

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Non SUSY Searches at the TEVATRON Run II

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  1. Non SUSY Searches at the TEVATRON Run II Steve Muanza IPN Lyon, CNRS-IN2P3 on Behalf of the D0 & CDF Collaborations • OUTLINE • INTRODUCTION • FERMION SUB-STRUCTURE • Search for Leptoquarks • Search for Leptons or Quarks Compositeness • EXTENDED GAUGE SYMMETRIES • Search for W’ • Search for Z’ • EXTENDED NUMBER OF SPACE DIMENSIONS • Search for Randall-Sundrum gravitons • Search for Large Extra Dimensions • CONCLUSIONS • PROSPECTS FOR THE RUN II B Moriond QCD 2007 20 March 2007

  2. NOTICE • This talk is a NON EXHAUSTIVE overview of the numerous • searches for Exotic extensions of the SM at the TEVATRON Run II • Each analysis status: • Prel.: preliminary • Acc.: accepted for publication • Pub.: already published • is mentioned in the last column of the tables. • All exclusion limits are at the 95% CL • Not covered: • Technicolor • Littel Higgs • Model independent searches • CHAMPS • Monopoles,… Moriond QCD 2007 20 March 2007

  3. I. INTRODUCTION Technicolor Extending the SM Compositeness techniparticles Gauginos / fermionsTC condensation nR 4th generation fermions, excited fermions, LQ,… GUT • The Standard Model: • Gauge group: SU(3)c x SU(2)L x U(1)Y • EWSB: the Higgs mechanism • Flavor symmetry: 3 generations of q & l • Space-Time symmetry: Poincaré group • Number of space D: 3 SU(5), SO(10), E6, E8, … LQ, Z’, W’, … Little Higgs SUSY T, H triplet, W/Z/A,… Higgs bosons sparticles M-Theory S-Strings N SU(2)L x U(1)Y along the 4th space D Extra D (3+1)-D [SU(2)L x U(1)Y]N Large, warped, TeV-1, UED,… Moriond QCD 2007 20 March 2007

  4. II. FERMIONS SUB-STRUCTURE 1. Search for LeptoQuarks Compositeness GUT SM DECAY MODES: Main search channels at the TEVATRON: (0<i<4: generation index) • PRODUCTION @ HADRON COLLIDERS: • q+qbar  LQ+LQbar • g+g  LQ+LQbar • q+g  LQ+l (smaller s) • s independent of l for SLQ • (except for single LQ) • =>s(aS,MSLQ) • s depends on 2 parameters kG and lG • for VLQ • =>s(aS,MVLQ, kG,lG) Moriond QCD 2007 20 March 2007

  5. II. FERMIONS SUB-STRUCTURE 1. Search for LeptoQuarks D0 CDF Note • most results concern scalar LQ (simply denoted LQ) • just one result concerns vector LQ (denoted VLQ) Detailed Moriond QCD 2007 20 March 2007

  6. Search for SLQ2 • D0: • Analysis: LQ2 pairs mn+jets • Triggers: single m • Data sample: 1050 pb-1 • Instr. background: QCD from data • Event selection: • exactly 1 hard & isolated m • 2 hard jets and large mET • large mT(m, mET) and large HT • Main BKGD: W(mn)+jets • Uncert.: int. L, e(m), B norm., … • Results: • Hyp: 2b(1-b)=0.5 • Signal window: |mLQ +/-100 GeV| • Nobs= 6 • Nexp(B)=6.4+/-0.7 +/-0.8 • e(S)=7.9+/-0.1+/-0.7 • (mSLQ2 =200 GeV) Reco’d mSLQ2 mSLQ2>214 GeV Moriond QCD 2007 20 March 2007

  7. Searches for VLQ3 pairs • CDF: • Analysis: • VLQ3 pairs 2t+2b • 1t  had., 1t  e/m • Data sample: 322 pb-1 • Triggers: • lepton+tracks • +1 hard e/m • +1 t-had • Event selection: • very large HT: • S pT(th)+pT(l)+pT(b)+pT(b)+mET • Uncert.: ISR, FSR, t-ID, isolation,… • Results: Hyp: Y-M coulings & b=100% e+thad m+thad mLQ3>251 GeV (Min. couplings) mLQ3>317 GeV (Y-M couplings) Moriond QCD 2007 20 March 2007

  8. II. FERMIONS SUB-STRUCTURE 2. Search for Leptons & Quarks Compositeness Compositeness SM Contact Interaction O(99%) O. Cakir et al., Eur. Phys. JC32S2 (2004) 1 Gauge Mediation O(1%) Ref.: U. Baur et al, Phys. Rev. D42 (1990) 815-824 • Parameters: • L: comp. Scale • m(f*): mass of excited fermion • hL: factors of left-handed currents • Modifications of the g*/Z cross section: • Parameters: • compositeness scale L • f and f’ that depend on the composite dynamics • Me* Moriond QCD 2007 20 March 2007

  9. II. FERMIONS SUB-STRUCTURE 2. Search for Leptons & Quarks Compositeness CDF D0 Detailed Moriond QCD 2007 20 March 2007

  10. Search for Excited m • D0: • Analysis: qqbar  m*m  mm+g • Data sample: 380 pb-1 • Triggers: di-muons • Event selection: • 2 hard m (at least 1 isolated) • +1 hard & isolated g • Uncert.: trigger e, m reco & ID,… • Results: • m(m*)>618 GeV for L=1 TeV CI L (TeV) mmg Moriond QCD 2007 20 March 2007 mm* (GeV)

  11. Search for Excited e • D0: • Analysis: qqbar  e*e  ee+g • Data sample: 1 fb-1 • Triggers: single e & di-e • Event selection: • at least 2 hard & isolated e • +1 hard & isolated g (CC or EC) • optimization: m(eg) and DR(e2,g) • Uncert.: QCD estimation, g fake rate, PDF, … • Results: • m(e*)>756 GeV for L=1 TeV (CI) • m(e*)>793 GeV for L=m(e*) (CI) meg Moriond QCD 2007 20 March 2007

  12. Inclusive Jet Cross Section • CDF: • Analysis: QCD ds/dydpT • Data sample: 1.04 fb-1 • Triggers: j20, j50, j70, j100 • Samples processing: • Theory: sNLOfrom EKS • Data: • particle lvl corr. + unfolding • parton lvl corr. • Event reconstruction: • midpoint 0.7 cone jets • Event selection: • |y|<2.1 • low mET significance • |zPV|<60 cm • Uncert.: PDF, scale, UE & fragm.,… • Results: • no explicit limit on comp. scale or m(q*) • yet, no excess at the highest pT ever probed Moriond QCD 2007 20 March 2007

  13. III. EXTENDED GAUGE SYMMETRIES Ext. TC GUT SM L. Higgs Extra-D 1. Search for W’ 2. Search for Z’ • Larger gauge group: E6 • Z’q=Zfcosq+Zcsinq • suppose SM-like couplings • Larger gauge group (E6, SO(10),…) • Hypotheses: • No gauge mixing • Same CKM as in SM • DK into light n Moriond QCD 2007 20 March 2007

  14. III. EXTENDED GAUGE SYMMETRIES 1. Search for W’ D0 CDF Detailed 2. Search for Z’ Moriond QCD 2007 20 March 2007

  15. Search for W’ • D0: • Analysis: W’en • Triggers: single e • Data sample: 900 pb-1 • Instr. background: QCD from data • Event selection: • at least 1 central, hard and isolated e • w/ track match (but no E/p) • large mET significance • Uncert.: norm., e corr., PDF, EM scale, QCDscaling,… • Results: • shape of mT tail above 150 GeV • Nobs= 630 • Nexp(B)=622.93+/-17.91+82.65-72.25 • Nexp(S)=16.64+/-0.39+6.86-6.06 • (mW’= 900 GeV) mW’>965 GeV Moriond QCD 2007 20 March 2007

  16. Search for Z’ • CDF: • Analysis: Z’ee (G2g) • Triggers: di-EM • Data sample: 1288 pb-1 • MC: • Signal (Pythia): • E6 (S=1) • and separately RS (S=2) • Physics BKGD (Pythia) • Main BKGD: g*/Zee • Event selection: • 2 hard & isolated e (CC-CC or CC-EC) • track match for CC e • Uncert.: lumi,PDF, ISR, e(e ID),… • Results: Mee tail above 150 GeV Moriond QCD 2007 20 March 2007

  17. m(G)>807 GeV (0.1) m(G)>889 GeV (0.1) m(Z’)>923 GeV SM-like Comb ee+gg Moriond QCD 2007 20 March 2007

  18. IV. EXTENDED NUMBER OF SPACE DIMENSIONS g g g q GKK GKK g q f f V GKK GKK f f V SM monojets Extra-D 1. Search for Large Extra-Dimensions • ADD • 2 to 7 large (sub mm) EDs • gravity propagates freely in the bulk • KK excitations cannot be resolved • parameter: hG =F/MS4 (GRW: F=1) 2. Search for Randall-Sundrum Gravitons • RS • one 5th (infinite) ED with warped geometry • gravity is localized on a brane other than the • SM brane • KK excitations have spacings of order TeV • parameters: • M1: mass of the 1st KK excitation • 0.01 < k(8p)1/2/MPl < 0.1 Moriond QCD 2007 20 March 2007

  19. IV. EXTENDED NUMBER OF SPACE DIMENSIONS 1. Search for Large Extra-Dimensions 2. Search for Randall-Sundrum Gravitons Detailed CDF D0 Moriond QCD 2007 20 March 2007

  20. Search for LED • CDF: • Analysis: qqbar/g+g G+g, q+g G+q • Triggers: j100 • Data sample: 1100 pb-1 • Event selection: • remove events from: • beam halo, cosmics • 1 very hihg pT jet: • CC, track confirmed • pT(j2)<60 GeV • Main BKGD: Z(nn)+jets • Uncert.: PDF, ISR/FSR, JES,… • Results: • Nobs= 779 • Nexp(B)=819+/-71 Moriond QCD 2007 20 March 2007

  21. VII. CONCLUSIONS • Many topologies have been covered • Many analyses have been (or are being) updated • to the full Run IIA dataset… • Yet no evidence of New Physics… Exclusion Limits Moriond QCD 2007 20 March 2007

  22. Search for LeptoQuarks Summary Th. Uncert. signal D0 CDF Comb. Comb. w/ Run I Run II Alone Moriond QCD 2007 20 March 2007

  23. Search for Leptons & Quarks Compositeness Summary D0 CDF Search for W’ Summary Moriond QCD 2007 20 March 2007

  24. Search for Z’ Summary D0 CDF E6 Z’ R-S k(8p)1/2/MPl Moriond QCD 2007 20 March 2007

  25. Search for Z’ Summary D0 CDF LED GRW Conventions Moriond QCD 2007 20 March 2007

  26. VI. PROSPECTS FOR THE RUN II B As of sept. 05 (P5) Z’ LED Run II B… or LHC? CDF D0 Moriond QCD 2007 20 March 2007

  27. BACK-UP Moriond QCD 2007 20 March 2007

  28. The TEVATRON Now This talk Moriond QCD 2007 20 March 2007

  29. TEVATRON Luminosity Instantaneous Integrated Moriond QCD 2007 20 March 2007

  30. p The D0 Detector Upgraded @ Run IIa Muon system, CAL Electronics DAQ, (track) trigger system Displaced-vtx trigger • New @ Run IIa(tracking in B-field) Silicon detector Fiber tracker, preshowers Tracker Solenoid Magnet p 3 LayerMuon System Moriond QCD 2007 20 March 2007 Preshowers Electronics

  31. Addition or Improvments for the Run IIA Si tracker Central drift chamber TOF Secondary vertex trigger The CDF Detector Addition or Improvments for the Run IIA • Forward calorimeters: "plugs" (1<|h|<3) • Extended m coverage Moriond QCD 2007 20 March 2007

  32. I. INTRODUCTION The TEVATRON Performances Run II A <eDAQ> ~ 80-85% This talk: 200-1300 pb-1 Moriond QCD 2007 20 March 2007

  33. Searches for SLQ1/2 pairs • D0: • Analysis: LQ pairs 2n+2q • Triggers: jets+mET • Data sample: 310 pb-1 • Instr. background: QCD estimated from data • Event selection: • at least 2 hard and acoplanar jets • no flavor tagging • large mET & HT • Uncert.: Syst(B) ~ Stat(B) (JES),… • Results: • Nobs=86 • Nexp(B)=75.2+14.6-15.5 • Nexp(S)=51.8+5.9-4.9 • (mLQ =140 GeV) • mLQ>136 GeV • (95% CL) Moriond QCD 2007 20 March 2007

  34. Searches for SLQ1/2 pairs • CDF Combination: • Analyses: • 3 topologies 2l+jets, l+jets+mET, jets+mET • for both LQ1 and LQ2 pair production • Bayesian combined likelihood • Data samples: each ~200 pb-1 • Results: b LQ1 b mLQ =160 GeV mLQ =160 GeV LQ2 Moriond QCD 2007 20 March 2007

  35. Searches for SLQ3 pairs • D0: • Analysis: SLQ3 pairs 2n+2b • Data sample: 310 pb-1 • Triggers: jets+mET &m+jets • Instr. background: QCD from data • Event selection: • at least 2 hard acoplanar jets • large mET & HT • reject isolated EM-clusters & isolated m • 2 jets b-tagged • Uncert.: BKGD s, e(b-tag), JES,… • Results: • Nobs=1 • Nexp(B)=3.47+/-0.24 • Nexp(S)=8.8+/-0.2, e=10.6% • (mLQ =200 GeV) QCD Presel. mET Final mET mLQ3>213 GeV Moriond QCD 2007 20 March 2007

  36. Search for Excited m • CDF: • Analysis: qqbar  m*m  mm+g • Data sample: 371 pb-1 • Triggers: incl. m • Event selection: • 2 hard & isolated m • +1 hard & isolated g • Uncert.: m and g ID, PDF, trigger e,… • Results: • Hyp: CI BR(m*mg) same as in GM • m(m*)>853 GeV for L=m(m*) in CI • m(m*)>237 GeV for L=m(m*) in GM • Comparison wrt D0: • Hyp: BR(m*mg) includesCI • CDF: m(m*)>696 GeV for L=m(m*) • D0: m(m*)>688 GeV for L=m(m*) mmg Moriond QCD 2007 20 March 2007

  37. Search for W’ • CDF: • Analysis: W’en • Triggers: incl. e • Data sample: 205 pb-1 • Instr. background: QCD from data • Event selection: • 1 hard & isolated e • large mET • cut on pT(e)/mET • Uncert.: PDF, e E-scale & resolution, ISR,… • Results: • shape of mT tail above 200 GeV Moriond QCD 2007 20 March 2007

  38. Search for LED Very nice CDF monojet candidate pT (j)=384 GeV & mET =390 GeV Run 155313, Event 273486 Moriond QCD 2007 20 March 2007

  39. Large ED Searches at Colliders ED Nbers and Radii Eöt-Wash Experiment Test Newton’s Law downto Ref: Adelberger et al, PRL 86 (2001) Moriond QCD 2007 20 March 2007

  40. Large ED Searches at Colliders Courtesy of Eot-Wash group Moriond QCD 2007 20 March 2007

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