Searches for squark and gluino production in hadronic final states with the ATLAS experiment

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1 Searches for squark and gluino production in hadronic final states with the experiment Geert-Jan Besjes (Niels Bohr Institute, University of Copenhagen) On behalf of the collaboration XXIV International Workshop on Deep-Inelastic Scattering and Related Subjects Hamburg, April 6

2 DIS 6, Hamburg / April 6 / Geert-Jan Besjes Overview Why supersymmetry? Supersymmetry production at the LHC The detector Targeted SUSY models Analysis strategy Discriminating variables Background estimation Results Conclusion and outlook

3 DIS 6, Hamburg / April 6 / Geert-Jan Besjes Why do we (still) like supersymmetry? er en yp ov isc ng di No SUSY detected yet: broken symmetry A priori > free parameters in the full model Mass hierarchy and mixing matrices dictate possible decays and determine the lifetimes Many possible scenarios in your detector! D SUSY is a matter-force symmetry Introduces bosonic superpartners for SM fermions, fermionic partners for SM bosons Allows unification of fundamental interactions Provides solution to the hierarchy problem and fine-tuning of the Higgs mass Offers candidate for dark matter particles

4 DIS 6, Hamburg / April 6 / Geert-Jan Besjes Supersymmetry at the LHC In the Minimal Supersymmetric Standard Model (MSSM), baryon number and lepton not preserved: introduce quantum number R = (-) (B-L)+s SM and SUSY get opposite parities; assuming R-parity conserved: pair production; stable lightest SUSY particle (LSP). (For RPV SUSY, see Bradley Axen's talk) At the LHC, main prod. mechanisms: 4 Strong production of squarks and gluinos: dominant, search using ing energy and jets rd generation production (stop and sbottom quark): light rd gen. squarks preferred by naturalness arguments; analyses exploit states with b-jets Electroweak production: direct production of gauginos (charginos, neutralinos) see also Yusufu Shehu's talk Cross Section [pb] TeV -4 TeV g ~ g ~ + g ~ g ~ q ~ q ~ ~ ~ t t χ χ q ~ M particle [GeV] arxiv:4.47 q ~ Cross-section for EWK at 4 TeV, for coloured particles at TeV q ~ g ~

5 DIS 6, Hamburg / April 6 / Geert-Jan Besjes Total Integrated Luminosity fb- The detector 5 Preliminary s = TeV LHC Delivered Recorded All Good for Physics 4 Total Delivered: 4. fb- Total Recorded:.9 fb- All Good for Physics:. fb- /6 5 High-precision tracking system (silicon pixels/strips and a transition radiation tracker), with new insertable b-layer (IBL) Two calorimeters (EM: liquid Ar; hadronic: scintillating tiles) /7 /8 /9 Muon spectrometer: muon identification (comb. with tracker) Two large magnet systems (toroidal and solenoidal) Good jet resolution especially important for SUSY searches / / Day in 5

6 DIS 6, Hamburg / April 6 / Geert-Jan Besjes SUSY in your detector q neutralino squark q gluino proton proton squark q neutralino 6 All prompt decays; not a Feynman diagram (RPV and long-lived SUSY in Bradley Axen's talk)

7 DIS 6, Hamburg / April 6 / Geert-Jan Besjes Analyses covered Inclusive searches: leptons + -6 jets: -CONF-5-6 leptons + 7- jets: arxiv:6.694 (SUSY-5-7) Third generation searches: leptons + b-jets: -CONF-5-66 or lepton + + b-jets: -CONF-5-67 See Sébastien Kahn's talk for leptonic final states! Some limits presented at the CERN seminar on 5 December 5 and at the winter conferences One result superseded by paper Documentation for all these in backup slides 7

8 DIS 6, Hamburg / April 6 / Geert-Jan Besjes Targeted models - inclusive squarks and gluinos -CONF-5-6 arxiv:6.694 Direct squark production Direct gluino production One-step gluino decays ~q denotes a squark of the first two generations p p p p g g g g ± ± t b ± t t Z/h W q q W Z q q Z W One-step gluino decays Two-step gluino decays 8

9 DIS 6, Hamburg / April 6 / Geert-Jan Besjes Variables used to discriminate signal and background The -6 jets search is based around the effective mass: m e = E T + X ijets p (i) T Correlates ~8% with SUSY particle mass in case of massless neutralino Additional cuts on Δϕ(jet, E T ) and E T /m eff to reduce the multijet background The 7- jets search additionally uses bins in the number of b-jets and uses the MET significance E T / H T, where H T is the sum of jet pt s 9

10 DIS 6, Hamburg / April 6 / Geert-Jan Besjes -CONF-5-66 Targeted models - third generation squarks -CONF-5-67 p p b b b b p p g g Gbb b b b b b b p p g g Gtt t t t t t t b-jet analysis uses contransverse mass: m CT =[E T (v )+E T (v )] [p T (v ) p T (v )] with v and v the two visible particles, which has an endpoint for ttbar at 5 GeV and for sbottom at m max CT =(m b m )/m b + b-jet analyses uses the effective mass and m T min (b-jets, E T ) which has an endpoint for semileptonic ttbar events In addition, it uses cuts on the number of high-mass large-radius jets for direct gluino decays via stop quarks (gluino ttbar + )

11 DIS 6, Hamburg / April 6 / Geert-Jan Besjes General analysis strategy All analyses performed on trigger plateau and with good data quality MC samples used to optimise event selection Data kept blinded in the signal regions until analysis almost completed SUSY signals acceptance and efficiency simulated with MC Background estimation: Reducible: due to fake or misidentified objects, typically fully data-driven approaches used Irreducible: taken from MC, normalised to data using simultaneous fit in control region(s); checked in validation region(s) Allows cancellation of uncertainties Note: n shape fits used Minor irreducible backgrounds: pure MC QCD control region W control region Signal region Scaled MC Top control region Z control region Unblind signal regions, and: celebrate in case of excess if not, interpret results using different models

12 DIS 6, Hamburg / April 6 / Geert-Jan Besjes W+jets and ttbar background estimation Events from W+jets and ttbar enter signal regions in case of ing leptons (out of acceptance or misidentification), or through hadronic tau decays Control regions with exactly isolated electron or muon used W+jets and ttbar separated by requiring or vetoing a b-jet, respectively Kinematic cuts slightly relaxed w.r.t. signal region Final prediction obtained in simultaneous control region fit events / GeV - s= TeV,. fb Preliminary CRW CRW for SR4jt Data 5 SM Total Diboson Z+jets events / GeV tt(+ew) & single top Multi jet W+jets - s= TeV,. fb Preliminary CRT CRT for SR4jt Data 5 SM Total Diboson Z+jets W+jets Multi jet tt(+ew) & single top Data / MC Data / MC.5 m eff (incl.) [GeV] m eff (incl.) [GeV] m eff (incl.) [GeV] m eff (incl.) [GeV]

13 DIS 6, Hamburg / April 6 / Geert-Jan Besjes Z νν background estimation Not enough Z l l data to use as control region γ+jets events used instead: similar kinematic properties to the signal region used, but with a high-pt photon instead of E T Instrumental effects assumed to be identical for both processes Z/γ correction factor derived from data and MC in loose control region Obtained normalisation validated against measured Z l l events events / GeV Preliminary - s= TeV,. fb CRY CRγ for SR4jt Data 5 SM Total Diboson Z+jets tt(+ew) & single top W+jets γ+jets Data / MC m eff (incl.) [GeV] m eff (incl.) [GeV]

14 DIS 6, Hamburg / April 6 / Geert-Jan Besjes QCD background estimation The -6 jet and + b-jet analyses: the background is negligible (<.5%) due to hard selections on E T and Δϕ(jet, E T ) 7- jet analysis has soft cut on E T / H T : QCD remains a major background Remaining background estimated from a template at low jet multiplicity data of the E T / H T distribution Assumed that distribution is invariant to higher jet multiplicities (Validated in regions with lower jet multiplicities than SR) / Events / 4 GeV s = TeV,. fb VRJ 7j5-b Data Total background Multijet (=6-jet data) tt ql, ll W lν + jets Other pmssm benchmark -step benchmark / Events / 4 GeV 5 4 s = TeV,. fb VRJ 6j8-b Data Total background Multijet (=5-jet data) tt ql, ll W lν + jets Other pmssm benchmark -step benchmark 7-jet VR 6-jet VR 4 Data / Prediction / / [GeV ] E T H T Data / Prediction / / [GeV ] E T H T

15 DIS 6, Hamburg / April 6 / Geert-Jan Besjes Results: gluino decays via squark, sbottom and stop -CONF-5-6 -CONF-5-67 Results from -6 jet search: 7 overlapping SRs with -6 jets using cuts on m eff and E T /m eff ; best SR picked for each point Results from + b-jet search: uses SRs Events/ 5 GeV lep, 4+ OR 8+ jets, with cuts on E T and m eff, to target sbottom lep + 6+ jets to target stop NEW: statistical combination of + lepton regions Preliminary - s = TeV,. fb SR-Gtt-L-C SR Data 5 Total background tt Single top tt + W/Z/h Z+jets W+jets Diboson Gtt: m ~, m = 6, g χ Gtt: m ~, m = 4, 8 g χ [GeV] [GeV] m χ m χ ~ ~ ~ ~ ~ gg production, g tt+ χ, m( q) >> m( g) g ~ - g ~ m~ [GeV] g g m~ qqqqχ χ m~ g < m χ s= TeV,. fb < m χ Preliminary -lepton + -6 jets + E - s = TeV,. fb + m t Preliminary - T SUSY Observed limit (± σ theory ) Expected limit (± σ exp ) - 8 TeV,. fb All limits at 95% CL 8 TeV,. fb - Expected limit (± σ exp ) Observed limit (± σ All limits at 95% CL SUSY theory ) Decays to squark Decays to stop E T [GeV] m~ g [GeV]

16 DIS 6, Hamburg / April 6 / Geert-Jan Besjes Results: direct squark decays, gluino one- and twostep -CONF-5-6 arxiv:6.694 events / GeV Data / MC.5.5 Preliminary - s= TeV,. fb Results from -6 jet search: see previous slide Results for 7- jet search: two sets of regions using 5 GeV jets or 8 GeV jets 5 GeV: 8+, 9+ or + jets with, or + b-jets. E T / H T cut 8 GeV: idem only with 7+ or 8+ jets Best SR picked for each model point -6 jets search 7- jets search 6 SRjt Data 5 SM Total Diboson Z+jets tt(+ew) & single top W+jets Multi jet ~ ~ qq direct, ~ m( q, χ )=(, ) m eff (incl.) [GeV] m eff (incl.) [GeV] / Events / 4 GeV Data / Prediction - s = TeV,. fb SR j5-b Data Total background Multijet (=6-jet data) tt ql, ll W lν + jets Other pmssm benchmark -step benchmark / / [GeV ] E T H T ) [GeV] m(χ [GeV] m χ ~ ± ± g - ~ g, ~ g qqwzχ ; m(χ )=[m( ~ g)+m(χ )]/, m(χ )=[m(χ )+m(χ )]/ Expected (± σ exp ) SUSY Observed (± σ ) theory 8 TeV,. fb q ~ - q ~ qqχ χ m~ q < m χ Preliminary -lepton + -6 jets + E - s = TeV,. fb T Multijets + E T s= TeV,. fb Combined All limits 95% CL m( ~ g) [GeV] SUSY Observed limit (± σ theory ) Expected limit (± σ exp ) - 8 TeV,. fb All limits at 95% CL m~ [GeV] q Twostep gluino Direct squark

17 DIS 6, Hamburg / April 6 / Geert-Jan Besjes Results: bottom-squark pair-production -CONF-5-66 b-jet search with two sets of SRs: one for large and one for small mass differences between sbottom and LSP Improvement due to IBL: x rejection of light jets at same b-tagging efficiency For large mass differences cut on contransverse mass; for small mass differences use recoil against ISR jet Backgrounds: W+jets, Z+jets and top events from control regions with or leptons 7 Events / 5 GeV Data / SM Preliminary - s= TeV,. fb Data SM total tt Single top Others W + jets Z + ~ jets m( b)=7, m( χ )= SRA [GeV] m CT [GeV] χ m ~ Bottom squark pair production, b b Preliminary - s= TeV,. fb All limits at 95% CL Best SR ~ b b χ forbidden E + b-jets,. fb [GeV] T χ - monojet,. fb, Observed limit (± σ -, s=8 TeV m~ b SUSY theory Expected limit (± σ exp ) s=8 TeV )

18 DIS 6, Hamburg / April 6 / Geert-Jan Besjes Conclusion and outlook First run- data has made 5 a productive year for SUSY searches for squarks and gluinos Most searches focused on a simple strategy analogous to run- and primarily on gluino production, due to cross-section increase Many benefitted from additional discovery potential No significant excesses over Standard Model observed 6 will be a very interesting year for SUSY searches as the LHC ventures into territory (far) beyond the currently obtained limits! 8 SUSY Searches* - 95% CL Lower Limits Preliminary Status: March 6 s =7,8,TeV Model e,µ,τ,γ Jets E L dt[fb T ] Mass limit s =7,8TeV s =TeV Reference Inclusive Searches rd gen. g med. rd gen. squarks direct production MSUGRA/CMSSM - e,µ/- τ - jets/ b Yes. q, g.85 TeV m( q)=m( g) q q, q q χ -6 jets Yes. q 98 GeV m( χ )= GeV, m( st gen. q )=m( nd gen. q ) -CONF-5-6 q q, q q χ (compressed) mono-jet - jets Yes. q 6 GeV m( q)-m( χ )<5GeV To appear q q, q q(ll/lν/νν) χ e,µ(off-z) jets Yes. q 8 GeV m( χ )= GeV 5.9 g g, g q q χ -6 jets Yes. g.5 TeV m( χ )= GeV -CONF-5-6 g g, g qq χ ± qqw ± χ e,µ -6 jets Yes. g.6 TeV m( χ GeV, m( χ ± )=.5(m( χ )+m( g)) -CONF-5-76 g g, g qq(ll/lν/νν) χ e,µ - jets - g.8 TeV )<5 m( χ )=GeV g g, g qqwz χ GMSB ( l NLSP) 7- jets Yes. g.4 TeV m( χ ) = GeV τ + -l - jets Yes. g.6 TeV tanβ > 47.6 GGM (bino NLSP) γ - Yes. g.4 TeV cτ(nlsp)<. mm GGM (higgsino-bino NLSP) γ b Yes. g.7 TeV m( χ )<95 GeV, cτ(nlsp)<. mm, µ< GGM (higgsino-bino NLSP) γ jets Yes. g. TeV m( χ )<85 GeV, cτ(nlsp)<. mm, µ> GGM (higgsino NLSP) e,µ(z) jets Yes. g 9 GeV m(nlsp)>4 GeV 5.9 Gravitino LSP mono-jet Yes. F / scale 865 GeV m( G)>.8 4 ev, m( g)=m( q)=.5 TeV 5.58 g g, g b b χ b Yes. g.78 TeV m( χ )<8 GeV -CONF-5-67 g g, g t t χ - e,µ b Yes. g.76 TeV m( χ )=GeV To appear g g, g b t χ + - e,µ b Yes. g.7 TeV m( χ )< GeV 47.6 b b, b b χ b Yes. b 84 GeV m( χ )< GeV -CONF-5-66 b b, b t χ ± e,µ(ss) - b Yes. b 5-54 GeV m( χ )=5 GeV, m( χ ± )= m( χ )+ GeV t t, t b χ ± - e,µ - b Yes 4.7/. t 7-7 GeV -5 GeV m( χ ± )=m( χ ), m( χ )=55 GeV 9., t t, t Wb χ or t χ - e,µ - jets/- b Yes. t 9-98 GeV 5-75 GeV GeV m( χ )= GeV , -CONF-6-7 t t, t c χ mono-jet/c-tag Yes. t 9-45 GeV m( t)-m( χ )<85 GeV t t (natural GMSB) e,µ(z) b Yes. t 5-6 GeV m( χ )>5 GeV 4.5 t t, t t + Z e,µ(z) b Yes. t 9-6 GeV m( χ )< GeV 4.5 t t, t t + h e,µ 6jets+b Yes. t -6 GeV m( χ )=GeV All SUSY public results always available online

19 Backup material DIS 6, Hamburg / April 6 / Geert-Jan Besjes

20 DIS 6, Hamburg / April 6 / Geert-Jan Besjes SUSY Searches* - 95% CL Lower Limits Status: March 6 Model e,µ,τ, γ Jets E T Preliminary s =7,8,TeV L dt[fb ] Mass limit s =7,8TeV s =TeV Reference Inclusive Searches rd gen. g med. rd gen. squarks direct production EW direct Long-lived particles RPV Other MSUGRA/CMSSM - e,µ/- τ - jets/ b Yes. q, g.85 TeV m( q)=m( g) q q, q q χ -6 jets Yes. q 98 GeV m( χ )= GeV, m( st gen. q )=m( nd gen. q ) -CONF-5-6 q q, q q χ (compressed) mono-jet - jets Yes. q 6 GeV m( q)-m( χ )<5GeV To appear q q, q q(ll/lν/νν) χ e,µ(off-z) jets Yes. q 8 GeV m( χ )= GeV 5.9 g g, g q q χ -6 jets Yes. g.5 TeV m( χ )= GeV -CONF-5-6 g g, g qq χ ± qqw ± χ e,µ -6 jets Yes. g.6 TeV m( χ )<5 GeV, m( χ ± )=.5(m( χ )+m( g)) -CONF-5-76 g g, g qq(ll/lν/νν) χ e,µ - jets - g.8 TeV m( χ )=GeV g g, g qqwz χ 7- jets Yes. g.4 TeV m( χ ) = GeV GMSB ( l NLSP) - τ + -l - jets Yes. g.6 TeV tanβ > 47.6 GGM (bino NLSP) γ - Yes. g.4 TeV cτ(nlsp)<. mm GGM (higgsino-bino NLSP) γ b Yes. g.7 TeV m( χ )<95 GeV, cτ(nlsp)<. mm, µ< GGM (higgsino-bino NLSP) γ jets Yes. g. TeV m( χ )<85 GeV, cτ(nlsp)<. mm, µ> GGM (higgsino NLSP) e,µ(z) jets Yes. g 9 GeV m(nlsp)>4 GeV 5.9 Gravitino LSP mono-jet Yes. F / scale 865 GeV m( G)>.8 4 ev, m( g)=m( q)=.5 TeV 5.58 g g, g b b χ b Yes. g.78 TeV m( χ )<8 GeV -CONF-5-67 g g, g t t χ - e,µ b Yes. g.76 TeV m( χ )=GeV To appear g g, g b t χ + - e,µ b Yes. g.7 TeV m( χ )< GeV 47.6 b b, b b χ b Yes. b m( χ 84 GeV )< GeV -CONF-5-66 b b, b t χ ± e,µ(ss) - b Yes. b m( χ )=5 GeV, m( χ ± )= m( χ 5-54 GeV )+ GeV t t, t b χ ± - e,µ - b Yes 4.7/. t m( χ ± )=m( χ ), m( χ 7-7 GeV -5 GeV )=55 GeV 9., t t, t Wb χ or t χ - e,µ - jets/- b Yes. t m( χ 9-98 GeV 5-75 GeV GeV )= GeV , -CONF-6-7 t t, t c χ mono-jet/c-tag Yes. t m( t )-m( χ 9-45 GeV )<85 GeV t t (natural GMSB) e,µ(z) b Yes. t m( χ 5-6 GeV )>5 GeV 4.5 t t, t t + Z e,µ(z) b Yes. t m( χ 9-6 GeV )< GeV 4.5 t t, t t + h e,µ 6 jets + b Yes. t m( χ -6 GeV )=GeV l L,R l L,R, l l χ e,µ Yes. l 9-5 GeV m( χ )= GeV χ + χ, χ + lν(l ν) e,µ Yes. χ ± GeV m( χ )= GeV, m( l, ν)=.5(m( χ ± )+m( χ )) χ + χ, χ + τν(τ ν) τ - Yes. χ ± 55 GeV m( χ )= GeV, m( τ, ν)=.5(m( χ ± )+m( χ )) 47.5 χ ± χ l L ν l L l( νν), l ν l L l( νν) e,µ Yes. χ ± 75 GeV m( χ ± )=m( χ ), m( χ )=, m( l, ν)=.5(m( χ ± )+m( χ )) 4.79, χ χ ± χ W χ Z χ - e,µ - jets Yes. χ ± 45 GeV m( χ ± )=m( χ ), m( χ )=, sleptons decoupled 4.594, 4.79, χ χ ± χ W χ h χ, h b b/ww/ττ/γγ e,µ,γ - b Yes. χ ± 7 GeV m( χ ± )=m( χ ), m( χ )=, sleptons decoupled 5.7, χ χ χ, χ, l R l 4 e,µ Yes. χ 65 GeV m( χ )=m( χ ), m( χ )=, m( l, ν)=.5(m( χ )+m( χ, )) GGM (wino NLSP) weak prod. e,µ+ γ - Yes. W 5-7 GeV cτ<mm Direct χ + χ prod., long-lived χ ± Disapp. trk jet Yes. χ ± m( χ ± )-m( χ ) 6 MeV, τ( χ ± 7 GeV )=. ns.675 Direct χ + χ prod., long-lived χ ± de/dx trk - Yes 8.4 χ ± m( χ ± )-m( χ ) 6 MeV, τ( χ ± 495 GeV )<5 ns 56.5 Stable, stopped g R-hadron -5 jets Yes 7.9 g 85 GeV m( χ )= GeV, µs<τ( g)< s.6584 Metastable g R-hadron de/dx trk - -. g.54 TeV m( χ )= GeV, τ> ns To appear GMSB, stable τ, χ τ(ẽ, µ)+τ(e,µ) - µ χ 57 GeV <tanβ< GMSB, χ γ G, long-lived χ γ - Yes. χ 44 GeV <τ( χ )< ns,sps8model g g, χ eeν/eµν/µµν displ. ee/eµ/µµ - -. χ. TeV 7 <cτ( χ )< 74 mm, m( g)=. TeV GGM g g, χ Z G displ. vtx + jets - -. χ. TeV 6 <cτ( χ )< 48 mm, m( g)=. TeV LFV pp ν τ + X, ν τ eµ/eτ/µτ eµ,eτ,µτ - -. ντ.7 TeV λ =., λ//= Bilinear RPV CMSSM e,µ(ss) - b Yes. q, g.45 TeV m( q)=m( g), cτ LS P< mm 44.5 χ + χ, χ + W χ, χ ee ν µ, eµ ν e 4 e,µ - Yes. χ ± 76 GeV m( χ )>. m( χ ± ), λ χ + χ, χ + W χ, χ ττ ν e, eτ ν τ e,µ+ τ - Yes. χ ± 45 GeV m( χ χ ± ), λ )>. m( g g, g qqq 6-7 jets -. g 97 GeV BR(t)=BR(b)=BR(c)=% g g, g qq χ, χ qqq g g, g t t, t bs 6-7 jets -. g 98 GeV m( χ )=6 GeV e,µ(ss) - b Yes. g 88 GeV 44.5 t t, t bs b jets + -. t GeV t t, t bl e,µ b -. t.4-. TeV BR( t be/µ)>% -CONF-5-5 Scalar charm, c c χ c Yes. c 5 GeV m( χ )< GeV 5.5 *Only a selection of the available mass limits on new states or phenomena is shown. Mass scale [TeV]

21 DIS 6, Hamburg / April 6 / Geert-Jan Besjes Background estimation using control regions Initial predicted background CR CR N Normalization via likelihood fit Normalized background CR CR N Transfer factor Background extrapolated to SR SR SR N Interpretation using log-likelihood ratio Transfer factor VR Signal Validation of extrapolated background fit result VR N arxiv:4.8 / Eur. Phys. J. C 75 (5) 5

22 leptons, -6 jets, E T -CONF-5-6 DIS 6, Hamburg / April 6 / Geert-Jan Besjes

23 DIS 6, Hamburg / April 6 / Geert-Jan Besjes -lepton: signal and control region definitions -CONF-5-6 Requirement Signal Region jl jm jt 4jt 5j 6jm 6jt E T [GeV] > p T (j )[GeV]> p T (j )[GeV]> 5 p T (j )[GeV]> p T (j 4 )[GeV]> p T (j 5 )[GeV]> p T (j 6 )[GeV]> (jet,,(), E T ) min > (jet i>, E T ) min >. E T /p H T [GeV / ] > 5 Aplanarity >.4 E T /m e (N j ) >..5. m e (incl.) [GeV]> CR SR background CR process CR selection CR Z(! )+jets +jets Isolated photon CRQ Multi-jet Multi-jet SR with reversed requirements on (i) (jet, E T ) min and (ii) ET /m e (N j )oret /p H T CRW W (! ` )+jets W (! ` )+jets GeV <m T (`, E T CRT t t(+ew) and single top t t! b bqq ` GeV <m T (`, E T ) < GeV, b-veto ) < GeV, b-tag

24 DIS 6, Hamburg / April 6 / Geert-Jan Besjes -lepton: control region results -CONF-5-6 CRY CRT CRW events / GeV Preliminary - s= TeV,. fb CRγ for SR4jt Data 5 SM Total Diboson Z+jets events / GeV tt(+ew) & single top W+jets γ+jets Preliminary - s= TeV,. fb CRT for SR4jt Data 5 SM Total Diboson Z+jets W+jets Multi jet events / GeV tt(+ew) & single top Preliminary - s= TeV,. fb CRW for SR4jt Data 5 SM Total Diboson Z+jets tt(+ew) & single top Multi jet W+jets Data / MC Data / MC.5 m eff (incl.) [GeV] m eff (incl.) [GeV] Data / MC.5 m eff (incl.) [GeV] m eff (incl.) [GeV] m eff (incl.) [GeV] m eff (incl.) [GeV] Control regions shown for SR4jt 4

25 DIS 6, Hamburg / April 6 / Geert-Jan Besjes -lepton: signal region results - / -CONF-5-6 events / GeV Preliminary - s= TeV,. fb SRjl Data 5 SM Total Diboson Z+jets tt(+ew) & single top W+jets Multi jet ~ ~ qq direct, ~ m( q, χ )=(8, 4) events / GeV Preliminary - s= TeV,. fb SRjm Data 5 SM Total Diboson Z+jets tt(+ew) & single top W+jets Multi jet ~ ~ gg direct, ~ m( g, χ )=(75, 65) Data / MC m eff (incl.) [GeV] m eff (incl.) [GeV] Data / MC m eff (incl.) [GeV] m eff (incl.) [GeV] events / GeV Preliminary - s= TeV,. fb SRjt Data 5 SM Total Diboson Z+jets tt(+ew) & single top W+jets Multi jet ~ ~ qq direct, ~ m( q, χ )=(, ) events / GeV Preliminary - s= TeV,. fb SR4jt Data 5 SM Total Diboson Z+jets tt(+ew) & single top W+jets Multi jet ~ ~ gg direct, ~ m( g, χ )=(4, ) 5 Data / MC m eff (incl.) [GeV] m eff (incl.) [GeV] Data / MC m eff (incl.) [GeV] m eff (incl.) [GeV]

26 DIS 6, Hamburg / April 6 / Geert-Jan Besjes -lepton: signal region results - / -CONF-5-6 events / GeV Preliminary - s= TeV,. fb SR5j Data 5 SM Total Diboson Z+jets tt(+ew) & single top W+jets Multi jet ~ ~ gg onestep, ~ m( g, χ ±, χ )=(65, 945, 65) events / GeV Preliminary - s= TeV,. fb SR6jm Data 5 SM Total Diboson Z+jets tt(+ew) & single top W+jets Multi jet ~ ~ gg onestep, ~ m( g, χ ±, χ )=(65, 945, 65) events / GeV Preliminary - s= TeV,. fb SR6jt Data 5 SM Total Diboson Z+jets tt(+ew) & single top W+jets Multi jet ~ ~ gg onestep, ~ m( g, χ ±, χ )=(85, 75, 5) Data / MC m eff (incl.) [GeV] m eff (incl.) [GeV] Data / MC m eff (incl.) [GeV] m eff (incl.) [GeV] Data / MC m eff (incl.) [GeV] m eff (incl.) [GeV] 6

27 DIS 6, Hamburg / April 6 / Geert-Jan Besjes -lepton: results table -CONF-5-6 Signal Region jl jm jt 4jt 5j 6jm 6jt MC expected events Diboson Z/ +jets W+jets t t(+ew) + single top Multi-jet.6.8. Total MC Fitted background events Diboson ± 7 ± 7 4. ±..67 ±.5.4 ±.. ±.6.5 ±.4 Z/ +jets 7 ± 85 ± 8 ± 4.5 ± ±.. ±.7. ±.6 W+jets 6 ± 4 ± 5.9 ±.8.7 ±.4. ±..7 ±.7. ±.6 t t(+ew) + single top 4.6 ±.9.5 ±.6.7 ±.5.6 ±.4.4 ±.5.8 ±.4.46 ±. Multi-jet.5 ±.6.6 ±.5 Total bkg 7 ± 6 ± ± 5.5 ±.8.7 ±. 5.5 ±.. ±.9 Observed h i 95 obs [fb] S 95 obs S 95 exp p (Z). (.). (.5).8 (.9).4 (.8).5 (.).5 (.).5 (.) 7

28 DIS 6, Hamburg / April 6 / Geert-Jan Besjes -lepton: results overview -CONF-5-6 Number of events Preliminary - s=tev,. fb Data 5 SM Total Multi jet W+jets tt(+ew) & single top Z+jets Diboson Data/Bkg jl jm jt 4jt 5j 6jm 6jt Signal Region 8

29 DIS 6, Hamburg / April 6 / Geert-Jan Besjes -lepton: systematic uncertainties -CONF-5-6 Channel jl jm jt 4jt 5j 6jm 6jt Total bkg Total bkg unc. ± [9%] ± [%] ±5 [5%] ±.8 [%] ±. [9%] ±. [%] ±.9 [9%] MC statistics ±.8 [%] ±.5 [%] ±.6 [7%] ±.5 [4%] ±.5 [6%] ±.7 [9%] µ Z+jets ±6[%] ±5 [%] ±. [%] ±.5 [4%] ±.8 [7%] ±.6 [%] ±.4 [%] µ W +jets ±4[%] ±4 [%] ±.7 [%] ±. [9%] ±.7 [6%] ±.5 [9%] ±.4 [%] µ Top ±. [%] ±.6 [%] ±. [%] ±.6 [7%] ±. [%] ±. [4%] ±.4 [8%] µ Multi jet ±.5 [%] ±.9 [%] CR corr. factor ±8 [%] ±6 [4%] ±.8 [4%] ±. [%] ±.9 [%] ±. [%] ±.7 [%] Theory W ±.4 [%] ±. [%] ±.4 [%] ±. [6%] ±.7 [6%] ±.4 [7%] ±.4 [%] Theory Z ±6 [%] ±. [%] ±4 [%] ±. [9%] ±.9 [8%] ±. [6%] ±. [%] Theory Top ±.7 [%] ±. [%] ±.5 [%] ±.4 [7%] ±. [%] ±.7 [5%] ±. [6%] Theory Diboson ±6 [7%] ±6 [%] ±. [%] ±. [9%] Jet/E T ±.5 [%] ±. [%] ±.9 [%] ±.4 [4%] ±.8 [7%] ±.4 [7%] ±.7 [9%] 9

30 DIS 6, Hamburg / April 6 / Geert-Jan Besjes -lepton: limit plots -CONF-5-6 [GeV] m χ 8 q ~ - q ~ qqχ χ Preliminary -lepton + -6 jets + E - s = TeV,. fb T SUSY Observed limit (± σ theory ) Expected limit (± σ exp ) - 8 TeV,. fb All limits at 95% CL [GeV] m χ 4 g ~ - g ~ qqqqχ χ Preliminary -lepton + -6 jets + E - s = TeV,. fb T SUSY Observed limit (± σ theory ) Expected limit (± σ exp ) - 8 TeV,. fb All limits at 95% CL m~ q < m χ 6 4 m~ g < m χ m~ [GeV] q ± g ~ - g ~ qqqqwwχ )=(m(g ~ χ, m(χ )+m(χ ))/ [GeV] m χ 4 Preliminary -lepton + -6 jets + E - s = TeV,. fb T m~ [GeV] g SUSY Observed limit (± σ theory ) Expected limit (± σ exp ) - 8 TeV,. fb All limits at 95% CL m~ g < m χ m~ [GeV] g

31 leptons, 7+ jets, E T arxiv:6.694 (SUSY-5-7) DIS 6, Hamburg / April 6 / Geert-Jan Besjes

32 DIS 6, Hamburg / April 6 / Geert-Jan Besjes Multijets: signal and control region definitions arxiv:6.694 (SUSY-5-7) 8j5 8j5-b 8j5-b 9j5 9j5-b 9j5-b j5 j5-b j5-b n n b jet E T /p H T > 4GeV / 7j8 7j8-b 7j8-b 8j8 8j8-b 8j8-b n n b jet E T /p H T > 4GeV / SR name nj5 or nj5-b or nj5-b nj8 or nj8-b or nj8-b CR name CR(n )j5-b CR(n )j5-b CR(n )j8-b CR(n )j8-b p`t m T (` {eµ}) > GeV < GeV E T /p H T > GeV / n CR 5 n 5 n CR 8 n 8 n b jet

33 DIS 6, Hamburg / April 6 / Geert-Jan Besjes Multijets: control region results (7-jet example) arxiv:6.694 (SUSY-5-7) Events / Bin Data s = TeV,. fb CR 7j5-b Total background tt ql, ll W lν + jets Other pmssm benchmark -step benchmark Events / Bin s = TeV,. fb CR 7j5-b Data Total background tt ql, ll W lν + jets Other pmssm benchmark -step benchmark - - Data / Prediction Number of jets (plus lepton) with p > 5 GeV and η <. T Data / Prediction Number of jets (plus lepton) with p > 5 GeV and η <. T

34 DIS 6, Hamburg / April 6 / Geert-Jan Besjes Multijets: closure test for multijets background arxiv:6.694 (SUSY-5-7) - s = TeV,. fb Any # b-jets Events per bin 4 Data / Prediction =7j5 8j > > j > 4. j5 =6j8 7j > > > j > 4. E T / H T / range [GeV ] 4

35 DIS 6, Hamburg / April 6 / Geert-Jan Besjes Multijets: signal region results (5 GeV jet regions) arxiv:6.694 (SUSY-5-7) / Events / 4 GeV 5 s = TeV,. fb 4 SR 8j5-b Data Total background Multijet (=6-jet data) tt ql, ll W lν + jets Other pmssm benchmark -step benchmark / Events / 4 GeV 5 4 s = TeV,. fb SR 8j5-b Data Total background Multijet (=6-jet data) tt ql, ll W lν + jets Other pmssm benchmark -step benchmark / Events / 4 GeV 4 s = TeV,. fb SR 8j5-b Data Total background Multijet (=6-jet data) tt ql, ll W lν + jets Other pmssm benchmark -step benchmark Data / Prediction / E T / H T [GeV ] Data / Prediction / E T / H T [GeV ] Data / Prediction / E T / H T [GeV ] / Events / 4 GeV 4 s = TeV,. fb SR 9j5-b Data Total background Multijet (=6-jet data) tt ql, ll W lν + jets Other pmssm benchmark -step benchmark / Events / 4 GeV 4 s = TeV,. fb SR 9j5-b Data Total background Multijet (=6-jet data) tt ql, ll W lν + jets Other pmssm benchmark -step benchmark / Events / 4 GeV s = TeV,. fb SR 9j5-b Data Total background Multijet (=6-jet data) tt ql, ll W lν + jets Other pmssm benchmark -step benchmark Data / Prediction / / / E T / H T [GeV ] E T / H T [GeV ] E T / H T [GeV ] Data / Prediction Data / Prediction / Events / 4 GeV s = TeV,. fb SR j5-b Data Total background Multijet (=6-jet data) tt ql, ll W lν + jets Other pmssm benchmark -step benchmark / Events / 4 GeV s = TeV,. fb SR j5-b Data Total background Multijet (=6-jet data) tt ql, ll W lν + jets Other pmssm benchmark -step benchmark / Events / 4 GeV s = TeV,. fb SR j5-b Data Total background Multijet (=6-jet data) tt ql, ll W lν + jets Other pmssm benchmark -step benchmark 5 Data / Prediction / E T / H T [GeV ] Data / Prediction / / E T / H T [GeV ] E T / H T [GeV ] Data / Prediction

36 DIS 6, Hamburg / April 6 / Geert-Jan Besjes Multijets: signal region results (8 GeV jet regions) arxiv:6.694 (SUSY-5-7) / Events / 4 GeV 5 4 To be put in Data- distributions in 4 SRs s = TeV,. fb SR 7j8-b Total background Multijet (=5-jet data) tt ql, ll W lν + jets Other pmssm benchmark -step benchmark / Events / 4 GeV s = TeV,. fb SR 7j8-b Data Total background Multijet (=5-jet data) tt ql, ll W lν + jets Other pmssm benchmark -step benchmark / Events / 4 GeV 4 s = TeV,. fb SR 7j8-b Data Total background Multijet (=5-jet data) tt ql, ll W lν + jets Other pmssm benchmark -step benchmark Data / Prediction / Events / 4 GeV / E T / H T [GeV ] Data s = TeV,. fb Total background SR 8j8-b Multijet (=5-jet data) tt ql, ll W lν + jets Other pmssm benchmark -step benchmark Data / Prediction / Events / 4 GeV / E T / H T [GeV ] Data s = TeV,. fb Total background SR 8j8-b Multijet (=5-jet data) tt ql, ll W lν + jets Other pmssm benchmark -step benchmark / Data / Prediction Events / 4 GeV / E T / H T [GeV ] Data s = TeV,. fb Total background SR 8j8-b Multijet (=5-jet data) tt ql, ll W lν + jets Other pmssm benchmark -step benchmark Data / Prediction / / [GeV ] / / [GeV ] / / [GeV ] E T H T Data / Prediction - E T H T Data / Prediction E T H T

37 DIS 6, Hamburg / April 6 / Geert-Jan Besjes Multijets: signal region background composition arxiv:6.694 (SUSY-5-7) 4.6 ±.9.9 ±.8. ±.9 jets SR s = TeV,. fb 9. ± ±.6 4. ±.5 ± 6 4 ± 5 ± 4 Multijet (=6-jet data) 8 jets SR 7 jets SR 7 ± 4 5 ± ± 5 s 9 jets SR 8 jets SR = TeV,. fb Multijet (=5-jet data) tt Single 89 ± Top 6 8 ± 67 ± W lν + jets Z νν, ll + jets diboson tt Single Top W lν + jets Z νν, ll + jets diboson tt+x tt+x b-jets b-jet b-jets b-jets b-jet b-jets Jet p T > 8 GeV Jet p T > 5 GeV 7

38 DIS 6, Hamburg / April 6 / Geert-Jan Besjes Multijets: results table arxiv:6.694 (SUSY-5-7) Signal region Fitted background Multijet Leptonic Total Obs events 8j5 9. ± ± 5 89 ± j5-b 76.7 ±.7 6 ± 8 ± 97 8j5-b.8 ±. ± 67 ± 9 9j5 6.8 ±..8 ± ± j5-b.5 ±.. ± ± 5. 9j5-b 6.4 ± ±.. ±.6 9 j5.6 ±.6.99 ± ±.87 6 j5-b.4 ±.6.44 ± ±.79 j5-b.4 ±.87.8 ±.7. ±.94 7j8 4. ± 5. ± 7 ± 4 7 7j8-b 9. ±.4.8 ± 5 ± 4 7j8-b.5 ±.6. ± 5..5 ± j8 4.5 ± ±. 9. ±.9 8 8j8-b.9 ±.5.8 ±. 7.6 ±.6 4 8j8-b.7 ±.9. ±. 4. ±.5 8

39 DIS 6, Hamburg / April 6 / Geert-Jan Besjes Multijets: 8-jet candidate event in 8j8 arxiv:6.694 (SUSY-5-7) 9

40 DIS 6, Hamburg / April 6 / Geert-Jan Besjes Multijets: limit plots arxiv:6.694 (SUSY-5-7) ) [GeV] ± m(χ ~ pmssm: M =6 GeV, tanβ=, µ<, M = TeV, m( q) 5 ~ TeV, m( l) 5 TeV ) [GeV] m(χ ~ g - ~ g, ~ g ± ± qqwzχ ; m(χ )=[m( ~ g)+m(χ )]/, m(χ )=[m(χ )+m(χ )]/ Expected (± σ exp ) SUSY Observed (± σ ) theory 8 TeV,. fb Multijets + E T s= TeV,. fb Combined All limits 95% CL 5 4 Multijets + E T s= TeV,. fb Combined All limits 95% CL Expected (± σ exp ) SUSY Observed (± σ ) theory m( ~ g) [GeV] m( ~ g) [GeV] 4

41 DIS 6, Hamburg / April 6 / Geert-Jan Besjes Multijets: limit plots per signal region arxiv:6.694 (SUSY-5-7) ) [GeV] ± m(χ b-jets b-jets b-jets 8j5 9j5 j5 7j8 8j8 ) [GeV] m(χ b-jets b-jets b-jets 8j5 9j5 j5 7j8 8j m( ~ g) [GeV] m( ~ g) [GeV] 4

42 leptons + b-jets -CONF-5-66 DIS 6, Hamburg / April 6 / Geert-Jan Besjes

43 DIS 6, Hamburg / April 6 / Geert-Jan Besjes b-jets: signal region definitions -CONF-5-66 Variable SRA SRB Event cleaning Common to all SR Lepton veto No e/µ with p T > GeV after overlap removal ET > 5 GeV > 4 GeV Leading jet p T (j ) > GeV > GeV nd jet p T (j ) > 5 GeV > 5 GeV Fourth jet p T (j 4 ) vetoed if > 5 GeV j min >.4 >.4 (j, ) - >.5 b-tagging j and j j and (j or j 4 ) ET /m e >.5 >.5 m CT > 5, 5, 45 GeV - m bb > GeV - 4

44 DIS 6, Hamburg / April 6 / Geert-Jan Besjes b-jets: control region definitions -CONF-5-66 Variable CRzA CRttA CRstA CRwA CRzB CRttB Number of lep. SFOS SFOS Lead. lep. p T [GeV] > 6 > 6 > 6 > 6 > 6 > 6 nd lep. p T [GeV] > > - m`` [GeV] [76 6] [76 6] - m T [GeV] > - - Lead. jet p T (j ) [GeV] - > - > 5 4th jet p T (j 4 ) vetoed if > 5 GeV b-tagged jets j and j j and j j and j j j and j and (j or j 4 ) (j or j 4 ) ET [GeV] < > > > < 7 > E,cor T [GeV] > > - m bb [GeV] - < > (m bj ) > - - m CT [GeV] > 5 > 5 > 5 > m min b` [GeV] - - > (j, ET ) >. >.5 44

45 DIS 6, Hamburg / April 6 / Geert-Jan Besjes b-jets: control region results -CONF-5-66 Events / 5 GeV Data / SM Preliminary - s= TeV,. fb Data SM total tt Single top Others W + jets Z + jets CRzA [GeV] m CT Events / GeV Data / SM 4 Preliminary - s= TeV,. fb Data SM total tt Single top Others W + jets Z + jets CRttB 4 leading 5 jet [GeV] 6 p T 45

46 DIS 6, Hamburg / April 6 / Geert-Jan Besjes b-jets: signal region results Events / 5 GeV Data / SM 45 4 Preliminary Data Preliminary Data - s= TeV,. fb SM total - s= TeV,. fb SM total tt tt 5 Single top 5 Single top Others Others W + jets W + jets Z + ~ jets m( b)=7, m( χ Z + ~ jets )= m( b)=4, m( χ )= 5 SRA5 5 SRB m [GeV] E [GeV] [GeV] m CT Events / 5 GeV Data / SM E 55 [GeV] 6 -CONF-5-66 T T Events / 5 GeV Preliminary - s= TeV,. fb Data SM total tt Single top Others W + jets Z + ~ jets m( b)=7, m( χ )= SRA5 Events / 5 GeV 5 4 Preliminary - s= TeV,. fb SRB Data SM total tt Single top Others W + jets Z + ~ jets m( b)=4, m( χ )= 5 46 Data / SM [GeV] m bb Data / SM p leading jet [GeV] T

47 DIS 6, Hamburg / April 6 / Geert-Jan Besjes b-jets: results table (control regions) -CONF-5-66 CR CRzA CRwA CRttA CRstA CRzB CRttB Observed events Fitted bkg events 84 ± 9 54 ± 55 ± 6 54 ± 7 55 ± 7 8 ± Fitted t t events 4.7 ±.4 ± 9 69 ± 5 8. ±.8 4 ± 4 5 ± 5 Fitted single top events.4 ±.4 49 ± 5 7 ± ± 8.4 ±. 6.8 ±.9 Fitted W+jets events - 5 ± 47 5 ± 7 ± ± 4.9 Fitted Z+jets events 75 ± 9 5. ±.6. ±.5-4 ± 8. ±. Fitted Other events.6 ±..7 ±. 4.4 ±.9.8 ±.4 -. ±.6 MC exp. SM events MC exp. t t events MC exp. single top events MC exp. W+jets events MC exp. Z+jets events MC exp. Other events

48 DIS 6, Hamburg / April 6 / Geert-Jan Besjes b-jets: results table (signal regions) -CONF-5-66 method to estimate the Z jets background for SRA. Signal region channels SRA5 SRA5 SRA45 SRB Observed events 6 5 Fitted bkg events 4 ± ±.6. ±.6. ±. Fitted t t events.9 ±.4.7 ±.6.6 ±. 5.9 ±.4 Fitted single top events. ±..54 ±.7.5 ±.. ±.8 Fitted W+jets events 6. ±.4. ±.6.4 ±.. ±.6 Fitted Z+jets events ± 7 7. ±.4.5 ±.5. ±.4 (Alt. method Z+jets events) ( ± 7) (7. ±.9) (.7 ±.9) Fitted Other events.7 ±.6. ±.. ±..4 ±.4 MC exp. SM events MC exp. t t events MC exp. single top events MC exp. W+jets events MC exp. Z+jets events MC exp. Other events

49 DIS 6, Hamburg / April 6 / Geert-Jan Besjes b-jets: limit plots -CONF-5-66 [GeV] χ m ~ Bottom squark pair production, b Preliminary - s= TeV,. fb All limits at 95% CL b χ Observed limit (± σ - E + b-jets,. fb, T SUSY theory Expected limit (± σ exp ) s=8 TeV ) 5 4 Best SR ~ b b χ forbidden - monojet,. fb, s=8 TeV [GeV] m~ b

50 or leptons + + b-jets -CONF-5-67 DIS 6, Hamburg / April 6 / Geert-Jan Besjes

51 DIS 6, Hamburg / April 6 / Geert-Jan Besjes / lepton, + b-jets: signal and control regions (Gbb) -CONF-5-67 Criteria common to all Gbb regions: 4 signal jets, b-jets Variable Signal region Control region Validation region Criteria common to all regions of the same type Region A (Large mass splitting) Region B (Moderate mass splitting) Region C (Small mass splitting) Lepton Candidate veto = signal Candidate veto m b 4j min >.4 >.4 jets T,min < 6 m T < 5 p T jet > 9 > 9 > 9 E T > 5 > 5 > 5 m 4j e > 6 > < 4 p T jet > 9 > 9 > 9 E T > 45 > > m 4j e > 4 > < 4 p T jet > > > E T > 5 > 4 > 4 m 4j e > 4 > < 4 5

52 DIS 6, Hamburg / April 6 / Geert-Jan Besjes / lepton, + b-jets: signal and control regions (Gtt -lep) -CONF-5-67 Criteria common to all Gtt -lepton regions: p T jet > GeV Variable Signal region Control region VRL VRL Criteria common to all regions of the same type Region A (Large mass splitting) Region B (Moderate mass splitting) Region C (Small mass splitting) Lepton signal = signal = signal signal m b 4j min >.4 >.4 N jet jets T,min > 8 > 8 < 8 m T < 5 < 5 E T > 4 > 5 > 5 > m incl e > 7 > 5 > 5 > 4 N b jet N top E T > 5 > > > m incl e > 5 > > > N b jet N top E T > 5 > > > m incl e > 5 > > > 5 N b jet

53 DIS 6, Hamburg / April 6 / Geert-Jan Besjes / lepton, + b-jets: signal and control regions (Gtt -lep) -CONF-5-67 Criteria common to all Gtt -lepton regions: Criteria common to all regions of the same type signal lepton, p T jet > GeV Variable Signal region Control region VR-m T VR-m b jets T,min m T > 5 < 5 > 5 < 5 N jet N b jet = = Region A (Large mass splitting) Region B (Moderate to small mass splitting) E T > > > > m incl e > > > 6 > 6 m b jets T,min > 6 < 6 > 4 N top E T > > > > m incl e > 9 > 9 > 6 > 6 m b jets T,min > 6 < 6 > 6 5

54 DIS 6, Hamburg / April 6 / Geert-Jan Besjes / lepton, + b-jets: preselection results (Gbb) -CONF-5-67 Events 6 Preliminary s = TeV,. fb Gbb pre-selection Gbb: m ~, m = 7, (σ ) g χ Gbb: m ~, m = 4, 8 (σ ) g χ Data 5 Total background tt Single top tt + W/Z/h Z+jets W+jets Diboson Events / 5 GeV 5 Preliminary 4 - s = TeV,. fb Gbb pre-selection Gbb: m ~, m = 7, (σ ) g χ Gbb: m ~, m = 4, 8 (σ ) g χ Data 5 Total background tt Single top tt + W/Z/h Z+jets W+jets Diboson Data / SM Number of b-jets with p > GeV T Data / SM [GeV] E T 54

55 DIS 6, Hamburg / April 6 / Geert-Jan Besjes / lepton, + b-jets: preselection results (Gtt -lep) -CONF-5-67 Events Preliminary - s = TeV,. fb Gtt -lepton pre-selection Gtt: m ~, m = 6, (σ ) g χ Gtt: m ~, m = 4, 8 (σ ) g χ Data 5 Total background tt Single top tt + W/Z/h Z+jets W+jets Diboson Events / 5 GeV 5 4 Preliminary - s = TeV,. fb Gtt -lepton pre-selection Gtt: m ~, m = 6, (σ ) g χ Gtt: m ~, m = 4, 8 (σ ) g χ Data 5 Total background tt Single top tt + W/Z/h Z+jets W+jets Diboson Data / SM 4 Number of top-tagged jets Data / SM (b-jets,e ) [GeV] min m T T 55

56 DIS 6, Hamburg / April 6 / Geert-Jan Besjes / lepton, + b-jets: preselection results (Gtt -lep) -CONF-5-67 Events / 5 GeV 5 4 Preliminary - s = TeV,. fb Gtt -lepton pre-selection Gtt: m ~, m = 6, (σ ) g χ Gtt: m ~, m = 4, 8 (σ ) g χ Data 5 Total background tt Single top tt + W/Z/h Z+jets W+jets Diboson Events / GeV 5 4 Preliminary - s = TeV,. fb Gtt -lepton pre-selection Gtt: m ~, m = 6, (σ ) g χ Gtt: m ~, m = 4, 8 (σ ) g χ Data 5 Total background tt Single top tt + W/Z/h Z+jets W+jets Diboson Data / SM incl [GeV] (lepton,e ) [GeV] m T T Data / SM [GeV] incl m eff m eff 56

57 DIS 6, Hamburg / April 6 / Geert-Jan Besjes / lepton, + b-jets: validation region results -CONF-5-67 Events 7 Data 5 Total background Preliminary tt Single top 6 - tt + W/Z/h Z+jets s= TeV,. fb W+jets Diboson n pred ) / σ tot (n obs V V V V V b-jets V VR-m T,min -Gtt-L-B V VR-m T -Gtt-L-B b-jets V VR-m T,min -Gtt-L-A V VR-m T -Gtt-L-A V VRL-Gtt-L-C V VRL-Gtt-L-C V VRL-Gtt-L-B VRL-Gtt-L-B VRL-Gtt-L-A VRL-Gtt-L-A VR-Gbb-C VR-Gbb-B VR-Gbb-A V 57

58 DIS 6, Hamburg / April 6 / Geert-Jan Besjes Events/ 5 GeV / lepton, + b-jets: signal region results Preliminary - s = TeV,. fb SR-Gbb-B SR Data 5 Total background tt Single top tt + W/Z/h Z+jets W+jets Diboson Gbb: m ~, m = 7, g χ Gbb: m ~, m = 4, 8 g χ E T [GeV] Events/ 5 GeV Events/ 5 GeV Preliminary - s = TeV,. fb SR-Gtt-L-C SR Data 5 Total background tt Single top tt + W/Z/h Z+jets W+jets Diboson Gtt: m ~, m = 6, g χ Gtt: m ~, m = 4, 8 g χ Preliminary - s = TeV,. fb SR-Gtt-L-A -CONF-5-67 Data 5 E Total background T tt Single top tt + W/Z/h Z+jets W+jets Diboson Gtt: m ~, m = 6, g χ Gtt: m ~, m = 4, 8 g χ [GeV] E T [GeV]

59 DIS 6, Hamburg / April 6 / Geert-Jan Besjes / lepton, + b-jets: signal region results (Gbb) -CONF-5-67 SR-Gbb-A SR-Gbb-B SR-Gbb-C Observed events 5 Fitted background events.4 ±.7.5 ± ±.4 t t.7 ±.5.8 ±..9 ±. Z+jets.5 ±.6.5 ±..4 ±.6 W +jets.9 ±..5 ±.6.95 ±.4 Single-top. ±..6 ±.5.67 ±. t tw, t tz, t th, t tt t <. <..8 ±. Diboson <..4 ±.5 MC-only prediction µ t t.7 ±..9 ±.4. ±.4 59

60 DIS 6, Hamburg / April 6 / Geert-Jan Besjes / lepton, + b-jets: signal region results (Gtt) -CONF-5-67 SR-Gtt-l-A SR-Gtt-L-B SR-Gtt-L-C Observed events Fitted background events. ±.7.8 ±.7. ±.7 t t. ±.6. ±.6.4 ±.7 Z+jets.4 ±.7. ±..6 ±.9 W +jets. ±.4.5 ±.6. ±. Single-top.4 ±.6.5 ±..8 ±.6 t tw, t tz, t th, t tt t <.. ±.6. ±.6 Diboson <. <..8 ±.8 MC-only prediction µ t t. ±.4.7 ±.7.4 ±.6 6 SR-Gtt-L-A SR-Gtt-L-B Observed events Fitted background events. ±.4. ±.6 t t.9 ±..8 ±.5 Z+jets W +jets <. <. Single-top.9 ±.5.5 ±. t tw, t tz, t th, t tt t.8 ±..8 ±. Diboson MC-only prediction.. µ t t. ±..9 ±.

61 DIS 6, Hamburg / April 6 / Geert-Jan Besjes / lepton, + b-jets: limit plots -CONF-5-67 [GeV] m χ 6 4 ~ ~ gg ~ ~ ~ production, g bb+ χ, m( q) >> m( g) s= TeV,. fb m~ < m g χ + m b Preliminary - 8 TeV,. fb [GeV] - Expected limit (± σ exp ) Observed limit (± σ All limits at 95% CL m χ SUSY theory ) 6 4 ~ ~ gg ~ ~ ~ production, g tt+ χ, m( q) >> m( g) s= TeV,. fb Preliminary - 8 TeV,. fb - Expected limit (± σ exp ) Observed limit (± σ All limits at 95% CL SUSY theory ) g m~ < m χ + m t [GeV] m~ g m~ g [GeV] 6