Searches for Higgs bosons and New Physics at the Tevatron
|
|
- Maximillian Gordon
- 5 years ago
- Views:
Transcription
1 Searches for Higgs bosons and New Physics at the Tevatron Volker Büscher Universität Bonn DESY Seminar, March 8/9, 008 Indirect constraints from precision measurements The SM Higgs boson MSSM Higgs bosons Supersymmetry: Squarks, Gluinos, Charginos Heavy Resonances Full set of Tevatron results available at:
2 The Tevatron Collider Proton Antiproton Collider Centre-of-mass energy:.96 TeV Integrated Luminosity: 3.8 fb so far Peak luminosity:.8 3 cm s Expecting to accumulate 6-9 fb by 009/ p ABORT MAIN INJECTOR (MI) _ p p (50 GeV) & RECYCLER (8 GeV) _ p SOURCE: DEBUNCHER (8 GeV) & ACCUMULATOR (8 GeV) 8 GeV INJ P8 A P P P3 F0 0 GeV p RF 50 GeV _ INJ 50 GeV p INJ LINAC (400 MeV) PRE-ACC BOOSTER (8 GeV) A0 TeV EXTRACTION COLLIDER ABORTS S TEVATRON EXTRACTION for FIXED TARGET EXPERIMENTS CDF DETECTOR & LOW BETA W E SWITCHYARD B0 N TEVATRON E0 p ( TeV) _ p ( TeV) C0 DO DETECTOR & LOW BETA _ p ABORT D0 Electron Cooling in operation
3 The Tevatron Collider Proton Antiproton Collider Centre-of-mass energy:.96 TeV Integrated Luminosity: 3.8 fb so far Peak luminosity:.8 3 cm s Expecting to accumulate 6-9 fb by 009/ p ABORT MAIN INJECTOR (MI) _ p p (50 GeV) & RECYCLER (8 GeV) TEVATRON _ p SOURCE: DEBUNCHER (8 GeV) & ACCUMULATOR (8 GeV) 8 GeV INJ P8 A P P P3 F0 0 GeV p RF 50 GeV _ INJ 50 GeV p INJ E0 LINAC (400 MeV) PRE-ACC BOOSTER (8 GeV) A0 TeV EXTRACTION COLLIDER ABORTS p ( TeV) _ p ( TeV) S TEVATRON EXTRACTION for FIXED TARGET EXPERIMENTS CDF DETECTOR & LOW BETA C0 W E SWITCHYARD B0 N DO DETECTOR & LOW BETA _ p ABORT D0 Electron Cooling in operation
4 Physics at Hadron Colliders Tevatron: Proton-Antiproton Collider at s=.96 TeV, collisions every 396 ns Advantage: High centre-of-mass energy production of massive particles (LEP: m < 0 GeV) Disadvantage: Strong Interaction huge event rates for jet production multiple interactions per crossing complicated final states: particles from fragmentation of p/ p remnants gluon radiation jets Spectators/ULE p p f (x ) i f (x ) j p x p x σ^ ij (x x ) Hadronisation incoming hadrons hard interaction parton shower
5 The Tevatron Experiments µ PDTs µ Scintillation Counters Two General-Purpose Detectors: CDF DØ Electron acceptance η <.0 η < 3.0 Muon acceptance η <.5 η <.0 Silicon Precision tracking η <.0 η < 3.0 Hermetic Calorimeter η < 3.6 η < 4. Powerful trigger systems (.5 MHz 0 Hz) Dilepton triggers starting at p T > 4 GeV Jets+ E T triggers with E T > 5 GeV µ MDTs Calorimeter Tracking Superconducting Detectors Coil Toroid CFT Shielding CPS FPS Si Barrels F Disks H Disks
6 The Tevatron Experiments Dataset fb recorded by DØ + CDF Most results presented here based on fb
7 Pinning down EWSB at the Tevatron Standard Model relates m H, m t, m W via radiative corrections: m W [GeV] March % CL H W/Z W/Z LEP and Tevatron (prel.) LEP and SLD 80.3 α m H [GeV] m t [GeV] Indirect constraints on Higgs boson mass: t W W m top b H March 008 W/Z W/Z ln m H m W χ m H = GeV and m H < 60 GeV at 95% C.L Theory uncertainty α had = α (5) ± ±0.000 incl. low Q data Excluded Preliminary m H [GeV] m Limit = 60 GeV
8 Pinning down EWSB at the Tevatron Combined top mass measurement from CDF+DØ: m t = 7.6±0.8(stat)±.(syst) GeV New CDF W mass measurement (00 pb ): m W = 80.43±0.048 GeV new world average: m W = ±0.05 GeV m W [GeV] LEP and SLD LEP and Tevatron (prel.) 68% CL ? Projected uncertainties for 8 fb : m t : ±. GeV m W : ±5-0 MeV 80.3 α m H [GeV] m t [GeV]
9 Search for Higgs Bosons Production and Decay Production Cross-Sections Branching Ratios bb WW ZZ gg > H τ + τ Hqq bbh WH ZH BR(H) cc gg tt Light Higgs bosons (m H < 35 GeV): q V q H V Heavy Higgs bosons (m H > 35 GeV): g g t t t H tth 3 Dominant decay mode: H b b Production: in association with W,Z γγ Zγ M H [GeV] leptonic W,Z-decays provide best signature b-tagging to suppress background from W/Z+jets Dominant decay mode: H WW Production: Gluon-Gluon Fusion relatively high cross-section clean -lepton+ E T signature via H WW lνlν
10 Search for low-mass Higgs Boson For best sensitivity, need to combine many channels: WH lνb b, ZH ν νb b, ZH l + l b b (with l=e,µ) Challenge: very low signal rates, massive backgrounds from V+jets First step: select events consistent with W/Z+ jets Events L =.7 fb DØ Preliminary W + jets Data W + jets 000 QCD SM bkgd W Transverse Mass (GeV)
11 Search for low-mass Higgs Boson Second step: b-tagging Exploiting B-meson lifetime, mass and decay modes to separate b- from light-quark jets: impact parameter secondary vertices vertex mass vertex track multiplicity soft leptons Similar strategies in both experiments: use neural networks for optimal combination of tagging information use several NN operating points to define channels with high/low s/b: tight b-tag (low s/b, single tag ), loose b-tags (high s/b, double tag )
12 Search for low-mass Higgs Boson Backgrounds dominated by W/Z+bb, t t Main handle: invariant mass of two b-jets Events 3 - L =.7 fb DØ Preliminary W + jets / b-tag Data W + jets QCD tt Wbb other WH 5 GeV (x) Events 3 - L =.7 fb DØ Preliminary W + jets / b-tags Data W + jets QCD tt Wbb other WH 5 GeV (x) Dijet Mass (GeV) Dijet Mass (GeV)
13 Search for low-mass Higgs Boson For optimal separation power, use neural networks: Events 3 - L =.7 fb DØ Preliminary W + jets / b-tags Data W + jets QCD tt Wbb other WH 5 GeV (x) Number of events CDF Run II Preliminary (.9 fb ) 8 Data W+HF Mistag tt (6.7pb),Single top Diboson NonW Higgs (0 GeV) Background error NN output - tags NNop6Higgs0 Note: signal-to-background ratios are at most -0% need full combination of all channels to reach sensitivity need to control systematics at a level %! Main concern: modeling of V+jets backgrounds shapes: from MC (alpgen, MCFM, CKKW) normalisation: combination of (N)NLO cross-sections and sideband-fitting
14 New channels added for Winter 008 DØ: H γγ γ CDF: H+jj with H ττ q q H t t t γ W/Z W/Z q q H - DØ,.7 fb preliminary τ τ + lep had jet CDF Run II Preliminary Events/5 GeV 3 data QCD γγ γj jj Z/γ*->ee signal(m=30gev) N of Events SM Higgs: WH+ZH+VBF+ggH - Data (L =.0 fb ) Total Background Z ττ+jets SM Higgs(0) M γ γ (GeV) Expected Limit: 40 x σ SM (m H =0 GeV) Full ττ Mass [GeV/c Expected Limit: 5 x σ SM (m H =0 GeV) ]
15 Search for high-mass Higgs Boson: H WW Main irreducible background: WW lνlν Additional information: angular correlations exploiting spin of Higgs boson Charged leptons from Higgs decay tend to have small opening angle Φ Events / CDF Run II Preliminary m H (60) data WW WZ ZZ - L dt =. fb tt Wγ W+jets DY R leptons For best sensitivity, use multivariate techniques
16 Search for high-mass Higgs Boson: H WW For each event, use full kinematic information x obs to calculate probabilities that event comes from signal (P H ) and background (P B ): P H/B (x obs ) = dy n true σ σtheory H/B (y true) ǫ(y true ) G(x obs, y true ) H/B Then calculate likelihood ratio P H P H +P B for optimal separation of signal and background: Events / m H (60) data WW WZ ZZ tt Wγ W+jets DY 0 80 CDF Run II Preliminary Events / L dt =.9 fb LR (H WW, high S/B) LR (H WW, high S/B)
17 Search for high-mass Higgs Boson: H WW For each event, use full kinematic information x obs to calculate probabilities that event comes from signal (P H ) and background (P B ): P H/B (x obs ) = dy n true σ σtheory H/B (y true) ǫ(y true ) G(x obs, y true ) H/B Then calculate likelihood ratio P H P H +P B for optimal separation of signal and background Finally, combine with other kinematic variables in a neural network: CDF Run II Preliminary HWW ME+NN M H = 60 [GeV/c ] - L =.4 fb High S/B HWW Wj Wγ tt WZ ZZ DY WW Data events DØ Run IIb Preliminary e mu L=./fb data H 60 WW Z + jets Diboson W + jets/γ - - QCD - ttbarincl NN Output NN
18 Tevatron Full Combination Massive exercise in advanced statistics currently combining 8 different channels full distributions of final variables are analyzed 8 NN/LR/Mass distributions Events / CDF Run II Preliminary L dt =.9 fb m H (60) 40 data tt WW Wγ Events / WZ ZZ W+jets DY LR (H WW, high S/B) Events 3 - L =.7 fb DØ Preliminary W + jets / b-tags Data W + jets QCD tt Wbb other WH 5 GeV (x) Number of events CDF Run II Preliminary (.7 fb ) Data W+HF Mistag tt (6.7pb),Single top Diboson NonW Higgs (0 GeV) Background error Number of Events / DØ Preliminary Data QCD Z+jets Z+bb(cc) tt WZ ZZ ZH 5 Number of Events CDF II Preliminary Ldt = fb Data - Double Tag Standard Model Backgrounds ZH llbb X (M H = 0 GeV/c ) LR (H WW, high S/B) NN output - tags NNopHiggs Neural Network output NN Projected Slice (Z+jets vs ZH) > 50 different sources of systematic uncertainties are considered taking into account correlations bin-to-bin and channel-to-channel >50 300x300 covariance matrices... Systematic uncertainties need to be constrained in sidebands very complicated procedure... used several techniques (Bayesian, mod. frequentist) and 4 independent programs to cross-check calculations results agree within %
19 Tevatron Full Combination 95% CL Limit/SM LEP Limit Tevatron Run II Preliminary, L=.0-.4 fb - Tevatron Expected Tevatron Observed ±σ CDF Exp ±σ D Exp SM March, m H (GeV/c ) Sensitivity improvement still scaling faster than luminosity Exciting times are ahead!
20 Tevatron Full Combination Sensitivity improvement still scaling faster than luminosity Exciting times are ahead!
21 Beyond the Standard Model Strong hint for new physics: The hierarchy problem fermion loop corrections to Higgs mass are divergent Higgs mass should be of the order of the cutoff scale Λ (e.g. M Planck ) f H H MH = N λ [ f f 8π Λ + 6m f log Λ m m f f] + O(/Λ ) f in contradiction to indirect evidence for a light SM Higgs boson there must be something beyond the SM that modifies these corrections Two main options:. New physics at O( TeV) loop corrections stay reasonably small. New symmetry that suppresses loop corrections Most straightforward way: cancel fermion loops with boson loops f H H + f Cancellation exact for equal couplings and mass Ås H H =0
22 Supersymmetry The idea: particle physics is symmetric under transformation fermion boson implies one supersymmetric partner for each SM particle Superpartners are heavy SUSY must be broken Details of SUSY breaking mechanism unknown need to consider several models: gravity-, gauge-, anomaly-mediated breaking Predictions: Many new SUSY particles: Charginos/Neutralinos/Gluinos, Squarks, Sleptons Extended Higgs sector: 5 physical Higgs bosons h,h,a,h ± Mass (ev) h Z W τ µ t b c s d Mass (ev) ± H H,A h χ ± χ ± g ~, χ 0 χ 0 3 4, χ 0 χ 0 ~ l L ~ l R τ τ q ~, q ~ L R ~ t b ~ b ~ ~ t ν L 6 u e Particle Spectrum Particle Spectrum
23 M W vs. m t for SM vs. MSSM experimental errors 68% CL: LEP/Tevatron (today) light SUSY M W [GeV] M H = 4 GeV SM M H = 400 GeV SM MSSM both models MSSM heavy SUSY Heinemeyer, Hollik, Stockinger, Weber, Weiglein m t [GeV] Supersymmetric theories predict additional particles that modify loop corrections Lightest MSSM Higgs boson: m h < 35 GeV
24 Blue Band Plot for SM vs. MSSM 4 O. Buchmueller et al., arxiv: LEP excluded Adding constraints from CDM, b sγ etc. allows prediction of m h in MSSM: m h = + 8 (exp) ±3 (theo) GeV
25 Search for SUSY Higgs g b Important: Higgs-b b-coupling depends on tanβ Φ large cross-sections for Higgs production at high tanβ «g g Additional search channels at high tanβ: associated production with bb: bbφ with Φ bb,ττ b b Φ b τ enhanced gluon fusion cross-section: gg Φ ττ b g τ 3 σ [fb] SM Higgs production cross sections gg h qq Wh qq qqh bb h gg,qq tth TeV4LHC Higgs working group TeV II qq Zh m h [GeV] Φ production cross section [fb] MSSM Higgs Production cross sections Tevatron, s =.96 TeV m h max, tanβ = 40 W/ZΦ qqφ ggφ ttφ M Φ [GeV] h H A (bb)φ
26 Search for SUSY Higgs: Φ ττ Selections: A) two isolated taus with one leptonic tau decay B) isolated electron and muon Irreducible background from Z τ + τ Reconstruction of effective mass from visible tau decay products and E T Summer 006 Events / GeV 3 - DØ 35 pb τ e/µ τ had Selection Data Φ ττ (50 GeV) Z τ τ QCD W, Z ee, µµ Di-boson Events / GeV DØ 35 pb τ e τ µ Selection - Data Φ ττ (50 GeV) Z τ τ QCD W, Z ee, µµ Di-boson M vis [GeV] M vis [GeV]
27 Search for SUSY Higgs: Φ ττ January 007: new CDF results with fb m vis (GeV) - σ(pp φx) x BR(φ ττ) (pb) 0 0. Expected σ band σ band 95% CL upper limits CDF Run II fb - MSSM Higgs ττ Search Preliminary Observed mφ (GeV) σ excess at m A 50 GeV would correspond to tanβ 50 confirmed by DØ?
28 Search for SUSY Higgs: Φ ττ February 007: new DØ results with fb * Br(φ ττ) (pb) 95% limit σ D - Preliminary,.0 fb Observed Limit Expected Limit Expected Limit, ±σ (a) Higgs Mass (GeV) unfortunately no confirmation of signal
29 Search for SUSY Higgs: Φ ττ October 007: new CDF results with.8 fb 00 τ e τ had + τ µ τ had channels m φ (GeV/c ) 00 0 CDF Run II.8 fb - MSSM φ ττ Search Preliminary m A = 40 GeV - ττ) (pb) BR(φ +X) σ(p p φ MSSM Higgs 0 0. ττsearch, 95% CL Upper Limit CDF Run II Preliminary,.8 fb - Observed Expected σ band σ band m A (GeV/c ) Excess is gone m φ (GeV/c )
30 Search for SUSY Higgs: Φ ττ Interpretation within MSSM: limits on tanβ as a function of m A based on DØ fb µτ h, CDF.8 fb µτ h, eτ h, eµ limits from bbh channels currently not competitive no Tevatron combination yet benchmark scenarios: no-mixing and mhmax tanβ µ<0 no mixing LEP m h max DØ m A (GeV/c ) no mixing CDF Tevatron Preliminary MSSM Higgs ττ 95% CL Exclusion DØ (.0 fb - ) CDF (.8 fb - ) Expect to reach sensitivity to tanβ 0 with full Run II dataset In addition: expect to probe large m A with WH/ZH channels
31 Search for Supersymmetry Squarks/Gluinos q q q g g g g q q Æg q g q q q Squarks/Gluinos produced via strong interaction large cross sections at hadron colliders q q qq + E T Decays: jets + LSP LSP assumed to be stable (R p conserved) Signature: jets + E T Data collected with dedicated triggers: acoplanar jets + E T LSP LSP MET Mass region Main Channel Signature m q < m g q q j + E T m q > m g g g 4j + E T m q m g q q, q g 3j + E T Dijet Background MET 3-jet Background
32 Search for Supersymmetry Squarks/Gluinos j+ E T analysis 3j+ E T analysis Events / 0 GeV (a) - DØ, L=. fb Data SM Background Fitted QCD SUSY Events / 0 GeV 3 (b) - DØ, L=. fb Data SM Background Fitted QCD SUSY Main backgrounds: E T (GeV) q ν Main selection cuts: E T (GeV) Multijets with fake E T W+jets with W eν, µν, τν Z+jets with Z ν ν q Z ν /3/4 jets and large E T angular separation E T, jets isolated lepton veto Mass region Main Channel Signature E T H T = p jet T Exp. Bckgd. Data m q < m g q q j + E T >5 GeV >35 GeV ±3 m q > m g g g 4j + E T >0 GeV >400 GeV 8±5 0 m q m g q q, q g 3j + E T >75 GeV >375 GeV ±3 9
33 Search for Supersymmetry Squarks/Gluinos ( E T =368 GeV, p j T q q candidate event =8 GeV, pj T =74 GeV) Gluino Squark Mass (GeV) No evidence for squark/gluino production at the Tevatron UA UA DØ IA CDF IB DØ II DØ IB Mass (GeV) - DØ, L=. fb tanβ=3, A =0, µ <0 0 New limits in squark/gluino mass plane (msugra: tanβ=3, A 0 = 0, µ < 0) Sensitivity beyond indirect limits from LEP LEP LEP ± χ LEP ~ ± l no msugra solution
34 What other particles does SUSY predict? Mass (ev) ± H H,A χ ± g ~, χ 0 χ q ~, q ~ L R ~ t b ~ b ~ ~ t χ ±, χ 0 ~ l L τ ν L h χ 0 ~ l R τ Particle Spectrum
35 Search for Charginos and Neutralinos Production cross section (electroweak) relatively small need clean leptonic signature to suppress backgrounds q χ 0 l ± Golden channel: χ ± χ 0 3l + E T Experimental Challenge: low-p T leptons need multilepton triggers with low thresholds need efficient lepton identification at low p T W q χ ± χ 0 W Z ν l + l χ rd lepton M(slepton) = 6 GeV M(neutralino) = GeV M(chargino) = 6 GeV next-to-leading lepton leading lepton PT lepton (generator level) (GeV)
36 Search for Charginos and Neutralinos Analysis Strategy: two identified leptons plus isolated track isolation criteria designed to be efficient for electrons, muons and hadronic τ-decays Transverse momentum thresholds (DØ): p l T p l3 T Selection p l T eel > GeV >8 GeV >4 GeV eµl > GeV >8 GeV >5 GeV µµl > GeV >8 GeV >4 GeV ls-µµ > GeV >5 GeV Hollow Isolation Cone Events / GeV DØ, 30 pb eel selection Data * Z/γ QCD W + jet / γ WW,WZ,ZZ tt SUSY l3 (GeV) p T Electron Muon Tau Jet
37 Search for Charginos and Neutralinos DØ Results (0.9.7 fb ): CDF Results ( fb ): Selection Expected Background Observed Signal (m χ ±= GeV) eel.8± ±0.4 eµl 0.9± ±0. µµl 0.3±0.8.5±0. ls-µµ.±0.4 4.±0.7 Combined 4.± ±0.8 (t=tight,l=loose) 3t t,l t,l t+trk t,l+trk Expected Background 0.5±0. 0.5± ± ±0.7.3±0.6 Observed Signal (m χ ±=0 GeV).3±0.3.6±0. 0.7±0. 4.4±0.7.4±0.4 No evidence for chargino/neutralino production Limits on product of cross section and leptonic branching fraction
38 Search for Charginos and Neutralinos ) BR(3l) (pb) 0 χ ± σ(χ LEP 0. heavy-squarks 3l-max - DØ Run II Preliminary, fb ~ M(χ ± ) M(χ 0 ) M(χ 0 ); M( l)>m(χ 0 ) tanβ=3, µ>0, no slepton mixing Observed Limit Expected Limit 0. large-m Chargino Mass (GeV) Limits constrain SUSY beyond LEP chargino limits: 3l-max scenario: m χ ± > 45 GeV Updates with 3 fb datasets currently in progress
39 Search for Charginos and Neutralinos ) BR(3l) (pb) χ 0 σ(χ ± - LEP 3l-max large-m fb Search for -.0 fb ± 0 χ χ 0 3l+X ± ~ l)>m(χ 0 ) M(χ 0 M( χ ) M( χ ); M( tanβ=3, µ>0, no slepton mixing fb ) fb Chargino Mass (GeV) Run II projections (combining CDF and DØ): 3l-max scenario: will probe m χ ± > 00 GeV large-m 0 scenario: sensitive up to m χ ± 50 GeV Updates with 3 fb datasets currently in progress
40 Beyond msugra Many other SUSY models on the market large variety of SUSY searches at the Tevatron Gauge-Mediated SUSY Breaking Inclusive γγ + E T : charginos excluded up to 9 GeV (DØ) σ (fb) - D. fb NLO cross-section observed limit expected limit expected limit ± σ expected limit ± σ Long-lived neutralinos: limits up to GeV (CDF) Anomaly-Mediated SUSY Breaking Stable charginos: excluded up to 74 GeV (DØ) [GeV] m χ m χ + [GeV] Λ (TeV) Split Supersymmetry Long-lived Gluinos g g χ 0 : limits up to 30 GeV for lifetimes up to 0 hours (DØ) R-Parity Violation LLE couplings: limits on charginos up to 34 GeV (DØ)
41 Beyond msugra Many other SUSY models on the market large variety of SUSY searches at the Tevatron Gauge-Mediated SUSY Breaking Inclusive γγ + E T : charginos excluded up to 9 GeV (DØ) Long-lived neutralinos: limits up to GeV (CDF) Anomaly-Mediated SUSY Breaking Stable charginos: excluded up to 74 GeV (DØ) Split Supersymmetry Long-lived Gluinos g g χ 0 : limits up to 30 GeV for lifetimes up to 0 hours (DØ) M χ ± [GeV] 60 0 DØ, 360 pb - R-Parity Violation LLE couplings: limits on charginos up to 34 GeV (DØ) Exclusion domains LEP excluded obs. λ obs. λ obs. λ 33 χ ± is LSP exp. λ exp. λ exp. λ M χ [GeV]
42 Beyond Supersymmetry Heavy Resonances Searches for heavy charged or neutral difermion resonance X: Channels considered for X 0 f f: ee, µµ, ττ, q q, t t (plus eµ, γγ) Channels considered for X ± ff : eν, q q, tb Events / 6 GeV DØ, fb data W e ν QCD (from data) other m W m W (a) = 500 GeV = 0 GeV ( 00) CDF Run II Preliminary ) Events/( GeV/c ) Events/( GeV/c L =.5 fb data Drell-Yan 40 - QCD Other SM M(ee) (GeV/c ) m T [GeV] DØ: M W >.0 TeV CDF: M Z >966 GeV M(ee) (GeV/c )
43 Beyond Supersymmetry Heavy Resonances Searches for Leptoquarks LQ lq: Final states considered: eeqq, eνqq, µµqq, µνqq, ννqq, ττbb, ννbb High LQ mass decay products with high transverse momenta check for excess at high S T =p T + p T + p3 T + p4 T st Generation (eeqq) 3rd Generation (ττbb) data Number of events/5 GeV - DØ 5pb Data Total Background LQ (40 GeV/c ) Entries Single- & Double-tags D0 preliminary - L=.05 fb QCD tt wbb lν bb wcc lν cc w+ljets lν ljets zbb ll bb zcc ll cc z+ljets ll ljets wz+zz incl. Signal(0 GeV)* Signal(80 GeV)* S T (GeV) (GeV) S T Mass limits for BR(LQ lq)=: st Generation: M>56 GeV nd Generation: M>5 GeV 3rd Generation: M>80 GeV
44 Conclusions Tevatron is running very well: 3 fb on tape, good prospects for 8 fb by 0 Precision measurements of Top and W mass pinpoint SM Higgs boson mass SM Higgs search finally reaching sensitivity SUSY Higgs: limits on tanβ at low m A (consistent with B s µµ) Direct searches for Supersymmetry: Squarks, Gluinos: excluded below about 380 GeV, 3 GeV Charginos: excluded below 45 GeV (in favourable scenarios) numerous signatures and models beyond msugra have been investigated Searches for heavy resonances probing masses up to TeV
45 Conclusions M / (GeV) 400 L dt = fb - tan(β) =, µ > 0, A 0 = 0 00 g(500) 00 g(000) l E T miss q(500) 800 l OS 0l 600 g(500) 3l l SS q(000) Still plenty of room for SUSY discovery at LHC! q(500) 400 Tevatron Reach g(00) q(00) 00 g(500) q(500) M 0 (GeV)
46 BACKUP
Search for Charginos and Neutralinos with the DØ Detector
SUSY 006, 06/3/006 Marc Hohlfeld Search for Charginos and Neutralinos with the DØ Detector Marc Hohlfeld Laboratoire de l Accélérateur Linéaire, Orsay on behalf of the DØ Collaboration SUSY 006, 06/3/006
More informationSearching for the Higgs at the Tevatron
Searching for the Higgs at the Tevatron 5 th May 2009 Particle Physics Seminar, Oxford Outline Introduction The challenges and analysis strategies Low mass SM Higgs searches High mass SM Higgs searches
More informationRecent Results on New Phenomena and Higgs Searches at DZERO
Recent Results on New Phenomena and Higgs Searches at DZERO Neeti Parashar Louisiana Tech University Ruston, Louisiana U.S.A. 1 Outline Motivation for DØ Run II Detector at Fermilab The Fermilab Tevatron
More informationPhysics at Tevatron. Koji Sato KEK Theory Meeting 2005 Particle Physics Phenomenology March 3, Contents
Physics at Tevatron Contents Koji Sato KEK Theory Meeting 5 Particle Physics Phenomenology March 3, 5 mass measurement Top physics cross section Top mass measurement SM Higgs search Tevatron Run II Started
More informationPhysics at the Tevatron. Lecture IV
Physics at the Tevatron Lecture IV Beate Heinemann University of California, Berkeley Lawrence Berkeley National Laboratory CERN, Academic Training Lectures, November 2007 1 Outline Lecture I: The Tevatron,
More informationSUSY Phenomenology & Experimental searches
SUSY Phenomenology & Experimental searches Alex Tapper Slides available at: http://www.hep.ph.ic.ac.uk/tapper/lecture.html Reminder Supersymmetry is a theory which postulates a new symmetry between fermions
More informationPhysics at the TeV Scale Discovery Prospects Using the ATLAS Detector at the LHC
Physics at the TeV Scale Discovery Prospects Using the ATLAS Detector at the LHC Peter Krieger Carleton University Physics Motivations Experimental Theoretical New particles searches Standard Model Higgs
More informationOutline: Introduction Search for new Physics Model driven Signature based General searches. Search for new Physics at CDF
PE SU Outline: Introduction Search for new Physics Model driven Signature based General searches R Search for new Physics at CDF SUperSYmmetry Standard Model is theoretically incomplete SUSY: spin-based
More informationTevatron Physics Prospects. Paul Grannis, for the CDF and DØ collaborations ICFA Seminar, Oct
Tevatron Physics Prospects Paul Grannis, for the CDF and DØ collaborations ICFA Seminar, Oct. 29 2008 CDF and DØ Operations Fermilab is planning to run CDF and DØ through FY2010. The Tevatron is now delivering
More informationHiggs Boson in Lepton Decay Modes at the CMS Experiment
Higgs Boson in Lepton Decay Modes at the Experiment Somnath Choudhury 1 for the collaboration 1 DESY - Hamburg, Germany DOI: http://dx.doi.org/1.34/desy-proc-14-4/1 The results on the standard model Higgs
More informationLa ricerca dell Higgs Standard Model a CDF
La ricerca dell Higgs Standard Model a CDF Melisa Rossi INFN-TS Giornata di seminari INFN Trieste - 7 Luglio 2009 FNAL: Fermi National Accelerator Lab Tevatron currently provides the highest energy proton-antiproton
More informationHiggs Boson Searches at ATLAS
Higgs Boson Searches at ATLAS Jianming Qian University of Michigan October 5, 2011 Maryland/John Hopkins Joint Seminar, October 5, 2011 Jianming Qian (University of Michigan) 1 Standard Model Standard
More informationPhysics at Hadron Colliders
Physics at Hadron Colliders Part 2 Standard Model Physics Test of Quantum Chromodynamics - Jet production - W/Z production - Production of Top quarks Precision measurements -W mass - Top-quark mass QCD
More informationHiggs search in WW * and ZZ *
Higgs search in WW * and ZZ * Emanuele Di Marco on behalf of CMS collaboration La Sapienza Università di Roma & INFN Roma1 July, 29 2011 1 Higgs production at LHC gluon fusion (gg H) gg H is the dominant
More informationEarly SUSY Searches in Events with Leptons with the ATLAS-Detector
Early SUSY Searches in Events with Leptons with the ATLAS-Detector Timo Müller Johannes Gutenberg-Universität Mainz 2010-29-09 EMG Annual Retreat 2010 Timo Müller (Universität Mainz) Early SUSY Searches
More informationPoS(EPS-HEP2011)250. Search for Higgs to WW (lνlν, lνqq) with the ATLAS Detector. Jonas Strandberg
with the ATLAS Detector Royal Institute of Technology, KTH, Stockholm, Sweden E-mail: jostran@kth.se Higgs boson searches in the H WW ( ) lνlν (l = e, µ) and the H WW ( ) lνqq decay modes, using. fb of
More informationSUSY at Accelerators (other than the LHC)
SUSY at Accelerators (other than the LHC) Beate Heinemann, University of Liverpool Introduction Final LEP Results First Tevatron Run 2 Results Summary and Outlook IDM 2004, Edinburgh, September 2004 Why
More informationHiggs Searches at CMS
Higgs Searches at CMS Ashok Kumar Department of Physics and Astrophysics University of Delhi 110007 Delhi, India 1 Introduction A search for the Higgs boson in the Standard Model (SM) and the Beyond Standard
More informationSearches for New Phenomena with Lepton Final States at the Tevatron
Searches for New Phenomena with Lepton Final States at the Tevatron including charginos, neutralinos,, excited leptons and unexpected signatures Todd Adams Florida State University for the CDF and DØ Collaborations
More informationSearching for Supersymmetry at the LHC David Stuart, University of California, Santa Barbara. CMS SUSY Search, D. Stuart, June 2011, Lisbon!
Searching for Supersymmetry at the LHC David Stuart, University of California, Santa Barbara CMS SUSY Search, D. Stuart, June 2011, Lisbon! 1! Searching for Supersymmetry at the LHC David Stuart, University
More informationSearch for the Higgs Boson at the LHC. Karl Jakobs Physikalisches Institut Universität Freiburg
Search for the Higgs Boson at the LHC Karl Jakobs Physikalisches Institut Universität Freiburg Outline of the talk:. Introduction, the Higgs boson in the Standard Model. The Standard Model Higgs boson
More informationHIGGS Bosons at the LHC
ATLAS HIGGS Bosons at the LHC Standard Model Higgs Boson - Search for a light Higgs at the LHC - Vector boson fusion - Comparison to the Tevatron potential Measurement of Higgs boson parameters The MSSM
More informationSUSY at Accelerators (other than the LHC)
SUSY at Accelerators (other than the LHC) Beate Heinemann, University of Liverpool Introduction Final LEP Results First Tevatron Run 2 Results Summary and Outlook IDM 2004, Edinburgh, September 2004 Why
More informationStudy of supersymmetric tau final states with Atlas at LHC: discovery prospects and endpoint determination
Study of supersymmetric tau final states with Atlas at LHC: discovery prospects and endpoint determination University of Bonn Outlook: supersymmetry: overview and signal LHC and ATLAS invariant mass distribution
More informationHiggs couplings and mass measurements with ATLAS. Krisztian Peters CERN On behalf of the ATLAS Collaboration
Higgs couplings and mass measurements with ATLAS CERN On behalf of the ATLAS Collaboration July observation: qualitative picture A single state observed around ~125 GeV Qualitatively all observations consistent
More informationDiscovery potential of the SM Higgs with ATLAS
Discovery potential of the SM Higgs with P. Fleischmann On behalf of the Collaboration st October Abstract The discovery potential of the Standard Model Higgs boson with the experiment at the Large Hadron
More informationTop Quark Physics at the LHC
Top Quark Physics at the LHC Ayana Arce HEP 0 Lectures #7 March 4, 203 Outline Introduction 2 Why are top quarks interesting? 3 Creating Top Quarks 4 Identifying Top Quarks 5 Some LHC results 6 Beyond
More informationThe Tevatron s Search for High Mass Higgs Bosons
The Tevatron s Search for High Mass Higgs Bosons Konstantinos A. Petridis University of Manchester On behalf of the CDF and DØ Collaborations K.A. Petridis (University of Manchester) Tevatron High Mass
More informationarxiv:hep-ph/ v1 17 Apr 2000
SEARCH FOR NEW PHYSICS WITH ATLAS AT THE LHC arxiv:hep-ph/0004161v1 17 Apr 2000 V.A. MITSOU CERN, EP Division, CH-1211 Geneva 23, Switzerland and University of Athens, Physics Department, Nuclear and Particle
More informationSearch for the Standard Model Higgs in WW (lν)(lν)
Search for the Standard Model Higgs in WW (lν)(lν) v l v l Yanyan Gao (Fermilab) February 11, 13 HEP Lunch seminar at University of Chicago The SM Higgs Production and Decays at LHC "(pp! H+X) [pb] The
More informationElectroweak Physics at the Tevatron
Electroweak Physics at the Tevatron Adam Lyon / Fermilab for the DØ and CDF collaborations 15 th Topical Conference on Hadron Collider Physics June 2004 Outline Importance Methodology Single Boson Measurements
More informationPoS(EPS-HEP 2013)215. WW, WZ, and ZZ production at CMS. Jordi DUARTE CAMPDERROS (on behalf of CMS collaboration)
(on behalf of CMS collaboration) Universidad de Cantabria/CSIC E-mail: jorge.duarte.campderros@cern.ch We present the WW, WZ and ZZ production cross sections measurements and constraints on anomalous triple-gauge
More informationD0 Higgs Results and Tevatron Higgs Combination
D Higgs Results and Tevatron Higgs Combination Graham W. Wilson University of Kansas July 3rd On behalf of the CDF and D collaborations Graham W. Wilson (University of Kansas) BEACH, Wichita July 3rd /
More informationarxiv:hep-ex/ v1 15 Jun 2006
arxiv:hep-ex/6636v 5 Jun 6 SEARCHES FOR NEW PHYSICS IN LEPTON FINAL STATES CATALIN I. CIOBANU FOR THE CDF AND DØ COLLABORATIONS Department of Physics, University of Illinois at Urbana-Champaign, W. Green
More informationHiggs search prospects at LHC
Higgs search prospects at LHC Rebeca González Suárez IFCA On behalf of the ATLAS and CMS Collaborations 26 June 2010 BEACH 2010 - IX International Conference on Hyperons, Charm and Beauty Hadrons University
More informationMeasurements of the Higgs Boson at the LHC and Tevatron
Measurements of the Higgs Boson at the LHC and Tevatron Somnath Choudhury (for the ATLAS, CMS, DØ and CDF collaborations) 44 th International Symposium on Multiparticle Dynamics 8 12 September 2014, Bologna
More informationProspect for Higgs Discovery at the TeVatron Run II
Prospect for Higgs Discovery at the TeVatron Run II ISN Grenoble on behalf of the CDF & DØ collaborations I. Run II Context Detector & Machine Upgrade Higgs Phenomenology II. Existing studies on Higgs
More informationSearch for R-parity violating Supersymmetry. III Phys. Inst. A, RWTH Aachen
R-parity violating Supersymmetry III Phys. Inst. A, RWTH Aachen Introduction to R-parity violating SUSY Three DØ searches via non-zero LLE (short and long lived LSP) and LQD couplings Perspectives for
More informationATLAS Discovery Potential of the Standard Model Higgs Boson
ATLAS Discovery Potential of the Standard Model Higgs Boson Christian Weiser University of Freiburg (on behalf of the ATLAS Collaboration) 14th Lomonosov Conference on Elementary Particle Physics Moscow,
More informationSUSY searches at LHC and HL-LHC perspectives
SUSY searches at LHC and HL-LHC perspectives Maximilian Goblirsch-Kolb, on behalf of the ATLAS and CMS collaborations 26.10.2017, LCWS 2017, Strasbourg SUSY particle production in p-p collisions Two main
More informationSearching for the Higgs at the LHC
Searching for the Higgs at the LHC Philip Lawson Boston University - PY 898 - Special Topics in LHC Physics 3/16/2009 1 Outline Theory & Background of Higgs Mechanism Production Modes Decay Modes - Discovery
More informationHiggs and New Physics at ATLAS and CMS
Higgs and New Physics at ATLAS and CMS F. Malek, LPSC-Grenoble for the ATLAS and CMS Collaborations 56th International Winter Meeting on Nuclear Physics 22-26 January 2018, Bormio-Italy ATLAS and CMS experiments
More informationHiggs Searches and Properties Measurement with ATLAS. Haijun Yang (on behalf of the ATLAS) Shanghai Jiao Tong University
Higgs Searches and Properties Measurement with ATLAS Haijun Yang (on behalf of the ATLAS) Shanghai Jiao Tong University LHEP, Hainan, China, January 11-14, 2013 Outline Introduction of SM Higgs Searches
More informationElectroweak results. Luca Lista. INFN - Napoli. LHC Physics
Electroweak results Luca Lista INFN - Napoli EWK processes at LHC p p W and Z production in pp collisions proceeds mainly form the scattering of a valence quark with a sea anti-quark The involved parton
More informationBeyond the Standard Model Higgs boson searches using the ATLAS etector
EPJ Web of Conferences 95, 47 (5) DOI:.5/ epjconf/ 5947 C Owned by the authors, published by EDP Sciences, 5 Beyond the Standard Model Higgs boson searches using the ATLAS etector I.I. Tsukerman the ATLAS
More informationCombined Higgs Searches at DZero
Combined Higgs Searches at DZero + CDF & DØ W&C, December 7 th 2007 Gregorio Bernardi, LPNHE-Paris for the DØ Collaboration Standard Model Higgs Searches New results since Lepton-Photon (2007) Combination
More informationReview of ATLAS experimental results (II)
Review of ATLAS experimental results (II) Rachid Mazini Academia Sinica Taiwan CTEQ 2012 summer school Lima, Peru 30 July -8 August Rachid Mazini, Academia Sinica 1 Outline part II Higgs searches H, H
More informationSearch for Resonant Slepton Production with DØ
Overview Search for Resonant Slepton Production with DØ Christian Autermann, III. Phys. Inst. A, RWTH Aachen Event Topology Data Selection and Efficiencies Control Plots Selection Optimization Preliminary
More informationSearch for top squark pair production and decay in four bodies, with two leptons in the final state, at the ATLAS Experiment with LHC Run2 data
Search for top squark pair production and decay in four bodies, with two leptons in the final state, at the ATLAS Experiment with LHC Run data Marilea Reale INFN Lecce and Università del Salento (IT) E-mail:
More informationSearch for Supersymmetry at CMS in all-hadronic final states
Search for Supersymmetry at CMS in all-hadronic final states The 9th Particles and Nuclei International Conference, MIT Matthias Schröder (Universität Hamburg) on behalf of the CMS Collaboration 5 July
More informationPoS(ICHEP 2010)544. Higgs searches at the Tevatron. Ben Kilminster Fermilab bjk AT fnal.gov
Fermilab E-mail: bjk AT fnal.gov We present combined CDF and D searches for the Standard Model (SM) and Minimal Supersymmetric Standard Model (MSSM) Higgs boson using up to 6.7 fb of integrated luminosity
More informationSUPERSYMMETRY SEARCHES AT CDF
SUPERSYMMETRY SEARCHES AT CDF Xavier Portell Freiburg, 8 th Nov 2006 1 OUTLINE Tevatron and CDF Supersymmetry (SUSY) SUSY models phenomenology SUSY analyses at CDF: Squarks and Gluinos (Missing E T +jets)
More informationSearch for Pair Production of Stop Quarks Mimicking Top Event Signatures
CDF/PUB/TOP/PUBLIC/9343 Search for Pair Production of Stop Quarks Mimicking Top Event Signatures The CDF Collaboration URL http://www-cdf.fnal.gov May 29, 2008 Abstract We present the search for the pair-produced
More informationSearches for Standard Model Higgs Boson at the D Detector at the Tevatron. Alexander Khanov Oklahoma State University SUSY 06
Searches for Standard Model Higgs Boson at the D Detector at the Tevatron Alexander Khanov Oklahoma State University SUSY 06 The Higgs Boson Higgs: origin of the EW symmetry breaking in SM Higgs mass:
More informationCMS. Saeid Paktinat. On behalf of the CMS Collaborations. (IPM, Tehran)
SUSY @ CMS (IPM, Tehran) On behalf of the CMS Collaborations outline SUSY Common Signatures Some Examples Conclusion 2 Why SUperSYmmetry(1) SM describes a lot of experimental results very precisely, but
More informationPedro Teixeira-Dias. Higgs Overview
Pedro Teixeira-Dias Higgs Overview UK HEP Forum Cosener s House, 20/9/2010 20/9/2010 Pedro Teixeira-Dias/RHUL UK HEP Forum Cosener s House 2 Overview LHC data taking at high energy started in 2010 First
More informationTop Physics in Hadron Collisions
Top Physics in Hadron Collisions Dirk Dammann DESY 2010-02-04 1 / 44 Outline 1 2 3 4 2 / 44 Outline Motivation Top Production Top Decay Top Physics 1 Motivation Top Production Top Decay Top Physics 2 3
More informationSUSY & Non SM Higgs Searches
SUSY & Non SM Higgs Searches Mario Martínez-Pérez (IFAE-Barcelona) Outline SUSY Squark/Gluino Searches Search for Chargino/Neutralino GMSB Scenario Non SM Higgs Searches Bs->μμ vs MSSM SUSY @ the LHC Final
More informationHiggs-related SM Measurements at ATLAS
Higgs-related SM Measurements at ATLAS Junjie Zhu University of Michigan 2 nd MCTP Spring Symposium on Higgs Boson Physics Outline Introduction Isolated γγ cross section (37 pb -1, Phys. Rev. D 85, 012003
More informationSearch for Invisible Decay of Higgs boson at LHC
Search for Invisible Decay of Higgs boson at LHC Kajari Mazumdar Tata Institute of Fundamental Research Mumbai DHEP seminar, TIFR, Mumbai 22.4.2014 Plan of the talk Preliminaries Status of measurements
More informationCMS Searches for New Physics
CMS Searches for New Physics Christian Autermann, for the CMS collaboration I. Phys. Inst. RWTH Aachen University, Germany QCD14 2 Overview Searches for New Physics at CMS Inclusive search for Supersymmetry
More informationMeasurements of Fermionic Couplings of the Standard Model Higgs Boson using the bb, ττ and µµ Decay Channels with the ATLAS Detector
Measurements of Fermionic Couplings of the Standard Model Higgs Boson using the bb, ττ and µµ Decay Channels with the ATLAS Detector International Europhysics Conference on High Energy Physics Venice,
More informationW/Z + jets and W/Z + heavy flavor production at the LHC
W/Z + jets and W/Z + heavy flavor production at the LHC A. Paramonov (ANL) on behalf of the ATLAS and CMS collaborations Moriond QCD 2012 Motivation for studies of jets produced with a W or Z boson Standard
More informationThe Higgs boson discovery. Kern-und Teilchenphysik II Prof. Nicola Serra Dr. Annapaola de Cosa Dr. Marcin Chrzaszcz
The Higgs boson discovery Kern-und Teilchenphysik II Prof. Nicola Serra Dr. Annapaola de Cosa Dr. Marcin Chrzaszcz Higgs production at the LHC g H VBF (Vector Boson Fusion) g gg fusion q 2 W/Z q 0 2 H
More informationHiggs Boson Physics at the Tevatron
Higgs Boson Physics at the Tevatron Koji Sato On Behalf of CDF and D0 Collaborations Windows on the Universe Qui Nhon, August 14, 2013 1 Tevatron Run II p p collisions at s = 1.96 TeV (1.8 TeV in Run I).
More informationHiggs Boson Searches in ATLAS
Higgs Boson Searches in ATLAS Wolfgang F. Mader Institut für Kern- und Teilchenphysik TU Dresden Fourth fermion generation and single-top production 202 26-28 March 202 Leinsweiler, Pfalz, Germany Wolfgang
More informationSearches for new physics at ATLAS
1 Searches for new physics at ATLAS Gökhan Ünel U.C. Irvine On behalf of the ATLAS collaboration ICPP 2011 Istanbul Outline 2 LHC has been giving us data at ever increasing pace. Lint =1 fb reached as
More informationHiggs Prospects at the Upgraded Tevatron: Fermilab Study Results
Higgs Prospects at the Upgraded Tevatron: Fermilab Study Results John D. Hobbs for the Fermilab RunII SUSY/Higgs Working Group SUNY Stony Brook Preliminary results from a Fermilab study of the sensitivity
More informationSearching for Beyond Standard Model Physics with Top Quarks at the ATLAS Detector
Searching for Beyond Standard Model Physics with Top Quarks at the ATLAS Detector (University of Hong Kong) Topical Mini-Workshop of the New Physics at the TeraScale @ Tsung-Dao Lee Institute, SJTU Introduction
More informationHiggs Signals and Implications for MSSM
Higgs Signals and Implications for MSSM Shaaban Khalil Center for Theoretical Physics Zewail City of Science and Technology SM Higgs at the LHC In the SM there is a single neutral Higgs boson, a weak isospin
More informationEvidence for Higgs Boson Decays to a Pair of τ-leptons
Evidence for Higgs Boson Decays to a Pair of τ-leptons ET miss = 119 GeV μ (pt=6 GeV) τhad (pt=96 GeV) mττ =19 GeV Nils Ruthmann mjj =65 GeV Nils Ruthmann (Universität Freiburg) On Behalf of the ATLAS
More informationDiscovery Physics at the Large Hadron Collider
+ / 2 GeV N evt 4 10 3 10 2 10 CMS 2010 Preliminary s=7 TeV -1 L dt = 35 pb R > 0.15 R > 0.20 R > 0.25 R > 0.30 R > 0.35 R > 0.40 R > 0.45 R > 0.50 10 1 100 150 200 250 300 350 400 [GeV] M R Discovery
More informationIdentification of the Higgs boson produced in association with top quark pairs in proton-proton
Identification of the Higgs boson produced in association with top quark pairs in proton-proton collision: an analysis of the final state containing three leptons with the ATLAS detector Valentina Vecchio,
More informationSearches for exotica at LHCb
Searches for exotica at LHCb Lorenzo Sestini Università di Padova e INFN LHCb Implications Workshop, Geneve-Cern, 3-11-2015 Searches for exotics LHCb can be complementary to ATLAS and CMS in the search
More informationSearch for the Higgs boson in fermionic channels using the CMS detector
Search for the Higgs boson in fermionic channels using the CMS detector Centre for Cosmology, Particle Physics and Phenomenology (CP3) Université catholique de Louvain Chemin du Cyclotron, 2 B-1348, Louvain-la-Neuve
More informationHiggs cross-sections
Ph.D. Detailed Research Project Search for a Standard Model Higgs boson in the H ZZ ( ) 4l decay channel at the ATLAS Experiment at Cern Ph.D. Candidate: Giacomo Artoni Supervisor: Prof. Carlo Dionisi,
More informationSearch for High Mass SM Higgs at the Tevatron
Search for High Mass SM Higgs at the Tevatron Les Rencontres de Physique de la Vallee D'Aoste Mar. 6, 2009 Herbert Greenlee Fermilab for the CDF and D0 Collaborations SM Higgs Boson Direct Limit (LEP)
More informationSearch for the SM Higgs in τ l τ h jj Final States: Production Modes and Background Modeling
Search for the SM Higgs in τ l τ h jj Final States: Production Modes and Background Modeling Ian Howley on behalf of the DØ Collaboration APS April Meeting, Atlanta GA March 30, 2012 I. Howley (UT Arlington)
More informationSearch for Higgs and new Physics at CDF
Search for Higgs and new Physics at CDF Outline: Search for Standard Model Higgs Introduction Analysis methods for low mass Higgs Strategies for high mass Higgs Search for new Physics Signature based Electron
More informationATLAS NOTE ATLAS-CONF th March 2015
ATLAS NOTE ATLAS-CONF-215-7 18th March 215 Measurements of the Higgs boson production and decay rates and coupling strengths using pp collision data at s = 7 and 8 TeV in the ATLAS experiment The ATLAS
More informationCMS Higgs Results Adi Bornheim Caltech
CMS Higgs Results Adi Bornheim Caltech 06.04.2014 1 A brief history of recent times W & Z Boson t-quark H Boson 1964 1974 1984 1994 2004 2014 Peter Higgs This talk : Summary of 29 CMS publications and
More informationInclusive top pair production at Tevatron and LHC in electron/muon final states
Inclusive top pair production at Tevatron and LHC in electron/muon final states Andreas Jung for the ATLAS, CDF, CMS and D Collaboration Fermilab, DAB5 - MS 357, P.O. Box 5, Batavia, IL, 651, USA DOI:
More informationSearch for SUSY at CMS in lepton or photon final states. PANIC 2011 K. Theofilatos (on behalf of CMS)
Search for SUSY at CMS in lepton or photon final states CMS in one slide Optimal design for reconstructing leptons & photons Compact & precisely aligned detector with B=3.8 T Calorimeters operating inside
More informationHiggs boson searches in the H ττ channel
* On behalf of the CMS Collaboration DESY Hamburg, KIT E mail: agni.bethani@desy.de A search for Higgs bosons in decay channels with two τ leptons in the final state is described. The search is performed
More informationSearches for New Physics with Tau Leptons at the ATLAS Detector. Katharine Leney University of the Witwatersrand
Searches for New Physics with Tau Leptons at the ATLAS Detector Katharine Leney University of the Witwatersrand Overview Introduction: ATLAS and the LHC The Standard Model and beyond Tau leptons ATLAS
More information8.882 LHC Physics. Higgs Physics and Other Essentials. [Lecture 22, April 29, 2009] Experimental Methods and Measurements
8.882 LHC Physics Experimental Methods and Measurements Higgs Physics and Other Essentials [Lecture 22, April 29, 2009] Organization Next week lectures: Monday 2pm and Tuesday 9:30am (which room?) Project
More informationUpgrade of ATLAS and CMS for High Luminosity LHC: Detector performance and Physics potential
IL NUOVO CIMENTO 4 C (27) 8 DOI.393/ncc/i27-78-7 Colloquia: IFAE 26 Upgrade of ATLAS and CMS for High Luminosity LHC: Detector performance and Physics potential M. Testa LNF-INFN - Frascati (RM), Italy
More informationDiscovery potential for SUGRA/SUSY at CMS
Discovery potential for SUGRA/SUSY at CMS Stefano Villa, Université de Lausanne, April 14, 2003 (Based on talk given at SUGRA20, Boston, March 17-21, 2003) Many thanks to: Massimiliano Chiorboli, Filip
More informationSearch for Higgs Bosons at LEP. Haijun Yang University of Michigan, Ann Arbor
Search for Higgs Bosons at LEP Haijun Yang University of Michigan, Ann Arbor L3 On behalf of the L3 Collaboration American Physical Society Meeting(APS03), Philadelphia April 5-8, 2003 OUTLINE Introduction
More informationReview of Higgs results at LHC (ATLAS and CMS results)
Review of Higgs results at LHC (ATLAS and CMS results) Università degli Studi di Genova and INFN, Genova, Italy E-mail: andrea.favareto@ge.infn.it The status of Higgs sector studies at the Large Hadron
More informationP. Sphicas/SSI2001. Standard Model Higgs
Standard Model Higgs SM Higgs (I) Production mechanisms & cross section Studying EWSB at the LHC 2 Decays & discovery channels Higgs couples to m f 2 SM Higgs (II) Heaviest available fermion (b quark)
More informationMeasurement of the Z ττ cross-section in the semileptonic channel in pp collisions at s = 7 TeV with the ATLAS detector
Measurement of the Z ττ cross-section in the semileptonic channel in pp collisions at s = 7 TeV with the ATLAS detector Sofia Consonni Università di Milano & INFN XCVII Congresso Nazionale della Società
More informationSingle-Top at the Tevatron
Single-Top at the Tevatron Bernd Stelzer University of Toronto on behalf of the CDF and DØD Collaborations 15 th International Conference on Hadron Collider Physics, Michigan State University, 14-18 June
More informationSearches for Physics Beyond the Standard Model at the Tevatron
FERMILAB-CONF-10-704-E-PPD Proceedings of the XXX. Physics in Collision Searches for Physics Beyond the Standard Model at the Tevatron Chris Hays 1 for the CDF and D0 Collaborations (1) Oxford University,
More informationSingle top quark production at CDF
Available online at www.sciencedirect.com Nuclear and Particle Physics Proceedings 73 75 (16) 74 79 www.elsevier.com/locate/nppp Single top quark production at CDF Sandra Leone, on behalf of the CDF Collaboration
More informationRecent searches for new particles using 13 TeV data with ATLAS at the LHC
Recent searches for new particles using 13 TeV data with ATLAS at the LHC Vivek Jain (on behalf of the ATLAS Collaboration) State University of New York, Albany MIAMI2015 Dec 19, 2015 Beyond the Standard
More informationHighlights of top quark measurements in hadronic final states at ATLAS
Highlights of top quark measurements in hadronic final states at ATLAS Serena Palazzo 1,2,, on behalf of the ATLAS Collaboration 1 Università della Calabria 2 INFN Cosenza Abstract. Measurements of inclusive
More informationStandard Model Higgs Searches at the Tevatron (Low Mass : M H ~140 GeV/c 2 )
Standard Model Higgs Searches at the Tevatron (Low Mass : M H ~140 GeV/c 2 ) For the CDF and Dø Collaborations Kohei Yorita University of Chicago The XLIIIrd Rencontres de Moriond EW La Thuile in Italy,
More informationSearch for the Higgs boson in the t th production mode using the ATLAS detector
Search for the Higgs boson in the t th production mode using the ATLAS detector Rustem Ospanov (University of Pennsylvania) on behalf of the ATLAS collaboration Large Hadron Collider Physics Conference,
More informationATLAS-CONF October 15, 2010
ATLAS-CONF-2010-096 October 15, 2010 Data-driven background estimation for the H τ + τ τ h search at 7 TeV with the ATLAS detector Ian Howley 7 December 2010 1 Motivation One of the primary LHC physics
More information