Strong Electroweak Symmetry Breaking

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Strong Electroweak Symmetry Breaking. P.Krstonosic. Work done by : K. M nig, W.Killian, P.Krstonosic, M. Beyer, E. Schmidt, H. Schrder. Introduction. All possible weak boson scattering processes and sensitivity to the quartic anomalous couplings. deff. remark. Processes. - PowerPoint PPT Presentation

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  • Strong Electroweak Symmetry BreakingP.Krstonosic Work done by : K. Mnig, W.Killian, P.Krstonosic, M. Beyer, E. Schmidt, H. Schrder

    LHC / ILC interplay

  • Introduction deff. remark All possible weak boson scattering processes and sensitivity to the quartic anomalous couplings

    LHC / ILC interplay

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  • Processes Polarization 80%L for e- , 40%R for e+ for the beamsnew Initial state radiation taken into account single weak boson production as background e- e- option considered

    LHC / ILC interplay

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  • dependence of the total cross section on anomalous couplings( only one varied at a time) , and sensitivity of variables used in the fit ( total mass , absolute production and decay angle )Sensitive variables

    LHC / ILC interplay

  • Matrix element calculation with Simulation & Fit Full 1ab-1 event sample generated with WHIZARD Hadronization with PYTHIAfollowed by SIMDET fast simulation O'megaused for calculating event weights in the form : where R is the ratio of the matrix element to the SM one Sensitivity is evaluated with Binned Likelihood Fit SM sample, After separate analysis for signal processes double counted events were assigned to one sample according to mass distance from M(V)+M(V) mass (V=W or Z)

    LHC / ILC interplay

  • ISR example of ISR influence on result ( 800GeV W+W- )Fit for only signal process ( no background)

    LHC / ILC interplay

  • 1TeV e+e- two parameter contours ( full line 70%Cl, dotted line 90%Cl)

    LHC / ILC interplay

  • 1TeV e+e- Results from 1ab-1 sample 2D case ( ) and a full 5D fit

    LHC / ILC interplay

  • 1TeV e+ e- result for a 1ab-1 sample from e+e- processes at 1TeV

    5D1 Error-2.722.37-2.462.35-3.935.53-3.223.31-5.554.55

    LHC / ILC interplay

  • 1TeV e-e- and combined in red 1ab-1 e+e- & 350fb-1 e- e- in blue 2ab-1 e+e-

    LHC / ILC interplay

  • standard modelbackgroundTriple weak boson production

    LHC / ILC interplay

  • momenta3 particles x 4 components12energy momentum conservation - 4 on-shell condition- 3axial invariance (-dependence) - 2e.g. eZ plane, ZW planetotal 3kinematical variables:M(ww), M(wz),(Z)spins, 2 d.o.f

    Three-body kinematics

    LHC / ILC interplay

  • 54preliminaryConfidence level contours70%Cl90%ClWWZ 80% e-right, 60% e+leftZZZ unpolarizedWWZ 80% e-right polarizationWWZ unpolarized

    LHC / ILC interplay

  • LHC / ILC interplay

  • LHC / ILC interplay

  • LHC / ILC interplay

  • LHC / ILC interplay

  • LHC / ILC interplay

  • Current statusLHCILCAnalysis Analysis ResultResultCombine

    LHC / ILC interplay

  • Examples Limited use .. Just to make a nice plot ( increase authors citation index ) .. No use for another study LC-PHSM-2001-038

    LHC / ILC interplay

  • What we wantLHCILCAnalysis Analysis Result

    LHC / ILC interplay

  • Summary Major step towards a full and consistent set of limits done Triple weak boson production still to come Interpretation of results in specific physic scenarios in plan waiting for results of LHC analysis

    LHC / ILC interplay