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SUSY Studies LCWS 05, Stanford, 18-22 March 2005

SUSY Studies LCWS 05, Stanford, 18-22 March 2005. Jan Kalinowski Warsaw University. Outline. Key questions Why SUSY Activities The frame Recent progress What if ... Summary and outlook. Key questions. O rigin of mass? Is it the Higgs mechanis m, or ...?

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SUSY Studies LCWS 05, Stanford, 18-22 March 2005

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  1. SUSY StudiesLCWS 05, Stanford, 18-22 March 2005 Jan Kalinowski Warsaw University

  2. Outline • Key questions • Why SUSY • Activities • The frame • Recent progress • What if ... • Summary and outlook SUSY Studies, LCWS'05, Stanford

  3. Key questions • Origin of mass? Is it the Higgs mechanism, or ...? • Origin of matter-antimatter asymmetry? • Properties of neutrinos? • Unification of forces, including gravity? • Dark matter, dark energy? • SUSY may be related to all these questions • SUSY can be tested at colliders • the ILC provides essential tools for discovery answers • Discovering SUSY – a revolution in particle physics SUSY Studies, LCWS'05, Stanford

  4. CMSSM Ellis, Heinemeyer, Olive, Weiglein hep-ph/0411216 JK, Porod Carena, Quiros, Wagner Baer DM Ellis, Olive, Santoso, Spanos • non-minimal SUSY, extra gauge factors, .. • remove scalars Split SUSY Why SUSY ? • . Pros: • predicts gauge unification • dark matter candidate • WMAP constrains models, e.g. • but neutralinos are visible at ILC • naturally consistent with EW data • relaxing model assumptions • electroweak baryogenesis Cons: A ‘little hierarchy’ problem? SUSY Studies, LCWS'05, Stanford

  5. Activities . SUSY WG talks: W. Hollik - Supersymmetry Parameter Analysis: SPA Convention and ProjectP. Bechtle - Supersymmetry Parameter Analysis with FittinoD. Stockinger - Renormalization and Regularization of SUSY theoriesK. Kovarik - Precise Predictions for SUSY Processes at the ILCW. Kilian - Split Supersymmetry at the Linear ColliderG. Moortgat-Pick - Distinguishing Between MSSM and NMSSM via Combined LHC/ILC Analyses H. Baer - Crazy SUSY Scenarios for the ILC That Just Might be TrueM.A. Diaz - Neutrinos in SupersymmetryN. Haba - Higgs Mass in the Gauge-Higgs Unification TheoryA. Birkedal - Complementarity of Precision Studies at the LHC and the ILCP. Osland - Supersymmetric Cascade DecaysR. Godbole/S. Kraml - Fermion Polarization in Sfermion DecaysE. Boos - Impact of Tau Polarization for Study of the MSSM Charged Higgses in Top Quark Decays at ILCB. Schumm - Forward Selectron Production and Detector PerformanceK.C. Kong - Impact of Beamstrahlung on Precision Measurements of New Physics at H. Nowak - Studies on Scalar Top Quarks, Chargino and Scalar Lepton Production at LCU. Nauenberg - The Importance of Positron Polarization and the Deleterious Effects of Beam/Bremmstrahlung on the Measurement of Supersymmetric Particle Masses C. Wagner - Low Energy Supersymmetry and Electroweak BaryogenesisC. Milstene - Analysis of Stop Quarks With Small Stop-Neutralino Mass Difference at LCJ.L. Kneur - Updated Constraints on the mSUGRA and Prospects for Sparticle Production at the ILCG. Weiglein - Indirect Sensitivities to the Scale of SupersymmetrySS Many interesting SUSY studies since LCWS’04 in Paris Three regional meetings in 2004: • ALCPG Workshop in Victoria, 28-31 July 16 presentations • ECFA Workshop in Durham, 1-4 September 18 presentations • ACFA Workshop in Taipei, 9-12 November 6 presentations Here 21 presentations in SUSY + some talks in Higgs, Cosmo and ee/gg WG Impossible to give justice to all Main themes: new experimental analyses, LHC/LC synergy non-minimal scenarios: CPV, LFV, nMSSM, Split cosmologyconnection SUSY Studies, LCWS'05, Stanford

  6. Gjelsten, Miller, Osland Murayama Moreover, ILC can help identifying heavy neutralino at LHC Even if standard SUSY, false solutions may occur Need ILC to eliminate them Peskin Cheng, Matchev, Schmaltz Desch, JK, Moortgat-Pick, Nojiri, Polesello The frame • LHC will see SUSY if squarks/gluinos below 2-3 TeV • Many channels from squark and gluino decays • ILC needed for precision and model-independent studies SUSY Studies, LCWS'05, Stanford

  7. The frame From theory: important goals to achieve • accurate theoretical calculations to match the experimental data • model-independent reconstruction of Lagrange parameters aaand SUSY breaking mechanism • SUSY – a bridge between EW and GUT/Planck scales to achieve these goals the SPA Project has been proposed http://spa.desy.de/spa SUSY Studies, LCWS'05, Stanford

  8. The Project W. Hollik http://spa.desy.de/spa • SPA Convention renorm. schemes / LE parameters / observables • Program repository th. & exp. analyses / LHC+ILC tools / Susy Les Houches Accord • Theoretical and experimental tasks short- and long-term sub-projects • Reference point SPS1a’ derivative of SPS1a, consistent with all data • Current and future developments CP-MSSM, RpV, Split, nMSSM, effective string th., etc. SUSY Studies, LCWS'05, Stanford

  9. Recent progress D. Stockinger hep-ph/0503129 DRbar scheme: 2. Problem with factorization -- needs further study SUSY Studies, LCWS'05, Stanford

  10. Boos, Bunichev, Carena, Wagner   e + e -  all e e Nauenberg & Co Kraml/Godbole, Guchait, Roy e - 80%R ~ t ->ct -> cpn Nauenberg & Co e+ 80% R ~ • f f c chiral structure in ~ t -> ct decays Selectron Production e+ - e - Energy Spectra e+ 0 pol. e-Spect.e - 80%Re+ Spect Recent progress • positron polarisation • slepton masses • t -> H+ b, H+->tn SUSY Studies, LCWS'05, Stanford

  11. Recent progress K. Kovarik Loop corrections are needed to match experimental precision Higher order calculations mandatory SUSY Studies, LCWS'05, Stanford

  12. Testing the project • SPS1a’- derivative of the SPS1a point mSUGRA values: SUSY Studies, LCWS'05, Stanford

  13. Reconstructing Lagrange param. • global analysis codes: SFitter (R. Lafaye, T. Plehn and D. Zerwas) Fittino (P. Bechtle, K. Desch, P. Wienemann) • fit masses + xsections and BR • radiative corrections included • ex: Fittino SUSY Studies, LCWS'05, Stanford

  14. Bechtle, Desch Wienemann SUSY Studies, LCWS'05, Stanford

  15. unify within 1.5% High-scale extrapolation • gauge couplings a-1 • gaugino masses M-1 scalar masses Mj2 • universality can be tested in bottom-up approach SUSY Studies, LCWS'05, Stanford

  16. Arvanitaki ea testable at LHC+ILC Kilian, Plehn, Richardson, Schmidt hep-ph/0408088 What if ... • Split SUSY Arkani-Hamed, Dimopoulos • Signature: • heavier SM-like Higgs boson • LHC: long-lived gluino • ILC: measure Yukawa couplings SUSY Studies, LCWS'05, Stanford

  17. What if ... • Split SUSY • CP-violated MSSM • CP-odd asymmetries in gaugino/higgsino • Hesselbach et al. • Majorana nature in neutralino prod.+dec. • B. Chung et al. SUSY Studies, LCWS'05, Stanford

  18. What if ... • NMSSM • Split SUSY • CP-violated MSSM • two more Higgses and one more neutralino • Moortgat-Pick et al. SUSY Studies, LCWS'05, Stanford

  19. Blair, Porod, Zerwas What if ... • NMSSM • Split SUSY • CP-violated MSSM • LR SUGRA • kink in evolution of 3rd generation SUSY Studies, LCWS'05, Stanford

  20. Díaz, Hirsch, Porod, Romao, Valle What if ... • NMSSM • Split SUSY • CP-violated MSSM • LR SUGRA • Rp violation • neutrinos mix with neutralinos SUSY Studies, LCWS'05, Stanford

  21. What if ... • NMSSM • Split SUSY • CP-violated MSSM • LR SUGRA • Rp violation • Superstring eff. model • integer modular weights SUSY Studies, LCWS'05, Stanford

  22. precision LHC/ILC + WMAP/PLANCK consistency checks on cosmological models Summary and outlook • Many interesting avenues explored • SPA: a joint interregional th. and exp. effort Bottom-up approach: max exploitation of measurements taking full account of theoretical knowledge • cosmology strongly constrains certain SUSY models • our next stop: ILC Workshop in Snowmass • LHC+ILC – telescope to GUT/Planck physics SUSY Studies, LCWS'05, Stanford

  23. SUSY Studies, LCWS'05, Stanford

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