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Physics Discovery Potential at the ILC

Outline. The Standard Model (SM) of Particle PhysicsWhat does the SM fail to explain? The fundamental questions in particle physicsColliders as powerful tools to find new laws of nature . The TeVatron at Fermilab. The Lar

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Physics Discovery Potential at the ILC

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    1. Physics Discovery Potential at the ILC Marcela Carena Theoretical Physics Department Fermilab ILC Industrial Forums Fermilab, September 21, 2005

    2. Outline The Standard Model (SM) of Particle Physics What does the SM fail to explain? The fundamental questions in particle physics Colliders as powerful tools to find new laws of nature

    6. Discovering the Higgs will put the final piece of the Standard Model in place but will present big mysteries of its own! Data from experiments and quantum effects within the SM yield From our present understanding the Higgs is expected to have a mass of order a billion billion times the Tera-electron-Volt (TeV) energy scale but a TeV Higgs is necessary to solve the mass puzzle of the SM New Physics at the TeV scale is needed to stabilize the Higgs mass quantum corrections and to answer the fundamental questions of particle physics

    8. 2. Are there Extra Dimensions (ED) of space?

    9. 3. Do all the forces become one?

    11. 5. What is Dark Matter (DM)?

    13. At the TeV scale we expect discoveries Precision measurements and astrophysical observations point to it

    14. The TeVatron at Fermilab

    15. The Large Hadron Collider

    17. Exploring the Higgs Sector Unique powerful feature of the ILC ? it can observe the Higgs no matter how it decays !

    18. Discovering and Understanding Supersymmetry Important Synergy between LHC and ILC

    19. A careful search for DM candidates at the TeV scale is essential The LHC will probably find evidence of DM particles through missing momentum and missing energy analyses The ILC will determine its properties with extreme detail, allowing to compute which fraction of the total DM density of the universe it makes

    20. A Telescope to the Highest Energies

    21. New forces of Nature: new gauge bosons LHC has great discovery potential for multiTeV new force carriers ? Z’ The ILC can “see” them as a telescope: zooming in to see the virtual Z’ contributions to muons/taus pair production ? using polarized electron-positron beams and measuring angular distribution of leptons can measure strength of Z’ couplings to leptons

    22. Conclusions The ILC is a powerful telescope that allows us to explore the highest possible energies of nature. It is an amazing machine designed to extend the Large Hadron Collider discoveries and help us answer many of the most fundamental questions of science.

    23. Extras

    24. Revealing Extra Dimensions The ILC can produce a photon in association with a graviton which dissapears into the Extra dimension !

    26. Strong Interactions

    27. Weak Interactions

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