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Super B Factory: Expanding the Reach of Physics Beyond LHC

Explore the potential of a Super B Factory to discover new physics that the LHC may have difficulty in uncovering. With superior signal-to-background ratios and well-understood experimental techniques, the Super B Factory can provide insights into modes involving photons, neutral pions, and neutrinos. Lessons from history show that new physics is often first seen in loop processes, making the Super B Factory a valuable addition to the search for new phenomena.

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Super B Factory: Expanding the Reach of Physics Beyond LHC

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  1. Is there any NP that LHC has difficulty to discover that a Super B factory can discover ? Theorists: Dimensional arguments give scales of 102 TeV or 10 TeV, depending on whether or not new physics is MFV Experimenters: History shows that new physics is seen first in loop effects. Why should it be different this time ? What can a Super B factory provide beyond the expected reach of LHCb ? Easy answer: modes with photons, neutral pions and neutrinos. Superior signal to background and well understood systematics and experimental techniques for charged decays. Complete coverage of B, tau and D decays and an open trigger

  2. Lessons of History New Physics is usually discovered first in loop processes, which involve high massvirtual particles. (Heisenberg Uncertainty Principle) Example I: Absence of KL allowed theorists to deduce the existence of the charm quark. The rate of K mixing allowed a rough determination of the charm mass. Example II: The absence of bs decays and the long B lifetime ruled out topless models. Large Bd mixing showed the top was heavy contrary to theory prejudices of the time. Radiative corrections from Z measurements determined the rough range of the top mass…… Vtd Vtd Beautiful and precise measurements of the top quark mass at the Tevatron. However, the couplings |Vts|,|Vtd,|and most importantly the phase of (Vtd) cannot be measured in direct top production.

  3. BACKUP

  4. Master Plan for Japanese High Energy Physics

  5. K. Oide (Leading Japanese Accelerator Physicist) “Dai-repoton keikaku” Budget of Japanese acceleratorphysicists Official Announcement from KEK director A. Suzuki on Super B expected in 2007

  6. The Super B Factory is part of a Unified and Unbiased Attack on New Physics n expts accel, reactor, gm-2, mgeg, etc. LHC, ILC Higgs boson mass and couplings. New particle searches n mass and mixing, CPV, and LFV Lepton sector Propagators New physics Quark sector • LFV, t CPV Flavor mixing, CPV phases Super B Factory, LHCb, Rare K expts, BESIII…

  7. Comparison of Super-B and LHCb • Clean environment  measurements that no other experiment can perform. Examples: CPV in BgfK0, Bgh’K0 for new phases, BgKSp0gfor right-handed currents. • “B-meson beam” technique  access to new decay modes. Example: discover BgKnn. • Measure new types of asymmetries. Example: forward-backward asymmetry in bgsmm, see • Rich, broad physics program including B, t and charm physics. Examples: searches for tgmg and D-D mixing with unprecedented sensitivity. • No other experiment can compete for New Physics reach in the quark sector.

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