High Energy Physics at the University of Oregon
Standard Model What is the universe made of? How does it interact? Standard Model very successful, but incomplete…
Outstanding Questions What causes mass? What breaks EW symmetry? Are there additional symmetries to nature? Are there extra dimensions? Why matter (not antimatter)? What is dark matter? And many more…
Experimental HEP Faculty Jim Brau Ray Frey David Strom Eric Torrence
Theoretical HEP Faculty Rudy Hwa Nilendra Deshpande Dave Soper Stephen Hsu
HEP Laboratories BaBarSLD NuTev Opal Truly global field UofO well connected
Oregon Experiments (Finishing)
Oregon Experiments (Running) High Luminosity Asymmetric e + e - B-Factory(SLAC) Gravity Wave Interferometer(Hanford)
Linear Collider (Future) e + e - -> HZ Precise Higgs studies Supersymmetry Extra dimensions or ??? Precision electroweak Interesting for new students U Oregon group is VERY involved
BaBar Physics High Luminosity Asymmetric e + e - 100M BB, already! Measure CP violation Matter-antimatter Rare B decays New physics Tau lepton physics
CP Violation in B 0 decays Fully reconstruct one B 0 (or B 0 ) as a tag Reconstruct second B in CP eigenstate (J/ S vs. J/ L ) Time dependence => CP violation e - (9 GeV) e + (3 GeV) = 0.56 B tag B CP zzzz ~250 m
Rare B Decays Forbidden in SM at tree level Highly sensitive to new physics (eg: SUSY) Measure branching fractions to or better Many channels, good thesis topic… b -> s (penguins) B 0 ->
Tau Magnetic Moment Expected a ~ Observed |a Use decay momenta to analyze tau spin Measure spin correlations Sensitive to new physics + + … a = (g -2)/2 = 0 + /2 + … TensorVector Events Momentum
Oregon Students + PostDocs SLAC SLAC Chris Potter (BaBar) Matt Langston (SLD) Olya Igonkina (BaBar postdoc) Nick Sinev (senior scientist) Hanford Hanford Masahiro Ito (LIGO) Rauha Rahkola (LIGO) Robert Schofield (LIGO postdoc) Oregon Oregon Dave Mason (NuTev) Sean Walston (SLD) Isabel Leonor (LIGO postdoc) Newer Students Nick Blount Jeffrey Early Jan Strube Brian Stubbs Rahmat Rahmat Stable funding (DOE/NSF), serious students welcome
HEP Grad Student Education Quantum Mechanics Relativity Computing Programming Analysis Skills Advanced Statistics Simulation Methods Hardware Techniques Electronics Presentation Skills Collaboration Skills Very Broad Education Very Broad Education Useful in ‘real world’ Useful in ‘real world’ Can follow interests Can follow interests ‘Apprentice’ system ‘Apprentice’ system Greatly rewards motivated individuals
LHC HEP Accelerator Timeline Neutrino experiments Neutrino experiments Particle astrophysics Particle astrophysics LIGO LIGO SLD OPAL BaBar/Belle Tevatron II NLC? 2015 The future of High Energy Particle Physics is bright