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Standard ModelStandard Model
What is the universe What is the universe made of?made of?
How does it interact?How does it interact?
Standard Model veryStandard Model verysuccessful, but incomplete…successful, but incomplete…
Outstanding QuestionsOutstanding Questions
What causes mass?What causes mass? What breaks EW symmetry?What breaks EW symmetry? Are there additional Are there additional
symmetries to nature?symmetries to nature? Are there extra dimensions?Are there extra dimensions? Why matter (not antimatter)?Why matter (not antimatter)? What is dark matter?What is dark matter? And many more…And many more…
Experimental HEP FacultyExperimental HEP Faculty
Jim BrauJim Brau Ray FreyRay Frey
David StromDavid Strom Eric TorrenceEric Torrence
Theoretical HEP FacultyTheoretical HEP Faculty
Rudy HwaRudy Hwa Nilendra DeshpandeNilendra Deshpande
Dave SoperDave Soper Stephen HsuStephen Hsu
HEP LaboratoriesHEP Laboratories
BaBarBaBarSLDSLD
NuTevNuTev
OpalOpal
Truly global fieldTruly global fieldUofO well connectedUofO well connected
Oregon Experiments (Running)Oregon Experiments (Running)
High LuminosityHigh LuminosityAsymmetric eAsymmetric e++ee--
B-FactoryB-Factory(SLAC)(SLAC)
Gravity WaveGravity WaveInterferometerInterferometer(Hanford)(Hanford)
Linear Collider (Future)Linear Collider (Future)
ee++ee-- -> HZ -> HZPrecise Higgs studiesPrecise Higgs studiesSupersymmetrySupersymmetryExtra dimensions or ???Extra dimensions or ???Precision electroweakPrecision electroweakInteresting for new studentsInteresting for new students
U Oregon groupU Oregon groupis is VERYVERY involved involved
BaBar PhysicsBaBar Physics
High LuminosityHigh Luminosity Asymmetric eAsymmetric e++ee--
100M BB, 100M BB, already! already!
Measure CP violationMeasure CP violation
Matter-antimatterMatter-antimatter Rare B decaysRare B decays
New physicsNew physics Tau lepton physicsTau lepton physics
CP Violation in BCP Violation in B00 decays decays
Fully reconstruct one Fully reconstruct one BB00 (or B (or B00) as a tag) as a tag
Reconstruct second B Reconstruct second B in CP eigenstatein CP eigenstate (J/ (J/S S vs. J/vs. J/LL))
Time dependence Time dependence => CP violation=> CP violation
ee-- (9 GeV) (9 GeV) ee++ (3 GeV) (3 GeV)
= 0.56= 0.56
BBtagtag BBCPCP
zz ~250 ~250 mm
Rare B DecaysRare B Decays
Forbidden in SM Forbidden in SM at tree levelat tree level
Highly sensitive to new Highly sensitive to new physics (eg: SUSY)physics (eg: SUSY)
Measure branching Measure branching fractions to 10fractions to 10-6-6 or better or better
Many channels, good Many channels, good thesis topic…thesis topic…
b -> s b -> s (penguins)(penguins)
BB00 -> ->
Tau Magnetic MomentTau Magnetic Moment
Expected Expected aa ~ 0.001 ~ 0.001
Observed |Observed |aa Use decay momenta to Use decay momenta to
analyze tau spinanalyze tau spin Measure Measure spin spin
correlationscorrelations Sensitive to new physicsSensitive to new physics
++ + …+ …
aa = (g= (g-2)/2 = 0 + -2)/2 = 0 + /2/2 + … + …
TensorTensorVectorVector
Eve
nts
Eve
nts
MomentumMomentum
Oregon Students + PostDocsOregon Students + PostDocs SLACSLAC
Chris Potter (BaBar)Chris Potter (BaBar) Matt Langston (SLD)Matt Langston (SLD) Olya Igonkina (BaBar postdoc)Olya Igonkina (BaBar postdoc) Nick Sinev (senior scientist)Nick Sinev (senior scientist)
HanfordHanford Masahiro Ito (LIGO)Masahiro Ito (LIGO) Rauha Rahkola (LIGO)Rauha Rahkola (LIGO) Robert Schofield (LIGO postdoc)Robert Schofield (LIGO postdoc)
OregonOregon Dave Mason (NuTev)Dave Mason (NuTev) Sean Walston (SLD)Sean Walston (SLD) Isabel Leonor (LIGO postdoc)Isabel Leonor (LIGO postdoc)
Newer StudentsNewer Students Nick BlountNick Blount Jeffrey EarlyJeffrey Early Jan StrubeJan Strube Brian StubbsBrian Stubbs Rahmat RahmatRahmat Rahmat
Stable funding (DOE/NSF), serious students welcomeStable funding (DOE/NSF), serious students welcome
HEP Grad Student EducationHEP Grad Student Education Quantum MechanicsQuantum Mechanics RelativityRelativity ComputingComputing ProgrammingProgramming Analysis SkillsAnalysis Skills Advanced StatisticsAdvanced Statistics Simulation MethodsSimulation Methods Hardware TechniquesHardware Techniques ElectronicsElectronics Presentation SkillsPresentation Skills Collaboration SkillsCollaboration Skills
Very Broad EducationVery Broad Education Useful in ‘real world’Useful in ‘real world’ Can follow interestsCan follow interests ‘‘Apprentice’ system Apprentice’ system
Greatly rewards motivated individualsGreatly rewards motivated individuals
LHC
HEP Accelerator TimelineHEP Accelerator Timeline
Neutrino experimentsNeutrino experiments Particle astrophysicsParticle astrophysics LIGOLIGO
20002000 20052005 20102010
SLDSLD
OPALOPAL
BaBar/Belle
Tevatron IITevatron II
NLC?
20152015
The future of High EnergyThe future of High EnergyParticle Physics is brightParticle Physics is bright