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High Energy Physics. at the University of Oregon. Accelerator-based Non-accelerator Theory. 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? - PowerPoint PPT Presentation
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High Energy High Energy PhysicsPhysics
at theat the
University of University of OregonOregon • Accelerator-basedAccelerator-based
• Non-acceleratorNon-accelerator• TheoryTheory
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
Nilendra DeshpandeNilendra Deshpande
Dave SoperDave Soper Stephen HsuStephen Hsu
HEP Accelerator LabsHEP Accelerator Labs
BaBarBaBarSLDSLD
NuTevNuTev
OpalOpal
Truly global fieldTruly global fieldUofO well connectedUofO well connected
Oregon Experiments (Finishing)Oregon Experiments (Finishing)
Oregon Experiments (Running)Oregon Experiments (Running)
High LuminosityHigh LuminosityAsymmetric eAsymmetric e++ee--
B-FactoryB-Factory(SLAC)(SLAC)
Gravity WaveGravity WaveInterferometerInterferometer(Hanford)(Hanford)
1 TeV Linear Collider (Future)1 TeV 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
Oregon LC Involvement Oregon LC Involvement (ALCPG)(ALCPG)
BrauBrau US exec committee US exec committee
co-chairco-chair Vertex Detectors Vertex Detectors
convenerconvener StromStrom
New Physics New Physics convenerconvener
CalorimetryCalorimetry
FreyFrey Calorimetry Calorimetry
convenerconvener
TorrenceTorrence Beam Beam
Instrumentation Instrumentation convenorconvenor
Oregon Students + PostDocsOregon Students + PostDocs SLACSLAC
Jan Strube (BaBar)Jan Strube (BaBar) Olya Igonkina (BaBar postdoc)Olya Igonkina (BaBar postdoc) Minghui Lu (BaBar postdoc)Minghui Lu (BaBar postdoc) Nick Sinev (senior scientist)Nick Sinev (senior scientist)
HanfordHanford Masahiro Ito (LIGO/UO)Masahiro Ito (LIGO/UO) Rauha Rahkola (LIGO/UO)Rauha Rahkola (LIGO/UO) Robert Schofield (LIGO postdoc)Robert Schofield (LIGO postdoc)
OregonOregon Dave Mason (NuTev)Dave Mason (NuTev) Sean Walston (SLD)Sean Walston (SLD) Chris Potter (BaBar)Chris Potter (BaBar) Isabel Leonor (LIGO postdoc)Isabel Leonor (LIGO postdoc)
Newer StudentsNewer Students Nick BlountNick Blount Jeffrey EarlyJeffrey Early Brian StubbsBrian Stubbs RahmatRahmat Eric FitzgeraldEric Fitzgerald
Stable funding (DOE/NSF), serious students welcomeStable funding (DOE/NSF), serious students welcome
BaBar PhysicsBaBar Physics High LuminosityHigh Luminosity Asymmetric eAsymmetric e++ee--
200M BB, 200M BB, since sinceNov 99, double by 06!Nov 99, double by 06!
Measure CP violationMeasure CP violationMatter-antimatterMatter-antimatter
Rare B decaysRare B decays=> New physics=> New 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 topics…thesis topics…
b -> s b -> s (penguins)(penguins)
BB00 -> -> (Chris Potter Thesis)(Chris Potter Thesis)
Rare Tau DecaysRare Tau Decays
Neutrino data indicates Neutrino data indicates Lepton Flavor Lepton Flavor Violation: Violation: <=> <=>
Search for charged Search for charged versionversion
Signature: 3 charged Signature: 3 charged leptons with no leptons with no missing momentummissing momentum
World’s best limits: B(World’s best limits: B(->lll) < (1-3) x10->lll) < (1-3) x10-7-7 (90% CL) (90% CL)
Local ActivitiesLocal Activities
BaBar RPC TeststandBaBar RPC TeststandBeginning Grad and Beginning Grad and
UG detector workUG detector work NLC Calorimeter NLC Calorimeter
DevelopmentDevelopment NLC Physics StudiesNLC Physics Studies NLC Beam NLC Beam
Instrumentation Instrumentation PrototypesPrototypes
QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.
QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.
SiW Calorimetry for LCSiW Calorimetry for LC•Large Area (6” Si)Large Area (6” Si)•5 mm hex pixel5 mm hex pixel•Integrated ReadoutIntegrated Readout•Cheap(ish)Cheap(ish)
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