High Energy Physics - University of Oregon
High Energy Physics - University of Oregon
High Energy Physics - University of Oregon
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<strong>High</strong> <strong>Energy</strong><br />
<strong>Physics</strong><br />
at the<br />
<strong>University</strong> <strong>of</strong><br />
<strong>Oregon</strong><br />
• Theory<br />
• Accelerator-based<br />
• Non-accelerator (LIGO)
Standard Model<br />
What is the universe<br />
made <strong>of</strong><br />
How does it interact<br />
Standard Model very<br />
successful, but incomplete…
Outstanding Questions<br />
What causes mass<br />
What breaks EW symmetry<br />
Are there additional<br />
symmetries (supersymmetry)<br />
Are there extra, compactified<br />
space-time dimensions<br />
Why matter (not antimatter)<br />
What is dark matter<br />
And many more…
Experimental HEP Faculty<br />
Jim Brau<br />
Ray Frey<br />
David Strom<br />
Eric Torrence
Theoretical HEP Faculty<br />
Nilendra Deshpande<br />
Dave Soper<br />
Stephen Hsu<br />
Graham Kribs
HEP Accelerator Labs<br />
NuTev<br />
BaBar<br />
SLD<br />
Opal<br />
Atlas<br />
Truly global field<br />
U<strong>of</strong>O well connected
<strong>Oregon</strong> Experiments Past<br />
OPAL<br />
(CERN)<br />
SLD<br />
(SLAC)<br />
NuTeV (FNAL)
<strong>Oregon</strong> Experiments (Running)<br />
<strong>High</strong> Luminosity<br />
Asymmetric e + e -<br />
B-Factory<br />
(SLAC)<br />
Gravity Wave<br />
Interferometer<br />
(Hanford)
ATLAS at CERN (Next)<br />
Discoveries at EW scale - 2008
1 TeV Linear Collider (Future)<br />
Precision machine<br />
Compliments LHC<br />
Conceptual design started<br />
Detector R&D underway<br />
Interesting for new students<br />
e + e - -> HZ<br />
U <strong>Oregon</strong> group<br />
is VERY involved
<strong>Oregon</strong> Students<br />
• Current Students<br />
Jan Strube (BaBar)<br />
R. Rahmat (BaBar)<br />
Nick Blount (BaBar)<br />
Jeff Kolb (BaBar(<br />
BaBar)<br />
Emelie Harstad (LIGO)<br />
2-44 new Atlas students<br />
• Recent Graduates<br />
Dave Mason (06-NuTev)<br />
Fermilab<br />
Masahiro Ito (06-LIGO) UO<br />
Rauha Rahkola (06-LIGO)<br />
Chris Potter (05-BaBar) McGill<br />
Sean Walston (04-SLD) LLNL<br />
Matt Langston (03-SLD) industry<br />
Dae Hwan Kim (01-OPAL) industry<br />
• Postdocs & Scientists<br />
<br />
<br />
<br />
<br />
<br />
Isabel Leonor (LIGO)<br />
Robert Sch<strong>of</strong>ield (Senior Scientist,LIGO)<br />
Olya Igonkina (BaBar/Atlas)<br />
Minghui Lu (BaBar)<br />
Nick Sinev (Senior Scientist, BaBar, , ILC)
BaBar <strong>Physics</strong><br />
<strong>High</strong> Luminosity<br />
Asymmetric e + e -<br />
300M BB, ττ since 2000<br />
double this by 08!<br />
Measure CP violation<br />
Matter-antimatter<br />
Rare B decays<br />
=> New physics<br />
Tau lepton physics
PEP-II Asymmetric B-Factory
Rare B Decays<br />
b -> s γ (penguins)<br />
B 0 -> τ + τ − (Chris Potter Thesis)<br />
Forbidden in SM<br />
at tree level<br />
<strong>High</strong>ly sensitive to new<br />
physics (eg: SUSY)<br />
Measure branching<br />
fractions to 10 -6 or better
Rare Tau Decays<br />
$ Neutrino data indicates<br />
Lepton Flavor<br />
Violation: ν µ<br />
ν τ<br />
$ Search for charged<br />
version<br />
$ Signature: 3 charged<br />
leptons with no<br />
missing momentum<br />
τ −<br />
µ − µ +<br />
τ − −> µ − µ + µ − µ −<br />
World’s best limits: B(τ->lll) < (1-3) x10 -7 (90% CL)
Large Hadron Collider<br />
Proton - Proton Collisions<br />
14 TeV max CMS<br />
27 km ring at CERN (LEP)<br />
10 34 cm -2 s -1 design luminosity<br />
<strong>Physics</strong> program starting 2008
ATLAS <strong>Physics</strong><br />
Higgs Sector<br />
EWSB<br />
SUSY<br />
Dark Matter<br />
top quark<br />
Other Exotica<br />
The Unknown<br />
Simulated mini-Black Hole
Atlas Detector Construction
Atlas Trigger<br />
2m<br />
2.5 µs<br />
2e<br />
~10 ms<br />
~ sec.<br />
H →2e + 2m
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