Matter, Energy, Space, Time
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1 Matter, Energy, Space, Time UW UW UW UW UW UW UW UW Trails in Particle Physics Particle Physics at UW-Madison 1
2 Wisconsin program DESY: ep Hamburg, Germany HERA: ZEUS Structure of Matter SLAC: e + e - Stanford, CA Babar: CP Violation FNAL Batavia, IL CDF: pp Energy Frontier MINOS: ν Oscillations CERN: pp Geneva, Switzerland LHC: CMS & ATLAS: Next Energy Frontier Particle Physics at UW-Madison 2
3 LABORATORIES Particle Physics at UW-Madison 3
4 Experimental HEP Broad and diverse program Funding: 50 year history, 2nd largest US university grant Personae Dramatis faculty 9 scientists 10 engineers 3 post-docs 5 administrators 2 technicians 2 grad students 38 Particle Physics at UW-Madison 4
5 Infrastructure Electronics: design engineering prototyping Computing & Networking: graphics analysis display CAD DAQ Condor GRID Computing Mechanical: design precision alignment production Particle Physics at UW-Madison 5
6 Wisconsin Leadership CDF: Forward muon detector, muon drift tube upgrade Babar: Data Acquisition, forward muon system Zeus: Trigger and calorimeter ATLAS: 2nd level trigger, silicon vertex electronics CMS: Trigger and Muon Endcap Particle Physics at UW-Madison 6
7 Current/Future Activities CDF p p D. Carlsmith, M. Herndon L.G. Pondrom FNAL ZEUS e ± p W. H. Smith D.D. Reeder DESY BaBar e + R. Prepost, S. Dasu e - Y. Pan, S.L. Wu SLAC Minos ν A. Erwin FNAL CMS (2007) p p W.H. Smith, D.D. Reeder D. Carlsmith, S. Dasu CERN Atlas (2007) p p Y. Pan S.L. Wu CERN Particle Physics at UW-Madison 7
8 CP Babar Professor R. Prepost Professor S. Dasu Professor Y. Pan Professor S. L. Wu e + e! "b b SLAC: PEP-II Stanford, CA Particle Physics at UW-Madison 8
9 CP Babar Universe is matter dominated. Why? BaBar probes fundamental matter & anti-matter asymmetry (CP-violation) especially as revelaed in matterantimatter oscillations The area of the Unitarity Triangle is a measure of the extent of CP-violation B-B asymmetry Semi-leptonic B decays B-B mixing Measurements of UT angles & sides for consistency check Any deviations New physics
10 Prof. W. Smith Prof. D. Reeder DESY: HERA Hamburg, Germany UW built & operates calorimeter trigger Only lepton-hadron collider ever! Use ep collisions to study quarks and gluons in the proton New: x5 Luminosity upgrade & polarization now running Particle Physics at UW-Madison 10
11 Structure of Matter e γ,w,z e Scattering of electrons from constituent quarks provides an increasingly detailed view of the QCD dynamics inside a proton. p jet remnant Particle Physics at UW-Madison 11
12 Energy Prof. L. Pondrom Prof. D. Carlsmith Prof. M. Herndon Fermilab: Tevatron Batavia, IL UW built & operates muon chambers p p-bar collisions at 2 TeV Particle Physics at UW-Madison 12
13 Energy frontier Today,the highest masses are available in p-pbar collisions at Fermilab. CDF studies W & Z bosons, b & t quarks. Searches continue for new heavy particles, e.g. those req d by supersymmetric theories. CDF: tt=>wbwb W=>e nu W=>e nu b s=>hadrons Particle Physics at UW-Madison 13
14 CDF Results 8 pages of results just in B physics Top Electroweak Exotics Higgs QCD Particle Physics at UW-Madison 14
15 Neutrino Prof. A. Erwin Neutrinos have mass and neutrino flavors are mixed rather like quark flavors. Particle Physics at UW-Madison 15
16 Large Hadron Collider Center of mass Energy Design Luminosity Crossing rate 14 TeV cm -2 s ns (40 MHz) Under construction Turn on 2007 Higgs hunters
17 New Atlas Prof. Y Pan Prof. S.L. Wu CERN: LHC Geneva, Switzerland pp at 14 TeV Particle Physics at UW-Madison 17
18 The ATLAS detector is being assembled in the pit, about 100 m below surface Detector components lowered through the shafts ~50m protons protons ~30m
19 Barrel calorimeter already in final position: Barrel Calorimeter
20 New CMS Prof. S. Dasu Prof. D. Carlsmith Prof. W. Smith Prof. D. Reeder CERN: LHC Geneva, Switzerland: pp at 14 TeV m m m m m Y! X Towards Center of LHC PARA /11/94 jlb Transverse View! Particle Physics at UW-Madison 20
21 Search for Standard Model Higgs 120 < m H < 1000 GeV Search for Supersymmetry and other physics beyond the Standard Model quark/lepton compositeness new W /Z bosons or heavy quarks, leptons extra Dimensions? Physics at LHC Particle Physics at UW-Madison 21
22 HEP Students at work DESY DESY DESY DESY Fermilab DESY Doing Frontier Physics all over the world! CERN Particle Physics at UW-Madison 22
23 Summary Lots of opportunity Good Physics & Good Travel & Communication skills & Good friends & Good jobs fun and a rewarding education Welcome to the adventure! Particle Physics at UW-Madison 23
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