Collider Detector at Fermilab Sung-hyun chang High Energy Physics lab. KNU

Contents Introduction of Fermilab History of Fermilab Fermilab Mission Tevatron Parameter Experiment at Fermilab Introduction of CDF Shape of CDF Detector CDF Data taking Picture The CDF Collaboration CDF RUN II Physics Example (Simulation of H+ channel) Cdfsoft code

History of Fermilab ● originally named the National Accelerator Laboratory ● On May 11, 1974, the laboratory was renamed ● Two major components of the Standard Model of Fundamental Particles and Forces were discovered at Fermilab – the bottom quark (May-June 1977) – top quark (February 1995). – the first direct observation of the tau neutrino In July 2000

Fermilab Mission “Fermi National Accelerator Laboratory advances the understanding of the fundamental nature of matter and energy by providing leadership and resources for qualified researchers to conduct basic research at the frontiers of high energy physics and related disciplines. “ in Fermilab web site

Main Injector  p source Booster CDF DØ

Integrated Luminosity (fb -1 ) 1530 Luminosity Region (cm) 51-2 Interactions per crossing (typical) >3.5 (record) Luminosity (x10 31 cm -2 sec -1 ) Bunch Spacing (nsec) Run IIb (2004-7) Run IIa (2000-3) Tavatron Energy(TeV)1.822 Run Ib ( )

Experiment at Fermilab ● The best chance for a discovery in the next five years that would change the direction of particle physics is at Fermilab experiments. CDF DZero ● Astrophysics experiments explore the interactions of quarks and the cosmos ● Fermilab contributes to the Large Hadron Collider at CERN. ● Theory Theory Group Theoretical Astrophysics Group

CDF STATUS

Shape of CDF

● W-boson physics ● Gamma*/Z physics ● Electroweak trilinear gauge boson couplings ● Z -> b_jet + bbar_jet ● SM/MSSM Higgs ● SUSY ● Extra gague bosons ● Leptoquark searches ● Compositeness searches ● Technicolor searches ● Monopole search Silicon and drift chamber trackers Central muonCentral calorimeters Solenoid Front end Trigger DAQ Offline TOF The CDF Detector

Particle Detector

CDF Data taking Picture Calorimeter Side View Tracking+Calorimeter 3D TrackingTracking(SVX+COT) 3D Calorimeter

The CDF Collaboration 3 Universities 3 Natl. Labs 28 Universities 1 Universities 1 University 5 Universities 1 Research Lab 6 Universities 1 University 4 Universities2 Research Labs 12 countries (Asia, Europe, North America), 58 institutions, 581 physicists

CDF RUN II PHYSICS Electroweak ● W-boson physics ● Gamma*/Z physics ● Electroweak trilinear gauge boson couplings ● Z -> b_jet + bbar_jet QCD ● High Transverse Energy Jets ● Testing QCD Scaling Violations ● W/Z + Jets ● Jet Shapes and Fragmentation ● Heavy Flavor Production ● Double Parton Scattering ● Diffractive physics and Pomeron Studies ● Direct Photon Production

CDF RUN II PHYSICS B Physics ● Measurement of sin2  ● Measurement of sin2  ● B s /B s Flavor Oscillations ● CP studies in B s  J/  ● Search for rare B decay Top ● Cross Section ● Mass ● Branching ratios ● Kinematics, production properties ● Single top Exotics ● SM/MSSM Higgs ● SUSY ● Extra gague bosons ● Leptoquark searches ● Compositeness searches ● Technicolor searches ● Monopole search

Simulation of channel : Pythia, cdfsoft used Simulation of H + channel (MC)