collider detector at fermilab sung-hyun chang (shchang@hep.knu.ac.kr) high energy physics lab. knu

Collider Detector at Fermilab

• Sung-hyun chang (shchang@hep.knu.ac.kr)

• 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

1230.1Integrated

Luminosity (fb-

1)

153030Luminosity Region (cm)

51-21-2Interactions per crossing

20-50101.6 (typical)

>3.5 (record)

Luminosity(x1031 cm-2 sec-

1)

1323963500Bunch Spacing (nsec)

Run IIb(2004-7)

Run IIa(2000-3)Tavatr

onEnergy(TeV) 1.8 2 2

Run Ib(1994-96)

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.CDFDZero

● Astrophysics experiments explore the interactions of quarks and the cosmos

● Fermilab contributes to the Large Hadron Collider at CERN.

● TheoryTheory GroupTheoretical Astrophysics Group

CDF STATUS

Shape of CDF

Shape of CDF

Silicon and drift chamber trackers

Central muonCentral calorimeters

Solenoid

Front endTriggerDAQOfflineTOF

The CDF Detector

Particle Detector

CDF Data taking Picture

CalorimeterSide View Tracking+Calorim

eter

3D Tracking Tracking(SVX+COT)

3D Calorimeter

The CDF Collaboration

3 Universities

3 Natl. Labs28 Universities 1 Universities 1 University

5 Universities1 Research Lab

1 Research Lab6 Universities

1 University1 University1 University 4 Universities 2 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

● Bs/Bs Flavor Oscillations

● CP studies in Bs 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 :H

• Pythia, cdfsoft2 4.3.0 used

Simulation of H+ channel

(MC)

GeV130Hm

hadronτotherthelepton,τone

H

bbHHtt