Vanderbilt University July 26, 2010 Introduction to QuarkNet for the Vanderbilt University Center...

Vanderbilt UniversityJuly 26, 2010

Introduction to QuarkNet for the Vanderbilt University Center

Ken Cecire

University of Notre Dame

[email protected]


A word from our sponsors…

• Particle physics

• Education reform

• Large Hadron Collider– Highest energy– Coldest too– On the edge of new discoveries

• More cool experiments

Introduction


First LEP, and now LHC, are buried ~100 m below the surface

near the Swiss-French border.

Introduction


We are seeing collision events!

Introduction


Check out the

US /LHC Event of the Week:

http://www.uslhc.us/Teachers_and_Students

Introduction


What is QuarkNet?

• Physicists, teachers and students• Research• Cosmic ray e-Lab• Masterclass• Special workshops• more

Introduction


Our QuarkNet centersUniversities/labs doing particle physics research

2 physicist mentors

10 teachers

5 workshop days each year

Special opportunities

Introduction


Our PI’s and StaffNotre Dame:Randy RuchtiMitch WayneDan KarmgardKen Cecire

Fermilab:Marge BardeenBob Peterson

U. Florida:Tom Jordan(Program Coor.)

U. Washington:Anna GoussiouKris Whelan

Introduction


QuarkNet funding flow

NSF via Notre Dame:

• Teacher stipends

• Center support

• Summer research

• QuarkNet Admin (Anne Zakas)

DOE via Fermilab:

• Cosmic Ray project

• Masterclass

• Special programs

• Fermilab services

This is not as clear-cut as it looks: there are overlapping wave functions.

Introduction


Introduction


0 10 200

500

1000

1500

2000

Time Difference (ns)

Fre

qu

en

cy

Difference in Absolute Time

• Cosmic Rays– Sources– Composition, energy spectrum– Detection– Current experiments

• The QuarkNet Classroom Detector– Hardware overview– Classroom use– Experiments, measurements

• Data Analysis– Upload, analyze data & save data products– Share results– Enter logbook notes

Introduction


Introduction


CERN/EPPOG Masterclass• Students analyze

real data from CERN• Work with particle

physicists• Web conference

• Full day of particle physics for students and teachers

Introduction


Introduction


Particle Physics is International• The cosmic ray e-Lab in U.S. plus Asia and Europe• Masterclass spans Europe, South and North America

(esp. U.S.); also reaches Japan and South Africa

Introduction


Who Ya Gonna Call? Operators are standing by…

Vanderbilt Mentors:

Med Webster

Will Johns

Paul Sheldon

QuarkNet Staff:

Tom Jordan

Bob Peterson

Kris Whelan

Ken Cecire

Also see: http://quarknet.fnal.gov/staff.shtml

• Tel: 574-631-3343 (O)

• Tel: 757-897-5296 (M)

• E-Mail: [email protected]

Introduction, done.


A look at the MasterclassFrom LEP to LHC


21

What is the Masterclass?• As in a masterclass in the arts, students work with an expert.

• Expert = particle physicist.

• Instead of, say, a violin, the subject is particle physics data analysis.

Masterclass


22

Masterclass Day – sample agendaTIME: ACTIVITY:

8:00-8:30Registration & Welcome

Cloud Chamber Demo

8:30-9:30 Introduction to Particle Physics (Mentor)

9:30-11:00 Tour

11:00-12:00Introduction to Data Analysis

(Teacher)

12:00-13:00 Lunch with a Physicist

13:00-15:00Data Analysis

Results Transmission

15:00-15:30EVO Logon

Questions & Discussion Points Preparation

15:30-16:30 EVO Videoconference

16:30-17:00 Evaluation & Closing

Masterclass


Standard Model• Quarks combine to make

hadrons (protons, neutrons,…)

• Leptons – electron and its heavier cousins – and the small, unseen neutrinos

• Force carriers (the bosons)

• Heavier particles can “decay” into lighter particles.

Masterclass


• What’s that, up in the sky?

• What’s it doing?

• What time is it?

• How do you know?

• Are you sure?

• What does this have to do with particle physics?

Masterclass


Generic Detector Design• Cylinders wrapped around the beam pipe• From inner to outer . . .

• Tracking

• Magnet

• Electromagnetic calorimeter

• Hadronic calorimeter

• Muon chamber

Masterclass


DELPHI at LEP: Our Z LabThe beam particles each had a total energy of 45.5 GeV:

LEP built Z bosons—they promptly decayed. The detectors measured the stuff that came out of the decay.

2 x 45.5 GeV = 91.1 GeV

91.1 GeV is the Z mass.

Masterclass


Z 2 muons

Z 2 electrons

Masterclass


What’s what?

Z 2 electrons

Z 2 muons

Z other stuff

Masterclass


What’s what?

Z 2 electrons

Z 2 muons

Z other stuff

What’s the count?

Masterclass


Next steps for students:

Practice.

Talk with your fellow physicists.

Make teams of two.

Analyze up to 1000 events (as a group).

Report! Rapport! Rejoice! Relax!

Masterclass


What’s new?• LHC Masterclass

• Students look at Z- and W-decays

• Test the new accelerator and detectors

• This is what physicists are doing right now…

Masterclass


The Plan• Express interest/preferences

• Orientation

• Video/audio test

• Prepare students

• Masterclass here in March

• Participate with– Around 20 QN centers

– Hundreds of MC institutes worldwide

– 2 to 4 Institutes on your day

Masterclass, forward

Vanderbilt University July 26, 2010 Introduction to QuarkNet for the Vanderbilt University Center...

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