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					      Introduction to QuarkNet
for the Vanderbilt University Center

             Ken Cecire
       University of Notre Dame
           kcecire@nd.edu

               Vanderbilt University
                  July 26, 2010
                                          Introduction

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
                  Vanderbilt University
                     July 26, 2010
                                              Introduction

     First LEP, and now LHC, are
buried ~100 m below the surface
  near the Swiss-French border.




                      Vanderbilt University
                         July 26, 2010
                                   Introduction

We are seeing collision events!




           Vanderbilt University
              July 26, 2010
                         Introduction


                        Check out the
                        US /LHC Event of the Week:


                        http://www.uslhc.us/Teachers
                            _and_Students




Vanderbilt University
   July 26, 2010
                                           Introduction


                What is QuarkNet?
•   Physicists, teachers and students
•   Research
•   Cosmic ray e-Lab
•   Masterclass
•   Special workshops
•   more
                   Vanderbilt University
                      July 26, 2010
                                     Introduction

Our QuarkNet centers
                                         Universities/labs
                                         doing particle
                                         physics research

                                         2 physicist mentors

                                         10 teachers

                                         5 workshop days
                                         each year

                                         Special
                                         opportunities

             Vanderbilt University
                July 26, 2010
                                      Introduction
                                         Notre Dame:
Our PI’s and Staff                       Randy Ruchti
                                         Mitch Wayne
                                         Dan Karmgard
                                         Ken Cecire

                                         Fermilab:
                                         Marge Bardeen
                                         Bob Peterson

                                         U. Florida:
                                         Tom Jordan
                                         (Program Coor.)

                                         U. Washington:
                                         Anna Goussiou
              Vanderbilt University
                 July 26, 2010           Kris Whelan
                                                   Introduction

              QuarkNet funding flow
NSF via Notre Dame:                  DOE via Fermilab:
• Teacher stipends                   • Cosmic Ray project
• Center support                     • Masterclass
• Summer research                    • Special programs
• QuarkNet Admin                     • Fermilab services
  (Anne Zakas)
   This is not as clear-cut as it looks: there are overlapping
   wave functions.
                           Vanderbilt University
                              July 26, 2010
                        Introduction




Vanderbilt University
   July 26, 2010
                                                     Introduction

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

                              • The QuarkNet Classroom Detector
                                   – Hardware overview
                                   – Classroom use
                                   – Experiments, measurements             Difference in Absolute Time


                                                                   2000


• Data Analysis                                                    1500


   – Upload, analyze data & save data products

                                                       Frequency
                                                                   1000



   – Share results                                                  500



   – Enter logbook notes     Vanderbilt University
                                                                      0
                                                                       0            10                20


                                 July 26, 2010                                 Time Difference (ns)
                        Introduction




Vanderbilt University
   July 26, 2010
                        Introduction




Vanderbilt University
   July 26, 2010
                                                 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

                         Vanderbilt University
                            July 26, 2010
                        Introduction




Vanderbilt University
   July 26, 2010
                                             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




                     Vanderbilt University
                        July 26, 2010
Vanderbilt University
   July 26, 2010
Vanderbilt University
   July 26, 2010
                                       Introduction, done.

Who Ya Gonna Call? Operators are standing
by…
                      Vanderbilt Mentors:
QuarkNet Staff:
                      Med Webster
Tom Jordan
                      Will Johns
Bob Peterson
                      Paul Sheldon
Kris Whelan       •   Tel: 574-631-3343 (O)
Ken Cecire        •   Tel: 757-897-5296 (M)
                  •   E-Mail: kcecire@nd.edu

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

                            Vanderbilt University
                               July 26, 2010
A look at the Masterclass
      From LEP to LHC




          Vanderbilt University
             July 26, 2010
                                                    Masterclass

                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.




                            Vanderbilt University                             21
                               July 26, 2010
                                                   Masterclass
             Masterclass Day – sample agenda
TIME:              ACTIVITY:
                   Registration & Welcome
8:00-8:30
                   Cloud Chamber Demo
8:30-9:30          Introduction to Particle Physics (Mentor)
9:30-11:00         Tour
                   Introduction to Data Analysis
11:00-12:00
                   (Teacher)
12:00-13:00        Lunch with a Physicist
                   Data Analysis
13:00-15:00
                   Results Transmission
                   EVO Logon
15:00-15:30
                   Questions & Discussion Points Preparation
15:30-16:30        EVO Videoconference
16:30-17:00        Evaluation & Closing
                         Vanderbilt University                   22
                            July 26, 2010
                                                   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.

                           Vanderbilt University
                              July 26, 2010
                         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?




Vanderbilt University
   July 26, 2010
                                                   Masterclass
Generic Detector Design
 •    Cylinders wrapped around the beam pipe
 •    From inner to outer . . .
     • Tracking
     • Magnet
     • Electromagnetic calorimeter
     • Hadronic calorimeter
     • Muon chamber




                           Vanderbilt University
                              July 26, 2010
Vanderbilt University
   July 26, 2010
                                                 Masterclass

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

               2 x 45.5 GeV = 91.1 GeV

               91.1 GeV is the Z mass.



LEP built Z bosons—they
promptly decayed. The detectors
measured the stuff that came out
of the decay.
                         Vanderbilt University
                            July 26, 2010
                                          Masterclass



 Z  2 muons




Z  2 electrons




                  Vanderbilt University
                     July 26, 2010
                        Masterclass

                            What’s what?


                            Z  2 electrons


                            Z  2 muons


                            Z  other stuff




Vanderbilt University
   July 26, 2010
                        Masterclass


                            What’s what?


                            Z  2 electrons


                            Z  2 muons


                            Z  other stuff




Vanderbilt University
   July 26, 2010
                        Masterclass


                            What’s what?


                            Z  2 electrons


                            Z  2 muons


                            Z  other stuff



                            What’s the count?



Vanderbilt University
   July 26, 2010
                                              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!


                      Vanderbilt University
                         July 26, 2010
                        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…


Vanderbilt University
   July 26, 2010
                                   Masterclass, forward

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

                           Vanderbilt University
                              July 26, 2010

				
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