This page is primarily for mentors as they design the masterclass for their institutes.

First things: Hypatia and the data

Each computer should have the latest version of the Hypatia program ready to run and at least one dataset of 50 events. 

Download:

• Hypatia 7.4 for Masterclass 2014

These must be uncompressed and placed in an easy-to-find folder in each machine.

Grab the data:

Each number corresponds to a group of datasets which should be enough for an entire institute. Each institute is assigned two of these, a primary group and a backup group in case of a large number of students; they are listed in the table below in that order. Within each numbered data group are datasets of 50 events, labelled by letters, A-T. Find your institute and download one set to each computer. You do not need to uncompress these. 

E-mail for data login and password.

Familiarize yourself:

• ATLAS Instructions
• ATLAS Masterclass Website

Share these with students when appropriate!

Students arrive

This should occupy the first 30-60 min

• Registration: please have students sign in (sample registration sheet)
• Gateway experience: have a cloud chamber, e/m apparatus, or something similar to whet interest
• Ice-breaker activity: students in small inhomogeneous groups create 1-2 good questions about particle physics, ATLAS, and/or LHC.

Shift training

Get students ready for their data analysis shift! This will take about 3 hours, though parts of it can be moved to other times of the day.

Mentor presentation, 30-60 min:

• keep it interactive - ask questions about prior experience, shows of hands, wild guesses, etc.
• give students something to touch, e.g. a carbon-fiber straw from TRT
• connect to classroom prep
• touch on standard model
• talk about your research
• template

Tour, 30-60 min:

• adds much to the day - often most popular part
• if you have an accelerator to show, great!
• if not: any interesting labs, even if not particle physics, are still great
• have enthusiastic grad students around to chat and explain

Analysis Prep (30-60 min):

• Have a teacher lead this if practical
• Use/adapt the data analysis slides.
• Important: go through 5-10 events from Group 1 Set A on the projector with the students. Show them how to:
  • Turn on Hypatia
  • Get the data
  • Set the pt cut
  • Put tracks into the invariant mass window
  • Save their data and upload to OPloT. (Show the 01-Jan-2012 sample.)
  • Identify events with them - ask them what is what. 

Lunch with a Physicist (30-60 min):

• This is also very popular and a great way for students to interact and get comfortable with scientists.

Data Analysis

This is the heart of the masterclass and takes 60-90 min. There should be 2 students at each computer, cooperating to get their data measured. Mentors, tutors, and teachers should circulate to help the students analyze the events and work out any problems they have. Don't give them answers. Help them figure things out and learn to see data as scientist does. Remind them that each event is a candidate Z, Higgs, or something else - not a definitively identified particle.

Here are some items that can help them (and you):

• Data Tally Sheet
• Cheat sheet
• ATLAS Event Guide

Students will need to upload to OPlot. Help them with this.

• OPloT

Sharing Results

This takes a little over one hour. Both parts are important.

Discussion (30-45 min):

• Mentor leads, students interact
• Look at combined mass plots for your institute in OPloT: dilepton, 4-lepton, diphoton
• Help students point out peaks, bumps, significance; discuss results.
• Each institute is assigned another institute to question: look at their data as well. Students should form questions and comments.

Videoconference (30-45 min):

• FNAL institutes: connect to Indico page (see table above)
• Someone should log into the videoconference 15 min early to be sure the connection is established. See the Schedules page.
• Follow the agenda on Indico:
  • Introductions and warm-up
  • Institute reports; questions from other institutes (assigned); questions by moderators
  • Discussion, Q&A, and wrap-up
• It is good to have a student spokesperson but try to arrange so it is not too hard for another student to make a comment or ask a question.

After this, we have post-discussion and closeout. Have a nice day.

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Evaluation data has shown that students who have been prepared for masterclasses report getting significantly more out of them.

Prior Knowledge for Masterclasses / Classroom Prep Objectives

Meeting these objectives will assure that students are well prepared for the masterclass.

• Describe the claim and indirect evidence in Rutherford's or another key experiment.
• Identify the peak in a histogram and explain what it means.
• Describe how quarks combine to form mesons and baryons.
• Apply conservation rules to measurements to provide evidence for unobserved particles.

Suggested Activities

Particle physics research requires the use of indirect evidence to support claims.
Rolling with Rutherford
Students will be able to:

• Describe the claim and indirect evidence in Rutherford’s experiment.
• Identify the peak in a histogram and explain what it means.

The Standard Model is the current theoretical framework for our understanding of matter.
Quark Workbench (instructions)
Students will be able to:

• Describe how quarks combine to form mesons and baryons.

The behavior of particles is governed by conservation laws and mass-energy conversion.

Choose one or both:

• Mass Calc: Z
• Top Quark Mass Reconstruction

Students will be able to:

• Apply conservation rules to measurements to provide evidence for unobserved particles.

Additional Resources

• ATLAS Masterclass website
• CMS videos
• ATLAS videos
• The Particle Adventure
• Bubble Chamber Activity
• Hands-on CERN

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