1. Status of Minerva Masterclass
Reminder
Aim
Classification of We, W, Zee, Z, jets event
One H4l, l=e, event hidden in complete dataset
Each group of students have to analyse 20 (different) events
First ones easier than latter ones
Wrap-up: look at We/W, Zee/Z and W/Z ratio
Tool
Atlantis but using a slightly simplified configuration file
So far simulated events were used - For 2011 data events are available (besides Higgs event...)
developed jointly by RAL and Birmingham
One of the 1st LHC based Masterclasses available
1st use in 2008 and since then improved
Since then extensively used in UK, Canada and US
To be used by various UK institutes during Masterclasses this month
Minerva, Feb 9, 2011
T. Laughlin, M. Stockton, P. Watkins, M. Wielers

2. T. Laughlin, M. Stockton, P. Watkins, M. Wielers
Example: We event
Minerva, Feb 9, 2011
T. Laughlin, M. Stockton, P. Watkins, M. Wielers

3. T. Laughlin, M. Stockton, P. Watkins, M. Wielers
Wrap-up
We/W, Zee/Z works out pretty well, most groups end up with number within error
W/Z ratio typically too low, students tend to migrate W into Z events
Minerva, Feb 9, 2011
T. Laughlin, M. Stockton, P. Watkins, M. Wielers

4. T. Laughlin, M. Stockton, P. Watkins, M. Wielers
What is new
Data events now available (see next slide)
Updated entry page
Updated documentation
Introductory slides
Filled out result sheets for tutors available on demand
Small changes in Atlantis doc, example sheet
Updated Atlantis layout
Changes are small, but makes it a bit neater
If missing ET is small, it‘s no longer displayed
Muon hits are now in light blue (as in data we have more ‘fake‘ muon hits
Muons now show inner detector and muon track seperately compared to one combined track
Minerva, Feb 9, 2011
T. Laughlin, M. Stockton, P. Watkins, M. Wielers

5. T. Laughlin, M. Stockton, P. Watkins, M. Wielers
Data events
W and Z events stripped out using official cut flow as used for published results
Event sample contains 399 events with ~55% of W/Z‘s and 45% of jets
W and Z are mixed in the right proportion
Event samples availabe for 15 or 20 groups of students
Web page
We
Z
Minerva, Feb 9, 2011
T. Laughlin, M. Stockton, P. Watkins, M. Wielers

6. Web based Minerva version
This version is stand-alone and completely web based
It contains online tutorial
1st 5 events are for student to check that he understood the basics
Result sheet will tell him how many events he/she got right
20 events to analyse (incl. one Higgs event)
After analysis, results checked online
Minerva configuration file comes with default Atlantis release
Compared to Masterclass the event displays used are “easy“ ones
Event displays are from data now!
This application is well suited for classroom usage or younger students (14-15 years)
Available in English and French
German and Italian being added right now
Java scripts being simplified right now
Will ease maintenance and addition of new languages
Minerva, Feb 9, 2011
T. Laughlin, M. Stockton, P. Watkins, M. Wielers

7. T. Laughlin, M. Stockton, P. Watkins, M. Wielers
Online Tutorial
Minerva, Feb 9, 2011
T. Laughlin, M. Stockton, P. Watkins, M. Wielers

8. Result sheet and online verification
Minerva, Feb 9, 2011
T. Laughlin, M. Stockton, P. Watkins, M. Wielers