ttt international masterclasses with atlas data atlas outreach meeting, cern, 11.10.2011 uta bilow,...
TRANSCRIPT
ttt
International Masterclasses with ATLAS data
ATLAS outreach meeting, CERN, 11.10.2011
Uta Bilow, TU Dresden
International Masterclasses - the idea
Concept
• Students (16-19 year-olds) spend 1 day at research institute
• Listen to scientists‘ introduction to particle physics
• Work like and with scientists („masters“): measurements with real particle physics data
• Basic idea from UK (1996, Roger Barlow et al.)
Objectives
• Let students explore fundamental forces and building blocks of nature
• Demonstrate the scientific research process
• Stimulate interest in science (proven in refereed evaluation Physics Education 42 (2007) 636-644)
• Offer opportunity for authentic experience
ttt
IPPOG International Masterclasses
Create an international collaboration of students
• over 130 institutes from 24 countries hold masterclasses
• parallel programme in U.S. organized by QuarkNet
• more than 8000 students participating
• since 2005: ~3 weeks each year in March
• 5 masterclasses join in video conference with CERN at the end of the day
• discuss results and differences• combine results (better accuracy)• quiz and prizes• questions to scientists at CERN
• schedule, physics framework, description of all participating institutes: www.physicsmasterclasses.org
ttt
Participation International Masterclasses
In 2012:+ Kroatia+ Ireland
US(Quarknet)adding:
- Canada- Columbia- China- Japan
0
20
40
60
80
100
120
140
2005 2006 2007 2008 2009 2010 2011
Institutes US program
0100020003000400050006000700080009000
2005 2006 2007 2008 2009 2010 2011
Students
0
5
10
15
20
25
2005 2006 2007 2008 2009 2010 2011
Countries
ttt
New in 2011: LHC in Masterclasses
• ATLAS W-Path (K.Jende, M.Kobel et al., TU Dresden)https://kjende.web.cern.ch/kjende/en/wpath.htm
• ATLAS Z-Path (F.Ould-Saada, M.Pedersen, Oslo Univ)https://kjende.web.cern.ch/kjende/en/zpath.htm
• CMS (K.Cecire et al.): J/Ψ reconstruction,
in 2012: W/Z measurement with real CMS data• ALICE (D. Hatzifotiadou et al.): looking for strange
particles
Positive feedback from organisers and students• „students liked it very much“• „big success“• „students enjoyed the new exercises“• „I had the great feeling of having worked with real data
like a scientist“
ttt
48 MCs
32 MCs
26 MCs
10 MCs
ATLAS W-Path
• 995 *real data* preselected events (~ 200 W ℓ )• W charge asymmetry structure of the proton• 5 *simulated* H WW search for yet undiscovered• Simplified interpretation:
• Expected raw student measurement: #W+/#W- = 1.56 ± 0.17• Compare to first ATLAS paper: #W+/#W- = 1.52 ± 0.07
CERN-PH-EP–2010-037 (October 2010)
44% 22%
61% 39%
Using MINERVA
ttt
• 700 *real data* preselected events (~ 300 Z ℓℓ )• Find Dilepton events calculate invariant mass• 300 *simulated* Z´ ℓℓ search for yet undiscovered• Derive mass spectrum
•
• Discuss importance of invariant mass concept• Discuss meaning of finite width• Discuss meaning of new mass peaks (Z´, not shown above)
Using HYPATIA
ttt
ATLAS Z-Path
Use of real data
• one of the key elements of all programs!• What kind of data do you prefer to work with?
(survey K.Jende, 425 students answered)
• ATLAS policy:• published data • good data quality • caveat on the DVD: for educational purposes only
Real data!
ttt
Plans for 2012W-path: • 10 000 *real data* preselected events (~ 2000 W ℓn )
give each institute a different set of data, which can be compared for consistency and combined in the video conference.
• include 250 events WW + 0 jets students measure opening angle between 2 leptons and
combine their results in histogram for angular distribution
Z-path:• larger data sample• use automatic tools to loop through• under development, for 2013?
ttt
International Masterclasses setup• All frameworks (ATLAS, CMS, ALICE…) collected by IPPOG at
www.physicsmasterclasses.org/index.php?cat=physics
• Translation via IPPOG group Available in 4 (ALICE) to 11 (ATLAS) languages
• Descriptions for local organizers atwww.physicsmasterclasses.org/index.php?cat=local_organisation&page=exercises
• Central Organisation: TU Dresden (M. Kobel, U.B.)
10ttt
• ATLAS• Minerva (M.Wielers, P. Watkins, T. McLaughlan et al.)
based on ATLANTIShttp://atlas-minerva.web.cern.ch
• Hypatia (C. Kourkoumelis et al.)based on ATLANTIShttp://hypatia.phys.uoa.gr
• CMS• iSpy online (M.Hategan, K. Cecire et al.)
in collaboration with Quarknet (US)www12.i2u2.org/elab/cms/event-display
• ALICE• ALICE masterclass application (P.Debski, Y.Foka et al.)
simplified ALICE event display in ROOT environmenthttp://aliceinfo.cern.ch/static/Pictures/pictures_High_Resolution/MasterClassWebpage.html
Technical Platforms and Tools used
ttt
THANK YOU
for your attention
Backups
ttt
Schedule 2011www.physicsmasterclasses.org/index.php?cat=schedule
…
Lots of friendly engaged young video conference moderators
ttt
Masterclass Day – sample agenda
LOCAL TIME: ACTIVITY:
8:30-9:00 Registration & Welcome
9:00-10:00 Introduction to Particle Physics
10:30-11:30 Second Talk or Tour
12:00-13:00 Lunch
13:00-15:00 Data Analysis, including Introduction
15:30-16:30 Information about Particle Physics, Studying physics,…
16:30-17:30 EVO Video Conference
ttt
Refereed evaluation in Physics Education 42 (2007) 636-644
• severity: just right• success independent of a-priori knowledge and gender
15
Most important correlation
• Understanding the scientific research processgenerates interest in (especially modern) physics
16
Other Big Programs using real LHC data
------------------- masterclass – like ---------------------------------------
UK National Particle Physics Masterclasseswww.particlephysics.ac.uk/teach/master-classes.htmlat 19 institutes, 25-30 events / year (mostly March/April)
German „Netzwerk Teilchenwelt“ (Dresden et al.)www.teilchenwelt.de (masterclasses, cosmic rays and more)
22 institutes send Ph.D. students to schools (100 - 200/year)Funded w/ 0.35M€/year over 3 years by German Ministry of R&E
-------------------- other formats ---------------------------------------- Interactions in Understanding the Universe I2U2 (FNAL et al.)
Among it: CMS E-lab: www18.i2u2.org/elab/cms/home/project.jspstudent-led, teacher-guided online project in the class-roomFunded w/ 0.48M€/year over 3 years by NSF
Learning with ATLAS@CERN (Athens et al. : finished)www.ea.gr/ep/lacern and www.learningwithatlas-portal.eudevelop frameworks and educational resources for teachers and studentsFunded w/ 0.30M€/year over 2 years by European FP7
More
PATHWAY to Inquiry Based Science Teaching (incl Athens)http://cordis.europa.eu/search/index.cfm?fuseaction=proj.document&PJ_LANG=EN&PJ_RCN=11653804&pid=28&q=6312203980A57F1F678D7E24CF2F2CDF&type=adveducational resources, teaching practices and instructional models for teachersCovering all sciences, funded w/ 3.4 M€ for 24 participants
Discover the Cosmos (incl Athens, started 09/2011)involving teachers and pupils in e-Science (particle physics and astronomy) via masterclasses, summer schools, contests,…funded w/ 0.94 M€ for 14 participants
Strange Particle Education Scenario (Stockholm)www.ep.ph.bham.ac.uk/twiki/bin/view/General/MinervaResources#Neutral_Decay_scenario_under_devMasterclasses measuring ATLAS K0 and L decays
LHC Masterclasses at Science Centres (Oslo)Collaboration w/ at least 4 science centres in Norway
… for sure more (Poland, Canada, …) …