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Masterclasses - best practice with authentic data from particle physics Michael Kobel TU Dresden Masterclasses - best practice with authentic data from particle physics Michael Kobel TU Dresden [email protected] tu-dresden. de

What is a particle physics masterclass? • As in a masterclass in the arts, What is a particle physics 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. Kickoff: Discover the Cosmos 02. 09. 2011 CERN 2

Motivation • Idea from UK 1996 (R. Barlow et al. ) – Students (16 Motivation • Idea from UK 1996 (R. Barlow et al. ) – Students (16 -19 year-olds) spend 1 day with researchers – Listen to scientists‘ introduction to particle physics – Work like and with scientists („masters“): measurements with real particle physics data • Why Masterclasses? – Make modern particle physics data available to students – 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 )

Two Formats 1. International masterclasses – – Organized by E/IPPOG since 2005 Once / Two Formats 1. International masterclasses – – Organized by E/IPPOG since 2005 Once / year, daily for 4 -5 weeks Students come to institutes worldwide Video Conference at the end of the day 2. Local masterclasses at schools – – National activities (Germany, I 2 U 2, etc) Netzwerk Teilchenwelt (Germany): > 100 masterclasses / year Researchers bring data to schools Also stand-alone by teacher possible Kickoff: Discover the Cosmos 02. 09. 2011 CERN 4

Participation I/EPPOG international masterclasses US (Quarknet) adding -Canada -Columbia -China -Japan Brazil South Africa Participation I/EPPOG international masterclasses US (Quarknet) adding -Canada -Columbia -China -Japan Brazil South Africa Israel 5

Introductory Talk(s) Measurements Collection of Results Interpretation Introductory Talk(s) Measurements Collection of Results Interpretation

Video conference (int. Masterclass only) – – 16: 30 – 17: 30 2 Moderators Video conference (int. Masterclass only) – – 16: 30 – 17: 30 2 Moderators at CERN 5 institutes Agenda • • • Introduction What´s going on at the LHC? Combination of results Student Q & A Discussion Quiz with prizes Kickoff: Discover the Cosmos 02. 09. 2011 CERN 7

Learn to identify particles Onion-like detectors Characteristic pattern for each particle type 8 Learn to identify particles Onion-like detectors Characteristic pattern for each particle type 8

Z 0 -decay to a tau-antitau-Pair Z 0 -decay to a Myon-Antimyon-Pair Z 0 Z 0 -decay to a tau-antitau-Pair Z 0 -decay to a Myon-Antimyon-Pair Z 0 -decay to a an electron-positron. Pair Z 0 -decay to a Quark-Antiquark. Pair, (transforming into Jets ) Event examples from LEP-Experiments 1000 events of each experiment to be analysed by students (100 per group of 2 students)

Measurements done by counting Happily confirming LEP results, published in: Physics Reports, May 2006 Measurements done by counting Happily confirming LEP results, published in: Physics Reports, May 2006 tqq t+ mm+ e+ e- nn Z 0

Masterclass aims with LHC data Expand possibilities for students More interactive e-learning tools as Masterclass aims with LHC data Expand possibilities for students More interactive e-learning tools as event displays Options to do more than counting Data quality investigations Measurement of distributions in mass, angle etc. Follow up closely, what the scientists are doing 2011: Exploit known Standard Model Processes, e. g. W+/W- ratio corresponding to (uud) quarks in proton Understand mass peaks of J/Psi and Z 2012: On the way to discover new particles Higgs WW Extra Z Bosons …

How to discover the Higgs via WW decay Measurement of W+W− Production and Search How to discover the Higgs via WW decay Measurement of W+W− Production and Search for the Higgs Boson in pp Collisions at Ös= 7 Te. V CMS Collaboration, 01 March 2011, http: //cdsweb. cern. ch/record/1332217 March 2011: CMS finds 13 W+W- candidate events Consistent with expectation from Standard Model A Higgs signal would accumulate at small values of Dfll 1. lepton Dfll 2. lepton International particle physics masterclasses 2011 12

E-learning Platforms and Tools used ATLAS Minerva (M. Wielers, P. Watkins, T. Mc. Laughlan E-learning Platforms and Tools used ATLAS Minerva (M. Wielers, P. Watkins, T. Mc. Laughlan et al) based on ATLANTIS http: //atlas-minerva. web. cern. ch Hypatia (C. Kourkoumelis et al. ) based on ATLANTIS http: //hypatia. phys. uoa. gr Under construction: Amelia (M. Barnett, J. Pequenao) http: //amelia. sourceforge. net CMS i. Spy online (M. Hategan, K. Cecire et al. ) in collaboration with Quarknet (US) www 12. i 2 u 2. org/elab/cms/event-display ALICE masterclass application (P. Debski, Y. Foka et al. ) simplified ALICE event display in ROOT environment http: //aliceinfo. cern. ch/static/Pictures/pictures_High_Resolution/Master. Class. Webpage. html 13

Refereed evaluation in Physics Education 42 (2007) 636 -644 severity: just right success independent Refereed evaluation in Physics Education 42 (2007) 636 -644 severity: just right success independent of a-priori knowledge and gender 14

Most important correlation Understanding the scientific research process generates interest in (especially modern) physics Most important correlation Understanding the scientific research process generates interest in (especially modern) physics 15

Organisation and funding • International masterclasses – Coordinated in Dresden for I/EPPOG by MK Organisation and funding • International masterclasses – Coordinated in Dresden for I/EPPOG by MK (project leader), Uta Bilow (coordinator) – Contributions from • • • Dresden didactics (Gesche Pospiech (chair) , Konrad Jende (Ph. D. student)) Oslo University (Farid Ould Saada, Maiken Pedersen et al) Quarknet (K. Cecire et al) ALICE … • Netzwerk Teilchenwelt (Germany) – Lead in Dresden for 23 German Institutes by MK (project leader), Anne Glück (coordinator), Gesche Pospiech (evaluation) – Cooperations with • • • DESY Zeuthen (measurement of cosmic rays) Würzburg University (context materials for schools) CERN (workshops for students and teachers) Funded by: Kickoff: Discover the Cosmos 02. 09. 2011 CERN 16