1. Usage of ATLAS Data in International Masterclasses, German Netzwerk Teilchenwelt by Konrad Jende on behalf of IPPOG’s International Masterclasses Working Group and Netzwerk Teilchenwelt

2. Usage of ATLAS data in Masterclasses

3. Event - create an International Collaboration among students (together with U.S. partner QuarkNet) ~4 weeks period in March every year 117 (+30 from U.S. partner) institutes from 31 countries central organization at TU Dresden: Michael Kobel and Uta Bilow Website: http://www.physicsmasterclasses.org http://www.physicsmasterclasses.org

4. Usage of ATLAS data in Masterclasses students work in pairs in front of computers, where they identify particles visually in event displays of proton-proton-collisions and thus assign an event to predetermined classes of events produce plots (histograms) out of their results and discuss them afterwards at the venue and during the videoconference

5. Usage of ATLAS data in Masterclasses Year Measurement W-PathZ-Path main idea select W and WW candidate events by visual event identification of proton-proton collisions displayed by MINERVA select candidates in the two lepton channel by visual event identification of pp collisions displayed by HYPATIA 2011 995 real events with W candidate events enriched with artificial background + 5 simulated H→WW→llνν * ) ** ) 700 real events with Z candidates +300 simulated Z’ 2012 5750 real events with W candidate events enriched with artificial background + 250 simulated H→WW→llνν see Farid’s talk 2013 approx. 5300 real events composed of W candidate events enriched with artificial background + 700 real llνν (WW, H,...) using ∼ 1 fb -1 within 2011 periods I, J and K 143 Masterclasses in total during event in 2012 4253 * ) R. Schulz: Preselection of event sets for the measurement of W and Z bosons at the Large Hadron Collider at student’s research days and comparison of simulated and real data. January 2011. Link. (master thesis)Link ** ) J. Eckert: Event pre-selection of W and Z decays at the ATLAS detector at the LHC for International Masterclasses. February 2011. Link.. ththesis for final high school exam (abitur)!!!

6. Usage of ATLAS data in Masterclasses Year W-Pathdetails on selection 2011 995 real events with W candidate events enriched with artificial background* ) ** ) + 5 simulated H→WW→llνν W candidate selection crit. at least one lepton no lepton electronmuon PT >25 GeV <70 GeV >30 GeV ΔR>1.2 Jet PT >25 GeV <75 GeV >15 GeV <75 GeV >38 GeV <75 GeV 2012 5750 real events with W candidate events enriched with artificial background *** ) + 250 simulated H→WW→llνν MET >28 GeV <75 GeV # (of Jets)<5 2013 approx. 5300 real events composed of W candidate events enriched with artificial background *** ) + 700 real llνν (WW, H,...) using ∼ 1 fb -1 within 2011 periods I, J and K **** ) WW candidate selection crit. exactly two oppositely electric charged leptons electronmuon PT (PT sub)25 GeV (20)25 GeV (15) MET (same family) 25 GeV (50) * ) R. Schulz: Preselection of event sets for the measurement of W and Z bosons at the Large Hadron Collider at student’s research days.... ** ) J. Eckert: Event pre-selection of W and Z decays at the ATLAS detector at the LHC for International Masterclasses. February 2011. Link. Link *** ) based on studies provided by * ) and ** ) **** ) C. Hasterok, October 2012.

7. Usage of ATLAS data in Masterclasses no of bins normalization maximum y- axis

8. Usage of ATLAS data in Masterclasses Z Z’Z’ J/Ψ Υ FROM SIMULATE D DATA

9. Usage of ATLAS data in Masterclasses

10. From the international idea of Masterclasses to a national network among particle physics institutes and schools

11. Netzwerk Teilchenwelt 24 German HEP institutes of which 22 host Masterclasses like events & 16 welcome students to Cosmic research days = almost all German particle physics institutes around 140 scientists involved ! high school students High school teachers

12. national Masterclasses ✴ adaption of the International Masterclasses format ✴ in “national Masterclasses” students experience being a scientist for half a day ✴ 1 talk + measurement + discussion ✴ carried out by PhD students (paid by the network) assisted by students and teachers from the network at schools, school labs, fairs and exhibitions ✴ groups of 20-30 high-school students cosmic projects ✴ 20 cosmic days, 30 cosmic weeks and 5 cosmic research projects a year ✴ detection of cosmic rays by scintillators (using QuarkNet DAQ card), “Kamiokanne” (cherenkov light detector, PM on top of an...) ✴ lead by PhD students assisted by students and teachers from the network

13. Credits/Funding projects with link to websites OrganizationFunding International Masterclasse s centrally organized @ TU Dresden by M. Kobel (project leader) and U. Bilow (coordinator) on behalf of IPPOG W-Path K. Jende, M. Kobel (idea + didactic reduction) C. Rudolph, C. Hasterok (data preparation through ATLAS group TU Dresden) G. Pospiech, K. Jende (evaluation) P. Watkins, Tom McLaughlin (MINERVA event display group) Z-Path M. Petersen, F. Ould.Saada, Eirik Gramstad (idea) M. Petersen, K. Jende, S. Dochow (website) G. Pospiech, K. Jende (evaluation) C. Kourkoumelis, Dimitros Fassouliotis, Stelios Vourakis, Dusan Vudrakovic (HYPATIA event display) Netzwerk Teilchenwelt M. Kobel (project leader) A. Glück (coordinator @ TU Dresden) S. Schmeling, G. Wiener (workshops@CERN) G. Pospiech, K. Gedigk (evaluation @ TU Dresden) T. Treffzger, M. Kuhar (contextual material @ Uni Würzburg) M. Walter, U. Behrens, C. Schwerdt (cosmics @ DESY Zeuthen)