Groupe DØ Arnaud Duperrin Master 2 P3TMA 7 septembre 2012 Physique des Particules Arnaud Duperrin Marie-Claude CousinouEric KajfaszElemer NagySmain Kermiche Nicolas Osman
Where is DØ ? 2 Présentation au Master 2 P3TMAGroupe DØ Site expérimental : Fermilab à environ 50 miles de Chicago (USA)
Tevatron: previous generation of “LHC” accelerator 3 Présentation au Master 2 P3TMAGroupe DØ Collisionneur antiprotons-protons. Energie ~2 TeV We stopped to take data in September Published Higgs papers in July 2012 with 10 fb -1 data recorded
What we are working on: 4 Présentation au Master 2 P3TMAGroupe DØ
But LHC found the Higgs already? True! ATLAS/CMS experiments reached a 5 sigma significance (i.e. discovery in July 2012). In parallel at Tevatron, we published what we call an evidence (i.e. 3 sigma) The Tevatron result is still an important and complementary piece in the puzzle because this “evidence” is in the main decay channel H →bb 5 Présentation au Master 2 P3TMAGroupe DØ
Conclusion about the DØ CPPM group Almost done with our work at Fermilab on Higgs searches An important page of history of particle physics is closing! – The D0 CPPM group had an important role in this journey “History teaches everything including the future” Lamartine 6 Présentation au Master 2 P3TMAGroupe DØ Promotion du Master P3TMA