The High-Energy Frontier Meenakshi Narain For the BU High Energy Experimental Groups: g-2 Super-K Dzero Atlas CMS

The Standard Model     tb cs spin 1/2 W+W+ W+W+ strong force g g weak force Z0Z0 Z0Z0 electromagnetism   W-W- W-W- spin 1 H spin 0 Higgs e e ud leptonsquarks

The D0 Experiment Fermilab Group –Faculty: J. Butler, U. Heintz, M. Narain –Students: S. Fatakia, K. Black, L. Felligioni S. Rappocio, Y. Kratsnisky

The D0 experiment 5000 tons 400 physicists Run I: pb -1  80 publications  100 Ph.D.s muon detector calorimeter tracker Proton-antiproton collisions –Ecom = 2 TeV –highest Ecom ! Top quark (discovery) W and Z bosons (precision measurements) Physics beyond SM Search for –Higgs –Supersymmetry –Technicolor –others

silicon detector b 800,000 channels 10  m hit resolution 1 m B(b  + X)  20%  detect muons 1 2 life time  1.5 ps  c   0.5 mm 0.5 mm precise tracking  silicon microstrip detectors top Higgs SUSY Technicolor

What are we doing? Trigger Electronics –interaction rate: 2 MHz –max readout rate: 50 Hz –recognize interesting events online muon trigger silicon trigger state-of-the-art, high-speed digital electronics

The Super-K/K2K Experiments Group: –Faculty: E. Kearns, L. Sulak, J. Stone –Postdoctoral fellows: A. Habig, K. Scholberg, C. Walter –Students: S. Desai, M. Earl, S. Rich, C. Orth

Super-Kamiokande  updown

The g-2 Experiment Group

The g-2 Experiment Due to its magnetic moment a muon precesses in a magnetic field a precise measurement of g  is sensitive to –internal structure of muon –new heavy particles that interact with the muon

The g-2 Experiment Brookhaven

Proton-proton collisions at 14 TeV probe SM in new energy regime Higgs ATLAS CMS The Large Hadron Collider

The ATLAS Detector

ATLAS Muon Chambers

ATLAS Electronics Endcap chamber Electronics stack Mezzanine board Hedgehog board ASD Chips All being built at BU and Harvard.

CMS