Search for heavy long-lived particles that decay to photons at CDF II
Physical Review Letters 99:12 (2007)
Abstract:
We present the first search for heavy, long-lived particles that decay to photons at a hadron collider. We use a sample of Î+jet+missing transverse energy events in pp collisions at s=1.96 TeV taken with the CDF II detector. Candidate events are selected based on the arrival time of the photon at the detector. Using an integrated luminosity of 570pb-1 of collision data, we observe 2 events, consistent with the background estimate of 1.3 0.7 events. While our search strategy does not rely on model-specific dynamics, we set cross section limits in a supersymmetric model with I E 10 GE and place the world-best 95% C.L. lower limit on the χ˜10 mass of 101 GeV/c2 at Ï.,χ˜10=5ns. © 2007 The American Physical Society.International Linear Collider Reference Design Report Volume 2: PHYSICS AT THE ILC
ArXiv 0709.1893 (2007)
Search for resonant ttbar production in ppbar collisions at sqrt{s}=1.96 TeV
ArXiv 0709.0705 (2007)
The CMS pixel system
Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment Elsevier 579:2 (2007) 669-674