August 20, 2009It took over a year-and-a-half, but my colleagues and I have completed an extremely sensitive search for low-mass dark matter [1]. This search was a key part of the case for taking the Upsilon(3S) and Upsilon(2S) data back in 2007-2008, before the BaBar experiment was shut down.
The strategy was one that evolved out of a [...]
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June 14, 2009The past year has been a remarkable one in the search for the Higgs. Not only have the Tevatron experiments made strides to actually rule out a Standard Model Higgs Boson in certain mass regions, but progress has been made in filling in an important gap in our understanding of the Higgs sector. In certain [...]
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May 29, 2009Next week (June 2-6), I will be at CERN for the first time in many years (and to kickoff my many visits to come!). I am attending the ATLAS Collaboration Physics Week, a four-day event centering on ATLAS physics analysis. I am excited to be heading to the new Mecca of particle physics, the new [...]
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February 15, 2009When we proposed the taking of the world’s largest sample of Upsilon(3S) mesons (which then led also to the taking of the world’s largest sample of Upsilon(2S) mesons), a key component of the proposal was coverage of low-mass Higgs boson scenarios. Such scenarios can arise in extensions of the minimal supersymmetric Standard Model, and could [...]
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December 7, 2008Just shy of 6 months after the presentation of the discovery of the bottomonium ground state, BaBar has presented confirmation of the discovery using Y(2S) decays to the ground state instead of Y(3S) decays. The results were presented by on of the core analysts, Peter Kim, at the QWG workshop in Nara, Japan. His slides [...]
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September 14, 2008This past week, at the CKM 2008 conference in Rome, Italy, BaBar unveiled its latest results on the search for the important and rare decay, B -> tau nu. This decay is expected to occur in one out of every 10,000 B+ meson decays, where the “B+” is the electrically charged bound-state of a bottom [...]
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Steve Sekula is an Assistant Professor of Experimental Particle Physics at Southern Methodist University. He earned his Ph.D. from the University of Wisconsin-Madison in 2004, and currently works on the BaBar Experiment at SLAC and the ATLAS Experiment at CERN.
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