Indiana University High Energy Physics
and Astrophysics Seminars
2007-2008 Academic Year
| Mondays, 4pm | Refreshments 3:30 pm |
| Swain West 238 |
Contact: Mike Berger and Mark Messier
Fall Semester 2007
| Aug. 6:
Special Seminar 10 am |
Search for the Higgs Boson at CDF in the channel ZH -> l- l+ b bbar |
| Jonathon Efron | |
| Ohio State University
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| Aug. 27: | Measurement of the CP asymmetry in semileptonic B decays at CDF |
| Christopher Marino | |
| U. of Illinois
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| Aug. 28:
Tuesday Special Seminar 10 am |
Searching for Exotic States at BaBar |
| Sepehr Saremi | |
| Stanford Linear Accelerator Center
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| Sep. 3: | |
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| Sep. 10: | Organizational Meeting |
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| Sep. 17: | Topological Phases in Quantum Mechanics |
| Roman Buniy | |
| Indiana U.
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| Sep. 24: | Update on LHC, ATLAS, and TRT |
| Harold Ogren | |
| Indiana U.
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| Oct. 1: | Physics with taus at D0 |
| Serban Protopopescu | |
| BNL
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| Oct. 8: | Evidence for Mixing in the D0-D0bar System from Belle |
| Alan Schwartz | |
| U. Cincinnati
We review searches for mixing and CP violation in the D0-D0bar system, which, until recently, have eluded experimental observation. We present evidence for D0-D0bar mixing recently obtained by the Belle experiment using two different analysis methods: comparing the lifetimes of D0 decays to K-pi+, K+K- and pi+pi- final states, and performing a time-dependent Dalitz-plot analysis of the self-conjugate final state K0 pi+pi-. These analyses yield measurements of the mixing parameters Delta m and Delta gamma; the results obtained differ significantly from zero. These results are then combined with other D0 mixing measurements to search for CP violation in the D0-D0bar system. |
| Oct. 15: | |
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| Oct. 22: | |
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| Oct. 29: | State of the art detectors and searches for new particles |
| Daniela Bortoletto | |
| Purdue/CDF
The CDF silicon detector is playing a critical role in the searches for the standard model Higgs. The latest results for the search for the standard model Higgs produced in association with a W and a Z boson at CDF are presented. The results include about 1 to 1.7 fb-1 of data collected by CDF in run II of the Tevatron. I will then discuss the challenges of tracking at the LHC and the importance of pixel detectors. The CMS hybrid pixel detector is located at the core of the CMS tracker and will contribute significantly to track and vertex reconstruction. The detector is subdivided into a three layer barrel, and two end-cap disks on either side of the interaction region. The system operating in the 25 ns beam crossing time of the LHC must be radiation hard, low mass, and robust. The construction of the barrel modules and the forward disks has started after extensive R&D. I will presnet the status of the project. |
| Nov. 5: | Neutrino Oscillations, $\theta_{13}$, and the Daya Bay Experiment |
| Jim Napolitano | |
| RPI
We now know that neutrinos have mass, and that their weak eigenstates mix. However, the pattern of lepton masses and mixing angles is entirely different from that for quarks. For example, the first and second generations are almost completely mixed, as are the second and third. The first and third generations, though, have a mixing angle that is consistent with zero, based on existing measurements. I will briefly review the status of neutrino oscillation measurements and summarize our current knowledge of masses and mixing angles. I will then describe a China/US collaboration mounting an experiment at the Daya Bay nuclear reactor complex, north of Hong Kong. Our goal is to either measure, or set a limit on, the "last" neutrino mixing angle "$\theta_{13}$" at a level of 1%. |
| Nov. 12: | |
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| Nov. 19: | THANKSGIVING |
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| Nov. 26: | Lifetime of a Beautiful and Charming Meson : Semileptonic Bc Decay at D-Zero |
| Leah Welty-Rieger | |
| Indiana U.
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| Dec. 3: | |
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| Dec. 10: | Post Thesis up date on Measurement of the CP asymmetry in semileptonic B decays at CDF |
| Chris Marino | |
| U. of Illinois
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