Bulletin of the American Physical Society
76th Annual Meeting of the Southeastern Section of APS
Volume 54, Number 16
Wednesday–Saturday, November 11–14, 2009; Atlanta, Georgia
Session EA: Current Experiments in High Energy Physics |
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Chair: Bradley Cox, University of Virginia Room: Amsterdam |
Thursday, November 12, 2009 3:45PM - 4:15PM |
EA.00001: Recent Results from the BaBar experiment Invited Speaker: Recent interesting results from the BaBar experiment will be presented. These will include results on charm mixing and other charm results, quarkonium states, observations of new states and CKM angle measurements. [Preview Abstract] |
Thursday, November 12, 2009 4:15PM - 4:45PM |
EA.00002: Status of the CDF Physics Program Invited Speaker: Experimental particle physics is in the midst of an exciting era. Operations at the Large Hadron Collider are scheduled to begin this Fall; the high energy collisions provided by the LHC will offer an unprecedented glimpse at the fundamental world. However ongoing experiments operating at the current highest energy particle accelerator, Fermilab's Tevatron collider, continue to push the limits of our understanding. In this talk I will review the current state of the physics program from the Collider Detector at Fermilab (CDF), one of two general purpose experiments operating at the Tevatron. I will describe the CDF particle detection apparatus, the strategies for reconstruction of the details of a collision and how we use this information to pursue crucial questions about the fundamental world. [Preview Abstract] |
Thursday, November 12, 2009 4:45PM - 5:15PM |
EA.00003: Direct Searches for Dark Matter Invited Speaker: One of the most significant outstanding questions in cosmology is the origin and nature of ``dark matter.'' The existence of dark matter via its gravitational effects has been established, but the exact nature of the this dark matter remains elusive. What makes this mystery even more compelling is the strong evidence that dark matter is non-baryonic and may likely consist of some unknown fundamental particle or particles. This talk will focus on experimental searches to directly detect tdark matter and to unravel the mystery of its composition. I will discuss the basic concept of direct detection and the experimental challenges that must be surmounted to reduce ubiquitous backgrounds. [Preview Abstract] |
Thursday, November 12, 2009 5:15PM - 5:45PM |
EA.00004: The DZero Detector Invited Speaker: The D\O\ detector has a central-tracking system, consisting of a silicon microstrip tracker (SMT) and a central fiber tracker (CFT), both located within a 2~T superconducting solenoidal magnet, with designs optimized for tracking and vertexing at pseudorapidities $|\eta|<3$ and $|\eta|<2.5$, respectively. Central and forward preshower detectors are positioned just outside of the superconducting coil. A liquid-argon and uranium calorimeter has a central section (CC) covering pseudorapidities $|\eta|$ up to $\approx 1.1$, and two end calorimeters (EC) that extend coverage to $|\eta|\approx 4.2$, with all three housed in separate cryostats. An outer muon system, at $|\eta|<2$, consists of a layer of tracking detectors and scintillation trigger counters in front of 1.8~T toroids, followed by two similar layers after the toroids. Luminosity is measured using plastic scintillator arrays placed in front of the EC cryostats. The trigger and data acquisition systems are designed to accommodate the high luminosities of Run II. At the moment, the Tevatron accelerator delivers initial instantaneous luminosities above $3 \cdot 10^{32} cm^{-2}s^{-1}$. I will discuss current and future performance of the D\O\ detector in this challenging environment. [Preview Abstract] |
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