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in creator/contributor: "Wester, W."  
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GammeV and GammeV-CHASE

Description: Physics beyond the Standard Model might include Weakly Interacting Slim Particles (WISPs) that address questions such as what is the nature of dark matter or even shed insight into the underlying nature of dark energy. WISPs are a general class of particles that include axions, axion-like particles, hidden sector photons, milli-charged particles, chameleons, etc. The GammeV (Gamma to milli-eV) experiment originated in 2007 in order to test a positive anomalous axion-like particle interpretation… more
Date: November 1, 2011
Creator: Wester, W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Proposal to upgrade the MIPP experiment

Description: The upgraded MIPP physics results are needed for the support of NuMI projects, atmospheric cosmic ray and neutrino programs worldwide and will permit a systematic study of non-perturbative QCD interactions. The MIPP TPC is the largest contributor to the MIPP event size by far. Its readout system and electronics were designed in the 1990's and limit it to a readout rate of 60 Hz in simple events and {approx} 20 Hz in complicated events. With the readout chips designed for the ALICE collaboration… more
Date: September 1, 2006
Creator: Isenhower, D.; Sadler, M.; Towell, R.; Watson, S.; Peterson, R. J.; Baker, W. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Exotic Physics: Search for New Physics Leading to High Mass Tau Pairs With ppbar Collisions at 1.96 TeV Using Cdf Ii

Description: Abstract: We present the results of a search for anomalous resonant production of tau lepton pairs with large invariant mass, the first such search using the CDF II Detector in Run II of the Tevatron p{bar p} collider. Such anomalous production could arise from various new physics processes. In a data sample corresponding to 195 pb{sup -1} of integrated luminosity we predict 2.8 {+-} 0.5 events from Standard Model background processes and observe 4. We use this result to set limits on the produ… more
Date: June 15, 2005
Creator: Academia Sinica Institute of Physics
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Supernova/Acceleration Probe: A Satellite Experiment to Study the Nature of the Dark Energy

Description: The Supernova/Acceleration Probe (SNAP) is a proposed space-based experiment designed to study the dark energy and alternative explanations of the acceleration of the Universes expansion by performing a series of complementary systematics-controlled astrophysical measurements. We here describe a self-consistent reference mission design that can accomplish this goal with the two leading measurement approaches being the Type Ia supernova Hubble diagram and a wide-area weak gravitational lensing s… more
Date: May 12, 2004
Creator: Aldering, G.; Althouse, W.; Amanullah, R.; Annis, J.; Astier, P.; Baltay, C. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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SVX4: A New Deep-Submicron Readout IC for the Tevatron Collider at Fermilab

Description: SVX4 is the new silicon strip readout IC designed to meet the increased radiation tolerance requirements for Run IIb at the Tevatron collider. Devices have been fabricated, tested, and approved for production. The SVX4 design is a technology migration of the SVX3D design currently in use by CDF. Whereas SVX3D was fabricated in a 0.8 {micro}m radiation-hard process, SVX4 was fabricated in a standard 0.25 {micro}m mixed-signal CMOS technology using the ''radiation tolerant by design'' transistor … more
Date: October 1, 2003
Creator: Krieger, B.; Alfonsi, S.; Bacchetta, N.; Centro, S.; Christofek, L.; Garcia-Sciveres, M. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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A Search for the Higgs Boson Using Very Forward Tracking Detectors with CDF

Description: The authors propose to add high precision track detectors 55 m downstream on both (E and W) sides of CDF, to measure high Feynman-x protons and antiprotons in association with central states. A primary motivation is to search for the Higgs boson, and if it is seen to measure its mass precisely. The track detectors will be silicon strip telescopes backed up by high resolution time-of-flight counters. They will have four spectrometer arms, for both sides of the p and {bar p} beams. The addition o… more
Date: March 1, 2001
Creator: Albrow, M. G.; Atac, M.; Booth, P.; Crosby, P.; Dunietz, I.; Finley, D. A. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Operation of the CDF Silicon Vertex Detector with Colliding Beams at Fermilab

Description: Describes the main features of the CDF Silicon Vertex Detector (SVX) and discuss its performance during actual colliding beam operation at the Fermilab Tevatron. Details on S/N ratio, alignment, resolution and efficiency are given.
Date: October 1, 1992
Creator: Bedeschi, F.; Bolognesi, V.; Dell`Agnello, S.; Galeotti, S.; Grieco, G.; Mariotti, M. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Construction of the CDF Silicon Vertex Detector

Description: Technical details and methods used in constructing the CDF silicon vertex detector are presented. This description includes a discussion of the foam-carbon fiber composite structure used to silicon microstrip detectors and the procedure for achievement of 5 {mu}m detector alignment. The construction of the beryllium barrel structure, which houses the detector assemblies, is also described. In addition, the 10 {mu}m placement accuracy of the detectors in the barrel structure is discussed and the… more
Date: April 1, 1992
Creator: Skarha, J.; Barnett, B.; Boswell, C.; Snider, F.; Spies, A.; Tseng, J. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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