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Search for the neutrinoless muon decay. mu. /sup +/. -->. e/sup +/. gamma

Description: Separate muon, electron, and tau numbers are conserved in the minimal standard model of electroweak interactions with massless neutrinos. However, in many extensions to the standard model, separate lepton numbers are not expected to be conserved quantities. A new search for muon number non-conserving processes has been undertaken at the Los Alamos Meson Physics Facility (LAMPF), specifically to look for three neutrinoless decay modes of the muon. The search for the decay of a muon to an electro… more
Date: July 1, 1985
Creator: Wilson, S.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Harvard participation in the UA1 experiment

Description: This report is a renewal proposal to continue Harvard's participation in the UA1 experiment on proton-antiproton collisions. The proposed activity emphasizes events with large missing energy and W and Z neutral decays. (LSP)
Date: January 1, 1985
Creator: Rohlf, J.W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Data acquisition system for SLD

Description: This paper describes the data acquisition system planned for the SLD detector which is being constructed for use with the SLAC Linear Collider (SLC). An exclusively FASTBUS front-end system is used together with a VAX-based host system. While the volume of data transferred does not challenge the band-width capabilities of FASTBUS, extensive use is made of the parallel processing capabilities allowed by FASTBUS to reduce the data to a size which can be handled by the host system. The low repetit… more
Date: May 1, 1985
Creator: Sherden, D.J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Long-drift calorimeter modules for the Soudan 2 nucleon decay detector

Description: The first full size 5-ton detector modules for the Soudan 2 nucleon decay experiment have been assembled and operated. Modules consist of a hexagonal array of drift tubes and corrugated steel, instrumented to read out three-dimensional track positions and pulse height. These will be assembled to form an isotropic, continuously sensitive, self-triggering detector. Details of the design, construction, operation and performance of the modules are discussed. 7 refs., 10 figs.
Date: January 1, 1985
Creator: Hoftiezer, J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Overview of the data acquisition electronics system design for the SLAC Linear Collider Detector (SLD)

Description: The SLD Detector will contain five major electronics subsystems: Vertex, Drift, Liquid Argon Calorimeter, Cerenkov Ring Imaging, and Warm Iron Calorimeter. To implement the approximately 170,000 channels of electronics, extensive miniaturization and heavy use of multiplexing techniques are required. Design criteria for each subsystem, overall system architecture, and the R and D program are described.
Date: September 1, 1985
Creator: Larsen, R.S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Single photon searches at PEP

Description: The MAC and ASP searches for events with a single photon and no other observed particles are reviewed. New results on the number of neutrino generations and limits on selection, photino, squark and gluino masses from the ASP experiment are presented.
Date: December 1, 1985
Creator: Hollebeek, R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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MARK II end cap calorimeter electronics

Description: An end cap calorimeter system has been added to the MARK II detector in preparation for its use at the SLAC Linear Collider. The calorimeter uses 8744 rectangular proportional counter tubes. This paper describes the design features of the data acquisition electronics that has been installed on the calorimeter. The design and use of computer-based test stands for the amplification and signal-shaping components is also covered. A portion of the complete system has been tested in a beam at SLAC. I… more
Date: October 1, 1985
Creator: Jared, R. C.; Haggerty, J. S.; Herrup, D. A.; Kirsten, F. A.; Lee, K. L.; Olson, S. R. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Detector problems at the SSC

Description: During the last couple of years there has been considerable concern expressed among the US high energy community as to whether detector limitations would prevent one from being able to fully exploit a luminosity of 10/sup 33/ cm/sup -2/ sec/sup -1/ at a hadron-hadron high energy collider. As a result of these concerns, a considerable amount of work has been done recently in trying to understand the nature of potential difficulties and the required R and D that needs to be performed. A lot of th… more
Date: February 1, 1985
Creator: Wojcicki, S.G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Physics at 10/sup 34/ cm/sup -2/sec/sup -1/

Description: Accelerator and detector operation at a luminosity of 10/sup 34/ cm/sup -2/sec/sup -1/ are briefly discussed. While not all physics can (nor need be) studied at such luminosities, interactions with appropriate and distinctive signatures can be observed even in the presence of many other simultaneous events. The highest luminosities will be needed to reach the highest masses and/or to compensate for loss of rates from small branching ratios. As a rule of thumb, an order-of-magnitude increase in … more
Date: December 1, 1985
Creator: Diebold, R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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SLD Liquid Argon Calorimeter Prototype Test Results

Description: The results of the SLD test beam program for the selection of a calorimeter radiator composition within a liquid argon system are described, with emphasis on the study of the use of uranium to obtain equalization of pion and electron responses.
Date: October 1, 1985
Creator: Dubois, R.; Eigen, G.; Au, Y.; Sleeman, J.; Breidenbach, M.; Brau, J. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Study of hadronization using energy flow from e/sup +/e/sup -/ annihilation into quarks and gluons at. sqrt. s of 29 GeV

Description: We have made a high statistics study of QCD jets produced in e/sup +/e/sup -/ annihilations at ..sqrt..s of 29 GeV and observed in the MAC detector located at the PEP storage ring at SLAC. The MAC detector uses calorimetry and provides a homogeneous response over much of its 98% . 4..pi.. sr instrumented solid angle. A data sample of well reconstructed hadronic events was selected by requiring that E/sub vis/ in the calorimeters be near ..sqrt..s, and almost all the energy be deposited in the c… more
Date: November 1, 1985
Creator: Rosenberg, L. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Electronic trigger for the ASP experiment

Description: The Anomalous Single Photon (ASP) electronic trigger is described. The experiments is based on an electromagnetic calorimeter composed of arrays of lead glass blocks, read out with photo-multiplier tubes, surrounding the interaction point at the PEP storage ring. The primary requirement of the trigger system is to be sensitive to low energy (approx. =0.5 GeV and above) photons whilst discriminating against high backgrounds at PEP. Analogue summing of the PMT signals and a sequence of programmab… more
Date: November 1, 1985
Creator: Wilson, R. J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Collider Detector at Fermilab (CDF)

Description: A description of the Collider Detector at Fermilab (CDF) is given. It is a calorimetric detector, which covers almost the complete solid angle around the interaction region with segmented calorimeter ''towers''. A 1.5 Tesla superconducting solenoid, 3m in diameter and 5m long, provides a uniform magnetic field in the central region for magnetic analysis of charged particles. The magnetic field volume is filled with a large cylindrical drift chamber and a set of Time Projection Chambers. Muon de… more
Date: October 1, 1985
Creator: Jensen, H.B.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Performance of the SLD Warm Iron Calorimeter Pre-Prototype

Description: The performance of a pre-prototype of the SLD Warm Iron Calorimeter (WIC) build with proportional tube cathode pad readout has been studied. The calorimeter was found to have an average resolution of 36.7 +- 0.2% for muons at 2.0, 5.0 and 10.5 GeV and 81 +- 2%/..sqrt..E for pion showers at 5.0 and 10.5 GeV. The mean energy found for the pion showers was consistent with a linear dependence on energy within these standard deviations. 4 refs., 6 figs., 3 tabs.
Date: October 1, 1985
Creator: Johnson, A. S.; Busza, W.; Friedman, J.; Kendall, H.; Kistiakowsky, V.; Lyons, T. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Search for anomalous single photon production at PEP

Description: This talk reports a search for the production by e/sup +/e/sup -/ annihilation of a single photon accompanied by particles that interact only weakly in matter. The search was performed at PEP (..sqrt..s = 29 GeV) with a new detector, ASP. No unexpected signal was observed. The limit N/sub nu/ < 14 (90% CL) is placed on the number of light neutrino species, and the mass of scalar electrons predicted by the theories of supersymmetry is constrained to m/sub approx.e/ > 51 GeV/c/sup 2/ (90% CL) for… more
Date: October 1, 1985
Creator: Wilson, R. J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Harvard participation in the UA1 experiment

Description: This report is a renewal proposal to continue Harvard`s participation in the UA1 experiment on proton-antiproton collisions. The proposed activity emphasizes events with large missing energy and W and Z neutral decays. (LSP)
Date: December 31, 1985
Creator: Rohlf, J. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

[Hadroproduction of charmed and bottom mesons (Fermilab experiment E-653): Progress report, March 31, 1984--April 1, 1985]

Description: This progress report describes U of Oklahoma participation in a number of detector development efforts. The first is a beam solid state device which was performance tested in runs during June and July, 1984. This was a partially instrumented test of an array of gridded solid state detectors. A beam drift chamber was also performance tested. This consist of 18 planes of 2 cells each. Each cell has drift distance of 18 mm on each side of the sense wire. Preliminary tests were also performed on a … more
Date: December 31, 1985
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Sources for proportional tube gain variation: What to do about it

Description: In the high-energy domain systematic uncertainties become a substantial fraction of attainable energy resolution of a proportional tube electromagnetic calorimeter. Sources of nonuniformity and fluctuation of calorimeter response are discussed and test data on the magnitude of the effects are presented. Possible ways of maintaining these effects under control are discussed and test data are discussed which demonstrated that such effects could in fact be monitored and corrected to less than 1%.
Date: October 1, 1985
Creator: Fukui, Y.; Mishina, M.; Hayashide, Y.; Kanda, S.; Kim, S.; Kondo, K. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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