Showing papers by "Gianni Penso published in 1989"
20 Aug 1989-Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment
TL;DR: In this article, the decay time of GS1 glass was investigated and it was shown that the decay is much slower and has a very long tail up to 1 ms, indicating that the emission of light is a complex process.
Abstract: The cerium-doped scintillating glass GS1 has previously been reported to have a fast emission decay time of about 50 ns. Here measurements are reported which show that the decay is much slower and has a very long tail up to 1 ms. A fit to the decay time distribution requires many components, indicating that the emission of light is a complex process. Varying the percentage of cerium content and annealing temperature of the glass did not change the time characteristics. These results mean that GS1 glass is unsuitable for high rate counting experiments.
19 citations
Nagoya University1, CERN2, Sapienza University of Rome3, University College London4, University College Dublin5, Birkbeck, University of London6, Women's College, Kolkata7, Nagoya Institute of Technology8, Toho University9, Yokohama National University10, Gifu University11, Utsunomiya University12, Aichi University of Education13
01 Jan 1989-Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment
TL;DR: In this paper, a detailed description of experiment WA75, which was performed at CERN to search for beauty particles, is given, and an estimate of the sensitivity of the experiment to beauty and charmed-particle production is made.
Abstract: We give here a detailed description of experiment WA75, which was performed at CERN to search for beauty particles. Events containing at least one muon with a high momentum transverse to the beam direction were selected; then the primary interactions and decay vertices, located in stacks of nuclear research emulsions, were examined and analysed. The various parts of the apparatus are described and the off-line analysis and search in emulsion are discussed. An estimate is made of the sensitivity of the experiment to beauty- and charmed-particle production.
17 citations
15 Apr 1989-Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment
TL;DR: In this article, a high-resolution tracking detector based on scintillating optical glass fibres was developed for the WA84 experiment at the CERN Super Proton Synchrotron for the study of heavy-flavour production and decay.
Abstract: A progress report is presented on the development of a high-resolution tracking detector based on scintillating optical glass fibres. It is planned to use this technique in the WA84 experiment∗ at the CERN Super Proton Synchrotron for the study of heavy-flavour production and decay.
13 citations
TL;DR: In this article, the authors measured the inclusive cross section for B B production by 320 GeV π− on uranium, assuming different production models and a variable amount of B 0− B 0 mixing.
10 citations