177,360 research outputs found
Measurement of the analyzing power of the charge exchange anti-p p --> anti-n n reaction in the momentum range 546-MeV/c - 1287-MeV/c atLEAR
No full textMonte Carlo studies of the COMPASS RICH 1 optical properties
No full textBaum G, Birsa R, Bradamante F, et al. Monte Carlo studies of the COMPASS RICH 1 optical properties. In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. Nucl.Instrum.Meth. A. Vol 433. ELSEVIER SCIENCE BV; 1999: 401-405.A dedicated Monte Carlo has been built to study the optical properties of the RICH 1 detector presently under construction for the COMPASS experiment at CERN. In this paper we focus on the optimization of the position of the photon detector with respect to the RICH mirror and on the alignment of the mirror elements forming the mirror surface. (C) 1999 Elsevier Science B.V. All rights reserved
The COMPASS RICH1 detector
No full textBaum G, Birsa R, Bradamante F, et al. The COMPASS RICH1 detector. In: Nuclear Physics B - Proceedings Supplements. Nucl.Phys.Proc.Suppl. Vol 78. ELSEVIER SCIENCE BV; 1999: 354-359.A large acceptance gas RICH detector is presently under construction for the spectrometer of the COMPASS Experiment. Tts design parameters are presented and the main characteristics of the vessel, the mirrors system, the photon detectors and the front-end electronics are-discussed together with some results from prototyping activities
The COMPASS RICH project
No full textBaum G, Birsa R, Bradamante F, et al. The COMPASS RICH project. In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. Nucl.Instrum.Meth. A. Vol 433. ELSEVIER SCIENCE BV; 1999: 207-211.The set-up of the COMPASS experiment (NA58 at CERN SPS) consists of two spectrometers (a large-angle one followed by a small-angle spectrometer) both equipped with a gas RICH (RICH 1 and RICH 2) for hadron identification. RICH 1 is currently under construction, while RICH 2 will be added at a second stage. RICH 1 design parameters and technological choices are discussed. (C) 1999 Elsevier Science B.V. All rights reserved
RICHONE: a software package for the analysis of COMPASS RICH-1 data
No full textBaum G, Birsa R, Bradamante F, et al. RICHONE: a software package for the analysis of COMPASS RICH-1 data. In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. Nucl.Instrum.Meth. A. Vol 502. Elsevier Science BV; 2003: 315-317.RICHONE is the pattern recognition and PID code for COMPASS RICH-1. RICHONE is part of CORAL, the COMPASS software system, a C++ framework developed within the collaborations using up-to-date techniques and tools. (C) 2003 Elsevier Science B.V. All rights reserved
Appropriate Similarity Measures for Author Cocitation Analysis
No full textWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
The mirror system of COMPASS RICH-1
No full textAlbrecht E, Baum G, Birsa R, et al. The mirror system of COMPASS RICH-1. In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. Nucl.Instrum.Meth. A. Vol 502. Elsevier Science BV; 2003: 236-240.The architecture and the properties of the mirror system of the COMPASS RICH-I detector, composed by 116 spherical VUV reflecting units supported by a lightweight mechanical structure, are described. (C) 2003 Elsevier Science B.V. All rights reserved
"Closing the R&D Gap, Evaluating the Sources of R&D Spending"
No full textBoth spending and tax policies have been implemented in the United States with the goal of stimulating private sector research and development (R&D). Karier questions whether current R&D policy, especially the research and experimentation tax credit, can contribute to closing the gap between nondefense expenditures on R&D in the United States and such expenditures in other countries, such as Japan and Germany. He also explores possible changes to our current R&D policy to make it more effective.
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