A Silicon Microstrip Detector for COMPASS and a First Measurement of the Transverse Polarization of Lambda-Hyperons from Quasi-Real Photo-Production

A new Silicon microstrip detector was developed for the COMPASS experiment at the CERN / SPS. The detector was installed in the year 2002 and successfully operated. It provides a space resolution down to 10 µm and a time resolution of the order of 3 ns. In order to increase its radiation tolerance,...

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Autor principal: Wiesmann, M
Lenguaje:eng
Publicado: CERN 2004
Materias:
Particle Physics - Experiment
Acceso en línea:http://cds.cern.ch/record/723853
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author Wiesmann, M
author_facet Wiesmann, M
author_sort Wiesmann, M
collection CERN
description A new Silicon microstrip detector was developed for the COMPASS experiment at the CERN / SPS. The detector was installed in the year 2002 and successfully operated. It provides a space resolution down to 10 µm and a time resolution of the order of 3 ns. In order to increase its radiation tolerance, it was designed to be operated at a temperature of 130 K. In the second part a first measurement of the transverse polarization of Lambda hyperons from quasi-real photo-production in the COMPASS experiment was performed. Averaged over the full kinematics a positive polarization of 4.4 +/- 0.8 (stat.) +/- 0.5 (sys.) % was found. In the target fragmentation region the behaviour of the hyperon polarization was found to be similar to the case of meson-production.
id cern-723853
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2004
publisher CERN
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spelling cern-7238532019-09-30T06:29:59Zhttp://cds.cern.ch/record/723853engWiesmann, MA Silicon Microstrip Detector for COMPASS and a First Measurement of the Transverse Polarization of Lambda-Hyperons from Quasi-Real Photo-ProductionParticle Physics - ExperimentA new Silicon microstrip detector was developed for the COMPASS experiment at the CERN / SPS. The detector was installed in the year 2002 and successfully operated. It provides a space resolution down to 10 µm and a time resolution of the order of 3 ns. In order to increase its radiation tolerance, it was designed to be operated at a temperature of 130 K. In the second part a first measurement of the transverse polarization of Lambda hyperons from quasi-real photo-production in the COMPASS experiment was performed. Averaged over the full kinematics a positive polarization of 4.4 +/- 0.8 (stat.) +/- 0.5 (sys.) % was found. In the target fragmentation region the behaviour of the hyperon polarization was found to be similar to the case of meson-production.CERNCERN-THESIS-2004-011oai:cds.cern.ch:7238532004
spellingShingle Particle Physics - Experiment
Wiesmann, M
A Silicon Microstrip Detector for COMPASS and a First Measurement of the Transverse Polarization of Lambda-Hyperons from Quasi-Real Photo-Production
title A Silicon Microstrip Detector for COMPASS and a First Measurement of the Transverse Polarization of Lambda-Hyperons from Quasi-Real Photo-Production
title_full A Silicon Microstrip Detector for COMPASS and a First Measurement of the Transverse Polarization of Lambda-Hyperons from Quasi-Real Photo-Production
title_fullStr A Silicon Microstrip Detector for COMPASS and a First Measurement of the Transverse Polarization of Lambda-Hyperons from Quasi-Real Photo-Production
title_full_unstemmed A Silicon Microstrip Detector for COMPASS and a First Measurement of the Transverse Polarization of Lambda-Hyperons from Quasi-Real Photo-Production
title_short A Silicon Microstrip Detector for COMPASS and a First Measurement of the Transverse Polarization of Lambda-Hyperons from Quasi-Real Photo-Production
title_sort silicon microstrip detector for compass and a first measurement of the transverse polarization of lambda-hyperons from quasi-real photo-production
topic Particle Physics - Experiment
url http://cds.cern.ch/record/723853
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AT wiesmannm siliconmicrostripdetectorforcompassandafirstmeasurementofthetransversepolarizationoflambdahyperonsfromquasirealphotoproduction

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