Published May 1, 2014 | Version v1
Journal article Metadata-only

SiΛvio: A trigger for Λ-hyperons

Creators

  • 1. Excellence Cluster Universe, Technische Universität München, Boltzmannstr. 2, D-85748 (Germany)
  • 2. GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt (Germany)
  • 3. Laboratoire de Physique Corpusculaire, IN2P3/CNRS, Université Blaise Pascal, Clermont-Ferrand (France)
  • 4. Ruđer Bošković Institute, Zagreb (Croatia)
  • 5. Physikalisches Institut der Universität Heidelberg, Heidelberg (Germany)
  • 6. Stefan-Meyer-Institut für subatomare Physik, Österreichische Akademie der Wissenschaften, Wien (Austria)
  • 7. University of Split, Split (Croatia)
  • 8. Institute of Experimental Physics, Faculty of Physics, University of Warsaw, Warsaw (Poland)
  • 9. Wigner RCP, RMKI, Budapest (Hungary)

Description

As online trigger for events containing Λ hyperons in p+p collisions at 3.1 GeV a silicon-based device has been designed and built. This system has been integrated close to the target region within the FOPI spectrometer at GSI and was also employed as a tracking device to improve the vertex reconstruction of secondary decays. The design of the detector components, read-out, the trigger capability as well as the tracking performance are presented. An enrichment factor of about 14 was achieved for events containing a Λ-hyperon candidate

Availability note (English)

Available from http://dx.doi.org/10.1016/j.nima.2014.01.050

Additional details

Identifiers

DOI
10.1016/j.nima.2014.01.050;
arXiv
arXiv:1307.7470v1;
PII
S0168-9002(14)00101-6;

Publishing Information

Journal Title
Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
Journal Volume
745
Journal Page Range
p. 38-49
ISSN
0168-9002
CODEN
NIMAER

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
46019726
Subject category
S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY;
Descriptors DEI
DESIGN; ENRICHMENT; EQUIPMENT; GEV RANGE 01-10; HYPERONS; PERFORMANCE; READOUT SYSTEMS; SILICON; SPECTROMETERS
Descriptors DEC
BARYONS; ELEMENTARY PARTICLES; ELEMENTS; ENERGY RANGE; FERMIONS; GEV RANGE; HADRONS; MEASURING INSTRUMENTS; SEMIMETALS; STRANGE PARTICLES

Optional Information

Copyright
Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.