A silicon detector for neutrino physics

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Kokkonen, Jukka
dc.date.accessioned 2012-02-10T09:19:35Z
dc.date.available 2012-02-10T09:19:35Z
dc.date.issued 2002-05-17
dc.identifier.isbn 951-22-5961-3
dc.identifier.issn 1455-0563
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/2177
dc.description.abstract In order to demonstrate the feasibility of conducting future νμ → ντ oscillation searches using a high-resolution, large-area silicon microstrip detector, the Silicon TARget (STAR) detector was built. STAR was installed in the NOMAD short baseline neutrino oscillation experiment at the CERN SPS neutrino beam, where it recorded approximately 10 000 neutrino interactions during the operation of the detector in the period 1997-98. It consists of five layers of silicon detectors interleaved with four layers of passive boron carbide as the target. The target mass is 45 kg, while the total silicon surface area is 1.14 m2 and contains 32 000 readout channels. The individual modules have a length of 72 cm, the longest built to date. The detection of τ particles, produced in ντ charged-current interactions, would require a tracking detector with a precision of a few tens of microns in order to measure the position of the neutrino interaction vertex as well as the impact parameter of the τ decay products. The performance of STAR was studied by reconstructing the decays of K0S mesons produced in νμ charged-current interactions. For both the primary and secondary vertices, the resolution in the y direction was found to be approximately 20 μm, while that in the z direction was found to be approximately 100 μm. The double vertex resolution, a measure of how accurately the distance between the vertices can be measured, was found to be approximately 20 μm in the y direction and 300 μm in the z direction. The impact parameter resolution of the muons resulting from νμ charged-current interactions, with respect to the primary vertex, was found to be 25 μm. The vertex resolution and impact parameter results show that a microstrip silicon detector would be well-suited to measuring νμ → ντ oscillations. The high precision of silicon detectors has several other applications within neutrino physics, such as using a silicon detector as the near-detector in a future neutrino factory facility. en
dc.format.extent 71, [123]
dc.format.mimetype application/pdf
dc.language.iso en en
dc.publisher Helsinki University of Technology en
dc.publisher Teknillinen korkeakoulu fi
dc.relation.ispartofseries Internal report / Helsinki Institute of Physics en
dc.relation.ispartofseries 2002-03 en
dc.relation.haspart Performance of Long Modules of Silicon Microstrip Detectors, J. Kokkonen in G. Baricchello et al., Nuclear Instruments and Methods Phys. Res. A 413 (1998) 17-30. [article1.pdf] © 1998 Elsevier Science. By permission.
dc.relation.haspart A B<sub>4</sub>C-Silicon Target for the Detection of Neutrino Interactions, J. Kokkonen in G. Baricchello et al., Nuclear Instruments and Methods Phys. Res. A 419 (1998) 1-15. [article2.pdf] © 1998 Elsevier Science. By permission.
dc.relation.haspart Kalman Filter Tracking and Vertexing in a Silicon Detector for Neutrino Physics, J. Kokkonen in A. Cervera-Villanueva et al., CERN-EP/2001-092 (2001). Accepted for publication in Nuclear Instruments and Methods Phys. Res. A. [article3.pdf] © 2001 by authors and © 2002 Elsevier Science. By permission.
dc.relation.haspart STAR Noise and Hit-Finding Efficiency, J. Kokkonen, F.J.P. Soler, G. Vidal-Sitjes, Helsinki University of Technology Report HUT-F-A812, ISBN 951-22-5843-9, ISSN 1456-3320 (2002). [article4.pdf] © 2002 by authors.
dc.relation.haspart Observation of K0<sub>S</sub> Decays in the NOMAD Silicon TARget (STAR) Detector, J. Kokkonen, Helsinki Institute of Physics Internal Report HIP-2001-06, ISBN 951-45-8931-9, ISSN 1455-0563 (2001). [article5.pdf] © 2001 by author.
dc.relation.haspart A Silicon Tracker for Track Extrapolation into Nuclear Emulsions, J. Kokkonen in G. Catanesi et al., Nuclear Instruments and Methods Phys. Res. A 434 (1999) 218-226. [article6.pdf] © 1999 Elsevier Science. By permission.
dc.subject.other Physics en
dc.title A silicon detector for neutrino physics en
dc.type G5 Artikkeliväitöskirja fi
dc.description.version reviewed en
dc.contributor.department Department of Engineering Physics and Mathematics en
dc.contributor.department Teknillisen fysiikan ja matematiikan osasto fi
dc.subject.keyword silicon detectors en
dc.subject.keyword neutrino physics en
dc.subject.keyword neutrino oscillations en
dc.subject.keyword detection en
dc.subject.keyword NOMAD experiment en
dc.subject.keyword neutrino interactions en
dc.subject.keyword high-energy physics en
dc.identifier.urn urn:nbn:fi:tkk-001474
dc.type.dcmitype text en
dc.type.ontasot Väitöskirja (artikkeli) fi
dc.type.ontasot Doctoral dissertation (article-based) en
dc.contributor.lab Helsinki Institute of Physics (HIP) en
dc.contributor.lab Fysiikan tutkimuslaitos fi

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